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Anti-corrosion tonotransducer and manufacture method thereof and tension measuring system

A manufacturing method and transducer technology, applied in the direction of measuring force, measuring device, instrument, etc., can solve problems such as transducer damage, achieve light weight, improve reliability and durability, and improve the effect of experimental teaching quality

Active Publication Date: 2018-08-03
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 tonotransducer and manufacture method thereof and tension measuring system

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Embodiment 1

[0052] The purpose of Embodiment 1 is to provide a double-hole cantilever beam tension transducer.

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

[0054] Such as Figure 5 as shown,

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

[0056] Double-hole cantilever beam, the two ends are the measuring end and the 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 double hole, the strain gauges are connected to each other to form a Wheatstone bridge, such as Figure 6 Shown is a schematic diagram of the principle of the Wheatstone bridge, so that it expands and contracts with the strain of the measured object, so that the metal foil inside the strain gauge is stretched or compressed. The electrical resistance of the metal foil changes as it stretches or sh...

Embodiment 2

[0059] The purpose of Embodiment 2 is to provide an anti-corrosion tension transducer.

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

[0061] Such as Figure 7 as shown,

[0062] A corrosion-resistant tension transducer comprising:

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

[0064] In the preferred mode of embodiment 1 and embodiment 2, the str...

Embodiment 3

[0081] The purpose of Embodiment 3 is to provide a method for manufacturing a corrosion-resistant double-hole cantilever beam tension transducer.

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

[0083] A method for manufacturing a corrosion-resistant double-hole cantilever beam type tension transducer, comprising:

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

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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 its manufacturing method and a tension measuring system, in particular to an anti-corrosion double-hole cantilever beam type tension transducer and its manufacturing method and tension measurement system. Background technique [0002] At present, the tension transducers used in the experimental research of basic medicine in my country generally use a single cantilever beam and a single-sided sticker of a 2×2MM 2 Semiconductor strain gauge technology, such as figure 1 As shown, the film is processed into two horizontal (R1, R4) and two vertical (R2, R3) four grid wires to form a Wheatstone bridge. The working principle is as follows figure 2 As 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 used for...

Claims

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Application Information

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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