A digital differential tension sensor based on a linear array CCD and a tension detection method using the sensor

A tension sensor and tension detection technology, applied in the field of sensors, can solve the problems of reduced service life of the sensor, weak ability to resist transient impact, damage of the sensor, etc., and achieve the effect of simple driving sequence, prolonging the service life and small dark current

Pending Publication Date: 2018-09-11
WEIFANG MEDICAL UNIVERSITY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Tension sensors mainly include strain type, piezoresistive type and piezoelectric type, etc. The sensitive elements of these sensors are in direct contact with the mechanical elastic elements, and their ability to resist transient impact is weak, and the sensor is

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
  • A digital differential tension sensor based on a linear array CCD and a tension detection method using the sensor
  • A digital differential tension sensor based on a linear array CCD and a tension detection method using the sensor
  • A digital differential tension sensor based on a linear array CCD and a tension detection method using the sensor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] With reference to the drawings, the digital differential tension sensor based on linear CCD of the present invention includes a cantilever beam 1 made of elastic material. The inner end of the cantilever beam 1 is fixed, the front and back sides of the middle part are respectively provided with mirror reflection areas, and the outer ends are free to receive force. end. A first laser transmitter 2 and a second laser transmitter 3 are symmetrically arranged above and below the inner end of the cantilever beam 1. The optical paths of the two laser transmitters are arranged obliquely and facing the specular reflection area, and the outer end of the cantilever beam 1 is symmetrically arranged above and below to sense laser The first linear CCD element 4 and the second linear CCD element 5 that reflect light, and the signal output ends of the two linear CCD elements are electrically connected to a control circuit 6. The specular reflection area is used to reflect laser light. ...

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

PropertyMeasurementUnit
Wavelengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to a digital differential tension sensor based on a linear array CCD and a tension detection method using the sensor. The sensor includes a suspension beam made from elastic material. The inner end of the suspension beam is fixed. The middle of the right side and the middle of the back side of the suspension beam are each provided with a mirror reflection region. The outer end of the suspension beam is a free force bearing end. A first laser emitter and a second laser emitter are symmetrically arranged above and below the inner end of the suspension beam. Optical paths ofthe two laser emitters are inclined and face the mirror reflection regions. A first linear array CCD element and a second linear array CCD element that can sense laser reflected light are symmetrically arranged above and below the outer end of the suspension beam. Signal output ends of the two linear array CCD elements are electrically connected with a control circuit. Through differential calculation, the detection method obtains a relationship between tension and pixel offset of the linear array CCD elements to obtain the tension. The digital differential tension sensor is simple in structure and is high in detection precision, linearity and sensitivity, is convenient and reliable, and realizes digital measurement of micro-tension.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a digital differential tension sensor based on a linear array CCD and a tension detection method using the sensor. Background technique [0002] Tension sensors mainly include strain type, piezoresistive type and piezoelectric type, etc. The sensitive elements of these sensors are in direct contact with mechanical elastic elements, and their ability to resist transient impact is weak, and the sensor is often damaged due to overload, which reduces the sensor's performance. service life. The tension sensor data is read as an analog signal, and then converted into a digital signal by a digital-to-analog converter, which makes the measurement cumbersome and increases the cost. [0003] Light and magnetism are commonly used as measurement media in non-contact measurement technology, and photosensitive devices and magnetic sensitive devices are used for detection components. In order ...

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): G01L1/24
CPCG01L1/24
Inventor 马晨阳孙雪张敏刘静王慧如邱召运
Owner WEIFANG MEDICAL UNIVERSITY
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