Current type bidirectional bending sensor and preparation method thereof

A current type, sensor technology, applied in the field of sensors, can solve the problem of inability to measure the degree of bending in both directions, and achieve the effect of wide application, high measurement accuracy, and good measurement effect.

Pending Publication Date: 2019-08-06
呜啦啦(广州)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bending sensor is a sensor used to detect the degree of bending of the measured object. Among the common bending sensors in the market, there are resistive sensors, which measure the degree of bending through the change of res...

Method used

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  • Current type bidirectional bending sensor and preparation method thereof
  • Current type bidirectional bending sensor and preparation method thereof
  • Current type bidirectional bending sensor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Amperometric bidirectional bending sensors such as Figure 1 to Figure 7 As shown, it includes a light emitting component 21, a light receiving component 22 and a flexible light guide element, the refractive index of the light guide element is greater than 1, and the light guide element is an optical fiber in this embodiment. The change of the luminous flux of the light guide element in the bidirectional bending process is monotonous, and the light emitting assembly 21 and the light receiving assembly 22 are respectively fixedly installed on the two ends of the light guide element, the light emitting assembly 21 includes a light emitting element, and the light receiving assembly 22 includes a light emitting element. A receiving element, a light emitting element and a light receiving element are located at both ends of the light guide element, respectively.

[0050] The light-emitting element is an active light-emitting device in which the amount of light emitted is prop...

Embodiment 2

[0088] A new type of light guiding element, such as Figure 8 As shown, the difference between it and Embodiment 1 is that in the unit length section: there are multiple light dissipation grooves 12, and the sum of the inner surface areas of the plurality of light dissipation grooves 12 is not less than 4% of the inner surface area of ​​the whispering wall blocking groove 13. times.

[0089] In a unit length section: a plurality of light dissipation grooves 12 are arranged along the extending direction of the light guide body 11 .

[0090] This embodiment has the following advantages:

[0091] By setting a plurality of light dissipation grooves 12 in different positions, the light guide body 11 can change the luminous flux and eliminate the bending loss oscillation phenomenon through the light dissipation grooves 12 when the light guide body 11 is bent at different positions, so as to improve applicability and facilitate use Effect.

Embodiment 3

[0093] A new type of light guiding element, such as Figure 9 and Figure 10 As shown, the difference between it and Embodiment 2 is that within a unit length section: three light dissipation grooves 12 are provided, and the three light dissipation grooves 12 are arranged along the circumferential direction of the light guide body 11 .

[0094] In the unit length section: there are three whispering wall blocking grooves 13, the sum of the inner surface areas of the three light escape grooves 12 is not less than four times the sum of the inner surface areas of multiple whispering wall blocking grooves 13, and the three light escape grooves The loose grooves are arranged along the circumferential direction of the light guide body 11 .

[0095] This embodiment has the following advantages:

[0096] By setting a plurality of light dissipation grooves 12 and whispering wall blocking grooves 13 in different positions, the light guide body 11 can change the luminous flux and elimin...

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PUM

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Abstract

The invention discloses a current type bidirectional bending sensor and a preparation method thereof in the technical field of sensors, thereby solving a problem that the bidirectional bending degreecan not be measured. The current type bidirectional bending sensor comprises a light emission assembly, a light receiving assembly, and a flexible light guide element. The luminous flux change of thelight guide element has monotony in the bidirectional bending process. The light emission assembly and the light receiving assembly are installed at the two ends of the light guide element respectively and fixedly. The light emission assembly includes a light-emitting element. The light receiving assembly includes a light receiving element. The light-emitting element and the light receiving element are arranged at the two ends of the light guide element. The luminous flux of the light guide element corresponds to the bidirectional bending degree one by one. The light guide element bends with bending of a measured object, so that the luminous flux of the light guide element changes; light after luminous flux changing is received by the light receiving element; and then the light receiving element coverts the light into a current signal, thereby realizing the function of detection of the bidirectional bending degree of the measured object.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a current-type bidirectional bending sensor and a preparation method thereof. Background technique [0002] A sensor is a detection device that can collect the measured information and convert it into an electrical signal or other required form of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. . The bending sensor is a sensor used to detect the degree of bending of the measured object. Among the common bending sensors in the market, there are resistive sensors, which measure the degree of bending through the change of resistance of the resistive sensor during the bending process, but the traditional resistance sensor The measurement scheme can only measure the degree of bending in one direction, but cannot measure the degree of bending in two directions. Contents of the in...

Claims

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Application Information

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IPC IPC(8): G01B11/24G01D5/14
CPCG01B11/24G01D5/14
Inventor 于维佳李思彭鑫潘羽秦臻
Owner 呜啦啦(广州)科技有限公司
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