A gyro theodolite consists of a gyroscope, theodolite and a tripod.
(1) Gyroscope
The gyroscope is the core of the system, which is mainly composed of gyro sensitive parts, electromagnetic shielding mechanism, suspension wire and guide wire, azimuth rotation servo drive device, damping device, inertial sensitive part locking device, support leveling device, photoelectric angle sensor, power supply, control and display.
The sensitive part of the gyro is equipped with a gyro motor that rotates at a constant speed. The gyro motor is suspended on the gyro frame by a suspension wire, and the power is provided by the guide wire.
The gyro sensitive part locking device is to ensure the safety of the gyro sensitive part in the transportation state, and the inertial sensitive part is fixed with the frame.
The purpose of the damping device is to attenuate the swing amplitude of the sensitive part of the gyro after the release, so that the swing state meets the north-seeking requirements, and finally overcome the northing moment, so that the sensitive part of the gyro is relatively stable in a fixed position.
The azimuth indentation servo drive system can realize the azimuth rotation of the gyro, provide rotational torque and stable transmission.
The supporting and leveling device can realize the mechanical and optical docking of the theodolite and the gyroscope, the leveling of the entire instrument and the installation and fixation of various components.
The photoelectric angle sensor includes a photoelectric angle sensor that detects the swing angle of the inertial sensing part and a grating code disk system that detects the azimuth rotation angle of the gyro.
Electro-magnetic shielding is mainly used to shield the interference of internal and external magnetic fields on gyro north finding.
The control and display part collects and processes signals through sensors, and completes the functions of locking and releasing the sensitive part of the gyro, damping control, azimuth tracking, communication, calculation, sending and displaying true north position.
(2) Theodolite
Theodolite is the bearing extraction device of the system. It is also possible to measure the geographic azimuth or coordinate azimuth of the target by aiming at the target. The theodolite has a self-collimation function, which is convenient for measurement and calibration. Usually theodolite has a serial communication interface, which can realize the serial data communication and command system with the gyroscope.
(3) Tripod
The tripod provides support for the gyro theodolite.
If interested, pls contact us : info@ericcointernational.com
No comments:
Post a Comment