Calibrating device and calibrating method for borehole clinometer

Abstract

The invention relates to an angle calibrating device and belongs to the detection field. The calibrating device for a borehole clinometer is characterized by comprising an angle encoder, a sample clamp and a corner drive mechanism, wherein the angle encoder is used as a main calibrating device, the sample clamp is used for fixedly installing the borehole clinometer to be detected, the angle encoder is horizontally arranged and connected with the sample clamp through a bearing rotating shaft base, the two sides of the bearing rotating shaft base are respectively provided with one bearing, the first bearing of one side of the bearing rotating shaft base is connected with the angle encoder, the second bearing of the other side of the bearing rotating shaft base is connected with the sample clamp, the angle encoder and the sample clamp rotate with the same rotating shaft and the same angle, and the corner drive mechanism is used for driving the angle encoder to rotate. According to the angle calibrating device, a cohesion type synchronous main shaft is adopted for connection, the coaxial precision is greatly improved, the stability and the reliability of the device are improved, value loss of output angle displacement transmitting from the corner drive mechanism to the bearing rotating shaft base is basically avoided, the calibration sensitivity is improved greatly, the configuration cost of the device is lowered, and the cost performance is greatly improved.

Description

technical field [0001] The invention relates to a borehole inclinometer, in particular to a calibration device and a calibration method for a borehole inclinometer. Background technique [0002] my country's research on borehole inclinometers started in the early 1980s, starting with the successful development of the prototype of the resistance strain gauge borehole inclinometer by the Nanjing Academy of Hydraulic Sciences, and gradually developed to 1986. The accelerometer-type drilling inclinometer has an allowable error of ±150"; subsequently, the 702 Institute of the Ministry of Aerospace Sciences successfully developed a high-precision drilling inclinometer with a maximum allowable indication error of ±30". Types (principles) of inclinometers for geotechnical testing. In 2008, the Chinese Academy of Geological Sciences developed an intelligent storage type magnetic sensitive borehole inclinometer. During the decades of development, the resolution and stability of the in...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a calibration device and a calibration method for a borehole inclinometer, which solves the problem that the current calibration instruments and calibration methods can only reach selected calibration points for calibration, but cannot be calibrated at any point problem, and the defect that the calibration sensitivity is not high

Images