Calibrating device and calibrating method for borehole clinometer

A calibration device and technology for inclinometers, applied in the field of borehole inclinometers, can solve problems such as low calibration sensitivity and inability to calibrate at any point, so as to improve coaxial accuracy, enhance reliability, and reduce radial beating effect

Active Publication Date: 2014-01-01
SHANGHAI INST OF MEASUREMENT & TESTING TECH
View PDF9 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Calibrating device and calibrating method for borehole clinometer
  • Calibrating device and calibrating method for borehole clinometer
  • Calibrating device and calibrating method for borehole clinometer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Below in conjunction with specific embodiment, further illustrate the present invention.

[0032] In view of the low sensitivity in traceability and the improvement of the accuracy of the borehole inclinometer, it is hoped that the traceability device can be improved to: 1) The measurement expansion of the indication error of the calibrated borehole inclinometer (the highest precision grade sample) is not large. The degree of certainty is: U=10″, k=2; 2) The adjustable range of the turntable angle: ±30°.

[0033] Therefore, a new traceability device is designed, and the structure refers to the attached figure 2 In the shown embodiment, the angle driving mechanism 1 is a set of mechanical devices that can provide accurate micro-angle positioning. The driving mechanism outputs a small amount of angle change (forward and reverse) that can drive the angle of the rotating shaft. Using the coaxial dial 2 The principle of redundant degrees of freedom can effectively unload t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/02
Inventor 马建敏祝逸庆孙佳媛
Owner SHANGHAI INST OF MEASUREMENT & TESTING TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap