Hard rod control system

A technology of control system and hard rod, which is applied in the direction of electric controller, theodolite, etc., can solve the problems of electromagnetic field interference and poor interchangeability, and achieve the effect of friendly man-machine performance, convenient operation and simple control method
CN103529693AInactive Publication Date: 2014-01-22XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
Publication Date
2014-01-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a hard rod control system, which solves the problem of semiautomatic tracking of a hard rod of a theodolite. The hard rod control system comprises a hard rod adjuster and a speed adjuster which are connected with the hard rod in sequence, wherein the speed adjuster is connected with a controlled instrument; the hard rod adjuster comprises an electric bridge circuit, a first branch and a second branch; both the first branch and the second branch comprise a weak signal differential amplification and balance circuit, a low-pass filter circuit, a zero drift adjusting circuit, a gain adjusting and characteristic adjusting circuit and an amplitude limiting and amplifying circuit which are connected in sequence. The hard rod control system has the advantages of simple control method, convenience in operation, functions of random handle shaking direction, automatic temperature compensation and electromagnetic interference prevention, high sensitivity, high return accuracy and low cost.
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Description

technical field

[0001] The invention belongs to the field of electromechanical integration servo control systems, and in particular relates to a hard rod control system. Background technique

[0002] The hard rod control system is widely used in the remote or ultra-remote control of theodolite to realize the semi-automatic tracking, orientation and capture functions of theodolite to the target. The hard rod actuator (i.e. handle, or joystick) is divided into hard rod and soft rod, and the hard rod has better return accuracy and anti-vibration performance; when the hard rod handle is pulled, the offset vector away from the center position , which reflects the rotation direction and size of the motor, and the speed at which the handle of the hard rod is pulled reflects the rotation speed of the motor. The measurement of the offset is commonly used with infrared optical sensors, Hall sensors, and force-sensitive sensors. The force-sensitive sensor has the characteristics of lo...

Claims

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