Closed type displacement sensor calibrating device

A technology of displacement sensor and calibration device, applied in the field of sensor calibration, can solve the problems of difficulty in calibration and affecting the resolution of the sensor, etc.

Active Publication Date: 2012-03-14
TSINGHUA UNIV
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of the medium on the reflection of light, which will affect the resolution of the sensor, the existing commercialized displacement calibration test bench can only be calibrated in the air medium, and ther

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
  • Closed type displacement sensor calibrating device
  • Closed type displacement sensor calibrating device
  • Closed type displacement sensor calibrating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0014] see figure 1 and figure 2 , a closed displacement sensor calibration device, including a power motor 3, the power motor 3 is fixed on the workbench 1 through the motor base 2, the output shaft of the power motor 3 is connected with the left end of the moving shaft 8 through the motor connecting part 4, and drives the moving The shaft 8 rotates, and the moving shaft 8 is supported by a pair of angular contact bearing groups 7. The moving ring 27 of the measured object is installed on the right end of the moving shaft 8, and the moving ring 27 of the measured object is connected with the shrinking ring 26 of the moving ring through interference fit. The positioning and installation of the moving ring 27 of the measured object is realized. The inner shrinkage ring 26 of the moving ring is connected with the positioning sleeve 29 by the ...

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 discloses a closed type displacement sensor calibrating device, which comprises a power electric machine connected with a movable shaft, the movable shaft is supported by an angular contact bearing pack, the movable shaft is equipped with a analyte movable ring, both the analyte movable ring and the pick-up probe are sealed in the sealing cavity provided with a medium inlet and a medium outlet, the end cover of the sealing cavity is connected with a differential head and a probe protective sleeve, the sensor bracket moves in a straight line by arranging one bearing between the differential head measuring rod and the sensor bracket, the pick-up probe and the sensor bracket are relatively fixed, the probe protective sleeve is connected with the pick-up probe, and the tail of the pick-up probe is connected with a sensor post treatment and result display part. The closed type displacement sensor calibrating device provided by the invention has the characteristics of calibrating optical fibre displacement sensors and other displacement sensors in liquid and gas fluid media under static and rotational conditions, so that the calibration environment of the sensor is approximate to the operating ambient of the sensor and then the resolution of the sensor is obtained under the condition of most approximate to the operating ambient.

Description

technical field [0001] The invention relates to the technical field of sensor calibration, in particular to a closed displacement sensor calibration device. Background technique [0002] Optical fiber displacement sensor is a new type of displacement measurement sensor that is in the development period. It measures displacement based on the principle of light reflection. It has the advantages of high measurement accuracy, small probe diameter, and small dependence on the material properties of the measured object. Traditional capacitive and eddy current displacement sensors have wider application prospects. Currently known fiber optic displacement sensors are mostly calibrated using a commercial axial displacement static calibrator or displacement static calibrator. Such devices are generally small in size, light in weight, and easy to carry, and can be used in laboratories or Can be used on site. However, due to the influence of the medium on the reflection of light, whic...

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
IPC IPC(8): G01B11/02
Inventor 刘莹翟静静高志刘向锋林尤滨
Owner TSINGHUA UNIV
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