Anti-corrosion tension transducer and its manufacturing method and tension measurement system

A transducer and anti-corrosion technology, applied in the direction of measuring force, measuring devices, instruments, etc., can solve problems such as transducer damage, achieve light weight, improve reliability and durability, and improve the quality of experimental teaching

Active Publication Date: 2019-09-27
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the existing technology, solve the problem of how to solve the anti-corrosion problem of the tension transducer used in medical experimental research in the prior art, and how to ensure or even improve the detection accuracy of biological signals under the condition of anti-corrosion, The invention provides an anti-corrosion tension transducer and its manufacturing method and tension measuring system, especially provides an anti-corrosion double-hole cantilever beam type tension transducer and its manufacturing method and tension measuring system. Double-hole cantilever beam + high-precision resistance strain gauge + active amplification technology" design scheme, and a detachable measuring rod with an anti-wetting silicone rubber ring, which can effectively prevent the entry of corrosive solutions and completely solve various problems in medical experiments. Transducer damage caused by solution corrosion

Method used

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  • Anti-corrosion tension transducer and its manufacturing method and tension measurement system
  • Anti-corrosion tension transducer and its manufacturing method and tension measurement system
  • Anti-corrosion tension transducer and its manufacturing method and tension measurement system

Examples

Experimental program
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Effect test

Embodiment 1

[0052] The purpose of the first embodiment is to provide a double-hole cantilever beam type tension transducer.

[0053] In order to achieve the above objective, the present invention adopts the following technical solution:

[0054] Such as Figure 5 As shown,

[0055] A double-hole cantilever beam type tension transducer, including:

[0056] Two-hole cantilever beam, the two ends are measuring end and fixed end respectively, two sets of strain gauges are attached to both sides of the double-hole cantilever beam, the outer wall of the double-hole cantilever beam and the thinnest part of the two holes, the strain gauges are connected to each other to form a Wheatstone Bridge, such as Image 6 Shown is a schematic diagram of the principle of the Wheatstone bridge, which expands and contracts with the strain of the measured object, so that the metal foil inside the strain gauge is stretched or compressed. When the metal foil is stretched or contracted, its resistance will change accord...

Embodiment 2

[0059] The purpose of the second embodiment is to provide an anti-corrosion tension transducer.

[0060] In order to achieve the above objective, the present invention adopts the following technical solution:

[0061] Such as Figure 7 As shown,

[0062] An anti-corrosion tension transducer, including:

[0063] A closed shell with a containment space. A double-hole cantilever beam 3 is arranged inside the shell. The two ends are the measuring end and the fixed end, respectively connected to the detachable measuring rod 12 and the fixed rod 1, which extend out of the shell. Two sets of strain gauges are 4 points Attached to both sides of the double-hole cantilever beam 3, strain gauges 4 are connected to each other to form a Wheatstone bridge. The double-hole cantilever beam 3 is embedded and sealed with an amplifying device 6 which is connected to the output signal line 8.

[0064] In the preferred mode of Example 1 and Example 2, the two sets of strain gauges 4 adopt foil-type metal r...

Embodiment 3

[0081] The purpose of the third embodiment is to provide a method for manufacturing an anti-corrosion dual-hole cantilever beam tension transducer.

[0082] In order to achieve the above objective, the present invention adopts the following technical solution:

[0083] A method for manufacturing an anti-corrosion double-hole cantilever beam type tension transducer includes:

[0084] Step (1): Detect the performance quality of the two sets of strain gauges, select four foil-type metal resistance strain gauges with a resistance deviation of less than 1Ω; in this embodiment, the strain gauges act as sensing and conducting in the force measuring transducer The important role of equipment strain. The foil type BF1K-3AA high-precision resistance strain gauge (1000Ω) is selected, which has the characteristics of high accuracy, good linearity, good repeatability, and small temperature drift, which can greatly improve the detection accuracy of biological signals. The performance and quality...

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Abstract

The invention provides an anti-corrosion tonotransducer and a manufacture method thereof and a tension measuring system. The tension measuring system comprises a closed shell with containing space, the inner portion of the shell is provided with a two-hole cantilever beam, the two ends of the shell are respectively connected with a dismountable measuring rod and fixing rod extending out of the shell, two sets of strain gages respectively sticks to the two sides of the two-hole cantilever beam, and the two-hole cantilever beam is embedded in an amplifying device and sealed. A technology of 'active amplification, two-hole cantilever beam and high-precision strain gage' is adopted, the dismountable measuring rod with an anti-infiltration silicone rubber ring is designed, thereby the sensitivity, long-term stability, linearity, repeatability and other properties of the tonotransducer are greatly improved, the detection precision of biological signals is significantly improved, so that experimental data is more accurate and reliable, and the experimental success rate and teaching effect are further improved.

Description

Technical field [0001] The invention belongs to the technical field of tension transducers, and relates to an anti-corrosion tension transducer and a manufacturing method thereof and a tension measurement system, in particular to an anti-corrosion double-hole cantilever beam type tension transducer and a manufacturing method thereof And tension measurement system. Background technique [0002] At present, the tension transducer used in the experimental research of basic medicine in our country generally adopts a single cantilever beam and a single-sided patch of 2×2MM 2 Semiconductor strain gauge technology, such as figure 1 As shown, the piece is processed into two horizontal (R1, R4), two vertical (R2, R3) four grid wires to form a Wheatstone bridge. figure 2 Shown: R1 and R4 are used for measurement, R2 and R3 are used for temperature compensation (due to the high temperature coefficient of semiconductor materials, two resistors are made on the same silicon chip for temperatur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/22
Inventor 刘萍王彩静李肖岩徐红岩陈融马剑峰
Owner SHANDONG UNIV
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