Resistance strain sensor based on 3D printing and its manufacturing method

A resistance strain type, 3D printing technology, applied in the field of sensors, can solve the problems of poor process versatility, low degree of automation, low material utilization rate, etc., and achieve the effect of simplifying the manufacturing process and time, high degree of automation, and reducing production costs.

Active Publication Date: 2019-09-20
梁婵
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the problems of low automation, poor process versatility, low material utilization rate and high production cost in the prior art manufacturing resistance strain sensors, and provide a resistance strain sensor based on 3D printing processing and its manufacturing method

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
  • Resistance strain sensor based on 3D printing and its manufacturing method
  • Resistance strain sensor based on 3D printing and its manufacturing method
  • Resistance strain sensor based on 3D printing and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] like figure 1 The shown 3D printing-based resistance strain weighing load cell includes front strain gauge 2 (namely strain gauges S1 and S2) and reverse surface strain gauge 3 (namely strain gauges S3 and S4), zero point output compensation resistor Ra1 and Ra2, zero output temperature compensation resistors Rb1 and Rb2, and sensitivity temperature compensation resistors Rm1 and Rm2.

[0045] combine figure 2 , the specific manufacturing method is:

[0046] S201. Using a mechanical or chemical method to remove oil stains and residual particles to increase the binding force on the surface of the elastic element 1 . Specifically, the elastic element 1 is made of 2Cr13 material, the surface of the elastic element 1 is polished and cleaned, ultrasonically cleaned for about 15 minutes, and oil and residual particles on the surface are removed, and then dried.

[0047] Elastic elements need to adopt metal elastic elements.

[0048] The model is established according to ...

Embodiment 2

[0066] Embodiment 2 is a resistance strain type pressure sensor based on direct 3D printing processing, such as Figure 9 As shown, the schematic diagram of the structure is shown in Figure 9 As shown, 1 is an elastic element, 7 is a strain gauge group, and the strain gauge group 7 includes four strain gauges S1, S2, S3 and S4. The arrangement and structure of the four strain gauges are as follows Image 6 Shown, where O, P, Q, S are conductive contacts.

[0067] The manufacturing method of the resistance strain type pressure sensor of embodiment 2, comprises the following steps:

[0068] S701, elastic element 1 is made of 2024-T4 aluminum alloy material, the surface has been anodized, so the surface of the elastic element has an insulating base of metal oxide. After ultrasonic cleaning for about 15 minutes, the surface oil and residual particles are removed and then dried.

[0069] S702, use the air jet printing printer according to the following Image 6 The patterns of...

Embodiment 3

[0073] The difference from Embodiment 1 is that the inkjet printing method is used to print the sensitive grid, conductive lines and conductive contacts.

[0074] As a preferred embodiment, during air jet printing or ink jet printing, the object to be printed (elastic element) can be preheated, and the heating temperature range is controlled at 30-200 degrees to improve printing accuracy.

[0075] In addition, the temperature of the heat preservation in the incubator can be set to 150°C for 4 hours. There is no strict restriction here, and it can be adjusted according to production needs and actual conditions.

[0076] As a preferred embodiment, an air jet printer is used to print the sensitive grid, and an inkjet printer is used to print the conductive lines and conductive contacts.

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 the technical field of sensors, in particular to a resistance strain sensor based on 3D printing processing and a manufacturing method thereof. The manufacturing method includes the following steps: preparing an insulating substrate in the strain region of the elastic element; printing a resistance-sensitive material onto the insulating On the substrate, the printing head moves relative to the elastic element to print out the sensitive grid of the target pattern; print out the conductive wires and conductive contacts connecting the sensitive grid to form a strain gauge. The invention directly prints the resistance-sensitive material onto the insulating substrate covering the surface of the elastic element to make the strain gauge, and at the same time, the conductive wire and the conductive contact are also printed on the elastic element at the same time. The manufacturing method of the sensor has high automation, wide application range and low cost. low and high sensor stability.

Description

technical field [0001] The present invention generally relates to the technical field of sensors, specifically a resistance strain sensor based on 3D printing processing and a manufacturing method thereof. Background technique [0002] In the prior art, the method for manufacturing resistance strain sensor is: pasting or sputtering depositing resistance strain sensitive elements (generally called strain gauges) on elastic elements of a certain shape. When the mechanical quantity acts on the elastic element, the elastic element deforms, and the resistance value of the strain gauge changes accordingly, and then the conversion circuit converts the resistance value change into a voltage change output, and the mechanical quantity can be known according to the voltage change . At present, common resistance strain sensing elements include metal foil resistance strain gauges, semiconductor strain gauges, and strain gauges made by directly sputtering and depositing thin film resisto...

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 & AuthorityPatents(China)
IPC IPC(8): G01L1/22B22F3/00B22F10/10B22F10/38
CPCG01L1/2262G01L1/2281B22F3/00
Inventor梁婵
Owner梁婵