🔎 𝗠𝗮𝘅𝗶𝗺𝗶𝘇𝗶𝗻𝗴 𝗛𝗼𝗿𝗶𝘇𝗼𝗻𝘁𝗮𝗹 𝗗𝗶𝗿𝗲𝗰𝘁𝗶𝗼𝗻𝗮𝗹 𝗗𝗿𝗶𝗹𝗹𝗶𝗻𝗴 𝗦𝘂𝗰𝗰𝗲𝘀𝘀:𝗧𝗵𝗲 𝗙𝘂𝘁𝘂𝗿𝗲 𝗼𝗳 𝗨𝗻𝗱𝗲𝗿𝗴𝗿𝗼𝘂𝗻𝗱 𝗗𝗿𝗶𝗹𝗹𝗶𝗻𝗴 𝗔𝗰𝗰𝘂𝗿𝗮𝗰𝘆 𝗜𝘀 𝗛𝗲𝗿

 

Horizontal directional drilling technology completes the task of laying underground pipelines without destroying the surface environment. However, the practical application of this technology faces the challenge of accurately determining the drilling direction in complex underground environments.

As an instrument that can accurately measure the true north direction, the north finder provides an effective solution to the problem of determining the direction of horizontal directional drilling.

Take the ER-MNS-09 north finder as an example. It is a cylindrical north finder developed specifically for drilling. It is not restricted by the external environment and is not interfered by the magnetic field. It can provide azimuth and attitude information by itself.

It can be used in machines such as HDD tools, gyro tools and underground tunneling machines to reduce measurement errors.

Unique shape, flexible installation

The cylindrical shape is 120mm in length and only 30mm in diameter, and the weight is ≤150g. It can be installed in the probe behind the drill bit.

High-accuracy North Seeking

The north-seeking accuracy can reach 0.25°secψ(1σ), which can achieve high-precision directional measurement and meet the strict accuracy requirements of horizontal directional drilling.

Measure azimuth and attitude angle (pitch, roll) independently. The measurement error of azimuth is controlled within a very small range, providing reliable guarantee for drilling construction.

Self-alignment and attitude tracking function

After startup, it can automatically initialize alignment and then automatically determine the true north direction. The north search time only takes 5 minutes. It can also track and provide attitude information.

Adapt to harsh environment, stable and reliable

It can resist strong impact and vibration. The working temperature range of the normal temperature version is 5°C~+55°C. The working temperature range of the high temperature version is 5°C~+125°C.

𝙄𝙛 𝙮𝙤𝙪 𝙖𝙧𝙚 𝙞𝙣𝙩𝙚𝙧𝙚𝙨𝙩𝙚𝙙 𝙞𝙣 𝙩𝙝𝙚 𝙄𝙈𝙐 𝙙𝙖𝙩𝙖𝙨𝙝𝙚𝙚𝙩 : https://lnkd.in/eDyWMuWz

𝙥𝙡𝙚𝙖𝙨𝙚 send email to : ericco188@ericcointernational.com

From attitude to flight control, IMU protects drone flight in all aspects

 

IMU provides key flight data for drones, which can help drones achieve multiple functions such as attitude control, navigation, flight control, etc. The data provided is used by the flight control system to generate control instructions, make quick responses during flight, maintain stability, and achieve precise flight control.

Now we have an IMU ER-MIMU-03Mini, which is small in size, light in weight, and has low power consumption, which is very suitable for drones that pursue long-range and lightweight.

**Small size, easy to install**

The volume is 40*40*42 (with shell)/27*26*34 (without shell), and the weight is 120g (with shell)/80g (without shell). The compact and small design can be easily installed in the drone.

**High-precision sensor**

The built-in gyroscope has a measurement range of 400º/s, bias instability (1σ 25℃) <0.3 º/h, and angular velocity random walk <0.125°/√h. The accelerometer has a measurement range of 30g, bias stability (10s 1σ) <50ug, and bias repeatability is 100ug.

The measured data supports the flight control system to detect the attitude changes of the drone in real time. The data provided by the IMU, combined with other sensor data, helps determine the position and direction of the drone.

**OEM Customization Service**

This IMU adopts modular design, and we also provide OEM customization service.

The IMU can be connected to the user system and obtain data with simple operation, without using the 15-pin plug we provide. At the same time, by removing the bottom plate shell, the size and weight of our product can be greatly reduced.

In summary, IMU is an indispensable component of the UAV flight control system, ensuring that the UAV can fly stably and accurately perform flight missions.

If you are interested in this and would like to know its data sheet.
Check the details (please indicate in the email that the IMU you saw from Blogger)
：https://www.ericcointernational.com/inertial-measurement-units/mems-inertial-measurement-unit/high-precision-navigation-stable-control-mems-imu.html
You can also take a screenshot and send it directly to this email address: ericco188@ericcointernational.com

Is there an error in drilling trajectory control? The north finder installed near the drill bit makes drilling more accurate!

 Directional well technology is one of the most advanced drilling technologies today. Based on actual cases, the main problem of directional wells is the control accuracy of the trajectory. The directional tool will deviate from the trajectory and the measurement error is large. There is also a trajectory prediction error caused by the MWD being a certain distance away from the drill bit.

We have developed a new cylindrical north seeker ER-MNS-09 to address these problems, which can be installed close to the drill bit and directly in the drilling rig’s exploration pipe. It can be used in gyro tools or HDD tools.

**Near-drill-bit installation**

This is an aluminum alloy cylindrical MEMS north finder, 120mm long and only 30mm in diameter, light in weight and with good thermal conductivity. It can be directly installed near the drill bit or in the drill rig probe, and can independently measure the azimuth and attitude angles, more accurately control the well trajectory and reduce errors.

**High-precision north-seeking orientation**

The north-seeking accuracy of this north finder can reach 0.5°secψ(1σ), which can provide more accurate azimuth information. This is crucial for drilling operations that require precise orientation. At the same time, it is not affected by magnetic interference and can also be used in magnetic mining areas.

**Self-alignment and attitude tracking function**

After startup, it can automatically initialize alignment and then automatically determine the true north direction. No manual alignment is required, and the north-seeking time only takes 5 minutes. It can also track and provide attitude information to ensure that the drilling trajectory meets the design requirements.

**Adapt to harsh environment**

During the drilling process, there will be strong impact and vibration. It can resist high impact vibration and ensure stable operation. There is also a high temperature version with an operating temperature range of 5°C~+125°C. The low power consumption design of only 2W ensures stable output under continuous working conditions.

This north finder is designed to be more suitable for applications such as oil mining and drilling, especially in situations where precise control is required.

If you are interested in this and would like to know its data sheet.

For more information, please indicate in the “Ask for a Quote” box at the bottom of the page that you learned about this North Finder from Blogger.
：https://www.ericcointernational.com/north-finders/mems-triaxial-north-seeker-for-mining.html

You can also take a screenshot and send it directly to this email address: ericco188@ericcointernational.com

Integrated multiple sensors, IMU helps drones fly stably

 

Sensors are the core components of drone flight control systems, responsible for collecting data about the drone and its surroundings, such as the drone’s position, speed, attitude, and other information.

Common sensors include gyroscopes, accelerometers, magnetometers (compasses), barometers (altimeters), and GPS modules. Most IMUs only integrate gyroscopes and accelerometers.

We currently have an IMU ER-MIMU-16 that integrates sensors such as gyroscopes, accelerometers, magnetometers, and barometers, making it ideal for drones.

**Integration of multiple high-performance sensors**

Gyroscope: dynamic measurement range ±450º/s, bias instability 0.3º/h, angular velocity random walk 0.15º/√h;

Accelerometer: dynamic measurement range ±30g, bias instability 10ug, bias repeatability 100ug;

The angular velocity and acceleration data provided by the gyroscope and accelerometer can be used to obtain information such as the attitude, speed, and displacement of the drone through system calculation.

Magnetometer: dynamic measurement range ±2.5Gauss, measures the data of the magnetic field to be borne, and provides the magnetic north direction.

Barometer: pressure range 450~1100mbar, by measuring the atmospheric pressure, the data provided can assist the flight control system in navigating the drone to the required height.

The data provided by the IMU can help the flight control system monitor the attitude changes of the drone in real time and achieve stability control.

**Lightweight design, easy to install**

This IMU has a volume of 47×44×14mm, a thickness of only 14mm, and a weight of 50g. It can be easily installed in various types of drones.

**SPI communication interface**

This type of communication method has a high data transmission rate and can perform high-speed data communication. It can also send and receive data at the same time, doubling the efficiency;

If you are interested in this and would like to know its data sheet.

For more information, please indicate in the “Ask for a Quote” box at the bottom of the page that you learned about this North Finder from Blogger.
：https://www.ericcointernational.com/inertial-measurement-units/low-cost-inertial-measurement-unit.html
You can also take a screenshot and send it directly to this email address: ericco188@ericcointernational.com

Not subject to environmental restrictions, MEMS north seekers help various fields achieve high-precision orientation

The north finder can determine the true north direction through the rotation of the earth, and can provide an orientation reference for various activities. It is not limited by weather, location and magnetic field environment conditions, and has the characteristics of high accuracy, high reliability and easy maintenance.

ERICCO’s MEMS north finder ER-MNS-05/05mini can be integrated into various equipment systems that require orientation and alignment. There are many application areas, such as: determining the drilling direction, tunnel construction, direction pointing and tracking of satellite antennas, orientation in surveying and mapping systems, precision platform measurement and control, etc.

This north finder has the following main advantages:

**Small size, high-precision north seeking**

The size of ER-MNS-05 is 70*65*45mm, and the weight is <220g. Currently, ER-MNS-05 Mini is also launched, with a size of 40*40*42mm and a weight of <120g.

The highest north finding accuracy of MEMS north finders on the market is only 1°secψ(1σ) or 0.5°secψ(1σ). But our MEMS north seeker’s north seeking accuracy can reach 0.25°secψ(1σ)! Provide more accurate north information.

It can also provide users with pitch angle and roll angle information, becoming a powerful assistant for engineers.

**OEM customization**

Connect the product to your system and acquire data in just a few simple steps, without using the 15-pin plug provided by our company. By removing the baseplate casing, the size and weight of our products can also be significantly reduced.

**Resistant to harsh mechanical environments**

From the beginning of its design, this north seeker fully considered the complex and changeable working environment. The unique design of the inner platform gives the product extremely high stability and reliability, and it can maintain excellent performance even under harsh conditions of high impact and strong vibration.

**Easy to Repair**

The internal design of this north seeker allows the gyroscope and accelerometer on the PCB to be directly replaced and repaired, making it easier to repair than other north seekers.

If you are interested in this and would like to know its data sheet.
Please inbox me/PM or contact me

For more information, please indicate in the “Ask for a Quote” box at the bottom of the page that you learned about this North Finder from Blogger.
：https://www.ericcointernational.com/inertial-navigation-system/mems-inertial-navigation-system/high-precision-mems-integrated-navigation-system.html
You can also take a screenshot and send it directly to this email address: ericco188@ericcointernational.com

The core component of the flight control system, Let the drone explore unlimited possibilities

 

Sensors are the core components of drone flight control systems, which can help drones achieve multiple functions such as attitude control, navigation, and flight control. The data provided by the IMU is used to generate control instructions and adjust the flight attitude of the drone to maintain stable flight.

ERICCO's IMU ER-MIMU-07 is a nine-axis IMU with a three-axis gyroscope, a three-axis accelerometer, and a three-axis magnetometer.

Gyroscopes and accelerometers provide angular velocity and acceleration data, which can be used to calculate information such as the attitude, speed, and displacement of the drone.

The magnetometer can provide data on the magnetic field to which the drone is subjected and provide the direction of magnetic north.

So what are the advantages of this IMU?

**High-precision sensor**

The built-in gyroscope has a measurement range of 400º/s, bias instability (1σ 25℃) <0.3 º/h, and angular velocity random walk <0.125°/√h. The accelerometer has a measurement range of 30g, bias stability (10s 1σ) <50ug, and bias repeatability of 100ug.

The measured data supports the flight control system to detect the attitude changes of the drone in real time, so as to quickly respond to unreasonable body attitude changes. The data provided by the IMU, combined with other sensor data, helps determine the position and direction of the drone.

**Small and easy to install**

The volume is only 38.6x 44.8 x25.5mm, and the weight is ≤70g. The compact and small design can be easily installed on the fuselage of the drone.

**Better performance, lower price**

This IMU simplifies and reduces design costs while maintaining high performance. Its performance is better than STIM300, but the price is lower, which helps reduce the cost of drones.

For more information, please indicate in the “Ask for a Quote” box at the bottom of the page that you learned about this North Finder from Blogger.
：https://www.ericcointernational.com/inertial-measurement-units/mems-inertial-measurement-unit/er-711-mems-inertial-measurement-unit.html
You can also take a screenshot and send it directly to this email address: ericco188@ericcointernational.com

An IMU designed specifically for drones, with multiple sensors integrated

 

Sensors are the core components of drone flight control systems, which can help drones achieve multiple functions such as attitude control, navigation, flight control, etc.

A basic drone needs to have characteristics such as stability, accuracy, low power consumption, and environmental perception. We currently have an IMU ER-MIMU-16 that perfectly meets these requirements.

**Multiple high-performance sensor integration**

Most IMUs only have built-in gyroscopes and accelerometers. Our IMU integrates sensors such as gyroscopes, accelerometers, magnetometers, and barometers (altimeters), which are very suitable for drones.

Gyroscope: dynamic measurement range: ±450º/s, bias instability :0.3º/h;

Accelerometer: dynamic measurement range: ±30g, bias instability: 10ug;

Gyroscopes and accelerometers provide the angular velocity and acceleration of the drone. These data can be calculated to obtain information such as the drone's attitude, speed, and displacement.

Magnetometer: dynamic measurement range ±2.5Gauss, can measure the strength and direction of the magnetic field, and provide the magnetic north direction.

Barometer: pressure range 450~1100mbar, by measuring atmospheric pressure, the data provided can assist the drone in navigation, rise to the required height, and accurately estimate the ascent and descent speeds.

**Lightweight design, easy to install**

This IMU has a volume of 47×44×14mm, a thickness of only 14mm, and a weight of 50g. It can be easily installed in various drones.

**SPI communication interface**

This type of communication method has a high data transmission rate and can perform high-speed data communication. It can also send and receive data at the same time, doubling the efficiency.

If you are interested in this and would like to know its data and price

For more information, please indicate in the “Ask for a Quote” box at the bottom of the page that you learned about this North Finder from Blogger.：https://www.ericcointernational.com/inertial-measurement-units/low-cost-inertial-measurement-unit.html

You can also take a screenshot and click on the email to ask for detailed information immediately： ericco188@ericcointernational.com 

How does Tactical Fiber Optic Gyroscope Work？

 

Fiber optic gyroscope industry market

With its unique advantages, fiber optic gyroscope has a broad development prospect in the field of precision physical quantity measurement. Therefore, exploring the influence of optical devices and physical environment on the performance of fiber optic gyros and suppressing the relative intensity noise have become the key technologies to realize the high precision fiber optic gyro. With the deepening of research, the integrated fiber gyroscope with high precision and miniaturization will be greatly developed and applied.

Fiber optic gyroscope is one of the mainstream devices in the field of inertia technology at present. With the improvement of technical level, the application scale of fiber optic gyro will continue to expand. As the core component of fiber optic gyros, the market demand will also grow. At present, China's high-end optical fiber ring still needs to be imported, and under the general trend of domestic substitution, the core competitiveness of China's optical fiber ring enterprises and independent research and development capabilities still need to be further enhanced.

At present, the optical fiber ring is mainly used in the military field, but with the expansion of the application of optical fiber gyroscope to the civilian field, the application proportion of optical fiber ring in the civilian field will be further improved.

According to the "2022-2027 China Fiber Optic Gyroscope industry Market Survey and Investment Advice Analysis Report" :

The fiber optic gyroscope is a sensitive element based on the optical fiber coil, and the light emitted by the laser diode propagates along the optical fiber in two directions. The difference of light propagation path determines the angular displacement of the sensitive element. Modern fiber optic gyro is an instrument that can accurately determine the orientation of moving objects. It is an inertial navigation instrument widely used in modern aviation, navigation, aerospace and national defense industries. Its development is of great strategic significance to a country's industry, national defense and other high-tech development.
Fiber optic gyro is a new all-solid-state fiber optic sensor based on Sagnac effect. Fiber optic gyro can be divided into interferometric fiber optic gyros (I-FOG), resonant fiber optic gyro (R-FOG) and stimulated Brillouin scattering fiber optic gyro (B-FOG) according to its working mode. According to its accuracy, fiber optic gyro can be divided into: low-end tactical level, high-end tactical level, navigation level and precision level. Fiber optic gyroscopes can be divided into military and civilian according to their openness. At present, most fiber optic gyros are used in military aspects: fighter and missile attitude, tank navigation, submarine heading measurement, infantry fighting vehicles and other fields. Civil use is mainly automobile and aircraft navigation, bridge surveying, oil drilling and other fields.
Depending on the accuracy of the fiber optic gyroscope, its applications range from strategic weapons and equipment to commercial grade civilian fields. Medium and high-precision fiber optic gyroscopes are mainly used in high-end weapons and equipment fields such as aerospace, while low-cost, low-precision fiber optic gyroscopes are mainly used in oil exploration, agricultural aircraft attitude control, robots and many other civilian fields with low precision requirements. With the development of advanced microelectronics and optoelectronics technologies, such as photoelectric integration and the development of special fiber optics for fiber optic gyros, the miniaturization and low-cost of fiber optic gyros have been accelerated.

Summary

Ericco's fiber optic gyro is mainly a medium precision tactical fiber optic gyro, compared with other manufacturers, low cost, long service life, the price is very dominant, and the application field is also very wide, including two very hot selling ER-FOG-851, ER-FOG-910, you can click the details page for more technical data,

Tactical Grade Fiber Optic Gyro Comparison

If you have any purchase needs, feel free to send the inquiry, or contact us directly: Phone: +86-13992884879
Email: info@ericcointernational.com.

Fiber Optic Gyroscopes for Inertial Navigation

 

1. What is inertial navigation

To understand what inertial navigation is, we first need to break the phrase into two parts, that is, navigation + inertia.
Navigation, in simple terms, solves the problem of getting from one place to another, indicating the direction, typically the compass.
Inertia, originally derived from Newtonian mechanics, refers to the property of an object that maintains its state of motion. It has the function of recording the motion state information of the object.
A simple example is used to illustrate inertial navigation. A child and a friend play a game at the entrance of a room covered with tiles, and walk on the tiles to the other side according to certain rules. One forward, three left, five front, two right... Each of his steps is the length of a floor tile, and people outside the room can get his complete motion trajectory by drawing the corresponding length and route on the paper. He doesn't need to see the room to know the child's position, speed, etc.
The basic principle of inertial navigation and some other types of navigation is pretty much like this: know your initial position, initial orientation (attitude), the direction and direction of movement at each moment, and push forward a little bit. Add these together (corresponding to the mathematical integration operation), and you can just get your orientation, position and other information.
So how to get the current orientation (attitude) and position information of the moving object? You need to use a lot of sensors, in inertial navigation is the use of inertial instruments: accelerometer + gyroscope.
Inertial navigation uses gyroscope and accelerometer to measure the angular velocity and acceleration of the carrier in the inertial reference frame, and integrates and calculates the time to obtain the velocity and relative position, and transforms it into the navigation coordinate system, so that the carrier's current position can be obtained by combining the initial position information.
Inertial navigation is an internal closed loop navigation system, and there is no external data input to correct the error during the carrier movement. Therefore, a single inertial navigation system can only be used for short periods of navigation. For the system running for a long time, it is necessary to periodically correct the internal accumulated error by means of satellite navigation.

2. Gyroscopes in inertial navigation

Inertial navigation technology is widely used in aerospace, navigation satellite, UAV and other fields because of its high concealment and complete autonomous ability to obtain motion information. Especially in the fields of micro-drones and autonomous driving, inertial navigation technology can provide accurate direction and speed information, and can play an irreplaceable role in complex conditions or when other external auxiliary navigation signals fail to play the advantages of autonomous navigation in the environment to achieve reliable attitude and position measurement. As an important component in inertial navigation system, fiber optic gyro plays a decisive role in its navigation ability. At present, there are mainly fiber optic gyroscopes and MEMS gyroscopes on the market. Although the precision of the fiber optic gyroscope is high, its entire system is composed of couplers,
Modulator, optical fiber ring and other discrete components, resulting in large volume, high cost, in the micro UAV, unmanned and other fields can not meet the requirements for its miniaturization and low cost, the application is greatly limited. Although MEMS gyro can achieve miniaturization, its accuracy is low. In addition, it has moving parts, poor resistance to shock and vibration, and is difficult to apply in harsh environments.

 

3 Summary

Ericco's fiber optic gyroscope ER-FOG-851 is specially designed according to the concept of traditional fiber optic gyroscopes, with a small size of 78.5*78.5*35mm; Light weight, less than or equal to 300g; Low power consumption, less than or equal to 4W; Start fast, start time is only 5s; This fiber optic gyroscope easy to operate and easy to use, and is widely used in INS, IMU, positioning system, north finding system, platform stability and other fields.
The accuracy of our ER-FOG-851 is between 0.05 and 0.1, and the 851 is divided into ER-FOG-851D and ER-FOG-851H. The biggest difference between these two fiber optic gyroscope is that the measurement range is different, of course, the accuracy is different, and the measurement range of ER-FOG-851D is wider. The application range is naturally wider than the ER-FOG-851H. Our fiber optic gyroscope can be used in inertial navigation, you can make a detailed choice according to the accuracy value and measurement range, you are welcome to consult us at any time and get more technical data.

 

Features of Fiber Optic Gyroscope

 

1.Characteristics of fiber optic gyro

Compared with electromechanical gyro or laser gyro, fiber optic gyro has the following characteristics:

(1) fewer parts, the instrument is firm and stable, and has a strong ability to resist impact and accelerate movement;
(2) The wound fiber is longer, so that the detection sensitivity and resolution are several orders of magnitude higher than that of the laser gyroscope;
(3) No mechanical transmission parts, no wear problems, so it has a long service life;
(4) Easy to use integrated optical path technology, signal stability, and can be directly digital output, and connected with the computer interface;
(5) By changing the length of the fiber or the number of times the light circulates in the coil, different accuracy can be achieved and a wide dynamic range can be achieved;
(6) The propagation time of the coherent beam is short, so in principle it can be started instantaneously without preheating;
(7) can be used with ring laser gyro to form sensors of various inertial navigation systems, especially sensors of strapdown inertial navigation systems;
(8) Simple structure, low price, small size, light weight.

2.Principle of fiber optic gyroscope

Fiber optic gyro is a fiber optic angular velocity sensor, which is the most promising one among all kinds of fiber optic sensors. Like ring laser gyro, fiber optic gyro has the advantages of no mechanical moving parts, no preheating time, insensitive acceleration, wide dynamic range, digital output and small size. In addition, fiber optic gyro also overcomes the fatal shortcomings of ring laser gyro such as high cost and blocking phenomenon. Therefore, fiber optic gyro has been paid attention to by many countries. Low precision civilian fiber optic gyro has been produced in small batch in Western Europe, it is estimated that in 1994, the sales of fiber optic gyro in the United States gyro market reached 49%, and the cable gyro fell to the second place (accounting for 35% of sales).

The working principle of fiber optic gyroscopes is based on the Sagnac effect. Sagnac effect is a general correlation effect of light propagated in a closed loop optical path rotating relative to inertial space, that is, two beams of light with equal characteristics emitted from the same light source in the same closed optical path propagate in opposite directions, and finally converge to the same detection point.

3.Application of fiber optic gyro

What if a car with a satellite navigation system is driving and suddenly can't receive GPS navigation signals? With the addition of a fiber optic gyroscope, it can form integrated navigation with GDS to achieve automatic driving.

Fiber optic gyro technology is based on mechanical gyro, MEMS gyro, laser gyro upgrade and development, with self-correcting, high sensitivity, long life, low temperature and high temperature resistance, no electromagnetic interference and many other advantages, is the best comprehensive performance of inertial sensors. Due to high cost, it is mainly used in military industry, aerospace and other fields.

Fiber optic gyro technology can be widely used in automotive navigation, high-speed rail track detection, Internet of Things components module, smart grid transmission, consumer electronics and many other fields, experts predict that the potential market size of domestic fiber optic gyro reached 100 billion, the next 5-10 years, most of China's traditional gyro market will be replaced by fiber optic gyro.

4.Summary

Ericco's fiber optic gyro is also a leading level in the world, ER-FOG-851 (≤0.05 ~ 0.1º/h), ER-FOG-910(0.02º/h) are a good choice, because they are medium precision, widely used, if you want to get more technical parameters, please feel free to contact us.