Unlock instant, AI-driven research and patent intelligence for your innovation.

Laser interferometer system

A laser interferometer and interferometer technology, applied in optics, instruments, optical components, etc., can solve the problem of lack of traceability of sensitivity, and achieve the effects of easy on-site operation, strong integrity, and simple structure design.

Active Publication Date: 2015-01-28
CHINA EARTHQUAKE DISASTER PREVENTION CENT
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The principle of sensitivity calibration relying on the built-in self-calibration device of the instrument is to use an external expansion device to generate an inclination angle on the bottom plate of the instrument. The inclination angle is calculated by calculating the expansion coefficient of the device and the displacement measured by the inclinometer to obtain the angular sensitivity at that time. From this method, it can be concluded that the sensitivity is not traceable

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
  • Laser interferometer system
  • Laser interferometer system
  • Laser interferometer system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Such as figure 1 , 2 As shown, the laser interferometer system of the present invention is used to calibrate the sensitivity of the quartz horizontal pendulum inclinometer, which includes an interferometer bracket 1, an interference light receiving device 2, a laser 3, a signal processing device 4, a PC 5 and an environment measuring device 6 .

[0027] The interferometer support 1 includes a base plate 11 and a roller 12; the base plate 11 is arranged horizontally, and has a triangular plate structure with three corners extending outward to form a connecting arm 111; the rolling shaft 12 is fixed on the connecting arm 111 Ends.

[0028] The interference light receiving device 2 is installed on the interferometer support 1, and it includes an assembly seat 21, a polarizing beam splitting prism 22, a reflector 23, a non-polarizing beam splitting prism 24, a Wollaston prism 25, a lens 26, a four-quadrant detector 27, An optical fiber connector 28 and a signal processin...

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 present invention relates to a laser interferometer system, which comprises an interferometer bracket, an interfering light receiving device, a laser, a signal processing device and a PC machine, wherein the interfering light receiving device comprises an assembly base, a polarization light splitting prism, a reflection mirror, a non-polarizing light splitting prism, a wollaston prism, a lens, a detector, an optical fiber connector and a signal processing device connector, the laser is connected with the optical fiber connector through an optical fiber cable, the interfering light receiving device integrates a pretreatment module, an AD acquisition module, a correction module and a USB insert-connection module, the pretreatment module, the AD acquisition module, the correction module and the USB insert-connection module are electrically connected, the pretreatment module is electrically connected with the signal processing device connector through a data line, and the USB insert-connection module is connected with the PC machine through a USB data line. The laser interferometer system has characteristics of simple and compact structure design, easy moving, remote capability and strong integrity. With the laser interferometer system, the on-site calibration on the sensitivity of the quartz horizontal pendulum clinometer working in the earthquake monitoring field for a long time can be achieved, such that the traceability problem of measurement of the quartz horizontal pendulum clinometer can be solved.

Description

technical field [0001] The invention relates to the technical field of precision measurement, in particular to a laser interferometer system. Background technique [0002] The pendulum tiltmeter is an instrument used for long-term fixed-point monitoring of the vertical deformation of the earth in the field of seismic monitoring. The instrument is installed on the underground bedrock of the civil air defense cave with constant temperature and humidity or professionally excavated chambers. The instrument amplifies the tiny ground inclination angle through the double hanging wire suspension system, and converts it into displacement signal output through the transducer sensor. Through long-term fixed-point observation and data processing, monitor the solid tide of the earth at a fixed position, obtain the daily variation, monthly variation and annual variation of the earth's deformation, and use long-term monitoring to find anomalies in changes and analyze the characteristics of...

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): G01C25/00
CPCG01C25/00G02B17/08
Inventor 卢海燕
Owner CHINA EARTHQUAKE DISASTER PREVENTION CENT