Photoelectric composite test sensor and manufacturing method thereof

A photoelectric composite and sensor technology, which is applied in radio wave measurement systems, re-radiation of electromagnetic waves, devices that measure the time required to move a certain distance, etc. The time information of the specific location of the feature and other issues can achieve the effect of accurate data reference, reducing the test space and overcoming the limitations.

Pending Publication Date: 2019-03-01
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current measurement of the velocity history of the moving object and the time signal of reaching a specific position are independent of each other, and cannot simultaneously reflect the velocity

Method used

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  • Photoelectric composite test sensor and manufacturing method thereof
  • Photoelectric composite test sensor and manufacturing method thereof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0021] Example 1

[0022] A photoelectric composite test sensor. The sensor is composed of an electric probe and a laser speed probe. The electric probe is composed of a conductive wire and a polymer film. The conductive wire is uniformly cured in two layers by an adhesive. Between the hot-melt polymer adhesive films, the number of conductive filaments is evenly distributed on the circumference ≥ 2, and the conductive filaments are exposed outside the polymer adhesive film, and the outer surface of the conductive filaments is coated with insulating paint. The electric probe is evenly coated on the surface of the laser speed measuring probe. The laser speed measuring probe includes an optical fiber probe and a speed measuring fiber. The optical fiber probe is arranged on the top of the speed measuring fiber, and the end surface of the electric probe is higher than the optical fiber. On the end face of the probe, the tail of the speed measuring fiber is connected with the optical m...

Example Embodiment

[0023] Example 2

[0024] A method for preparing a photoelectric composite test sensor. The sensor includes two parts: an electric probe (conductive wire, polymer film) and a laser speed probe (optical probe, speed measuring fiber), such as figure 1 Shown. In the process of sensor production, use special tooling and fixtures to evenly distribute conductive wires (number ≥2 to ensure reliability) through adhesives and cure them between two layers of hot-melt polymer film. The cured electrical The probe has the characteristics of high electrical insulation, corrosion resistance, and good thermal stability. Subsequently, with the special reel and shaping process, the polymer film containing the conductive wire is evenly coated on the surface of the optical fiber probe, and the outer surface of the conductive wire exposed outside the polymer film is coated with insulating paint. In order to avoid the influence of the optical fiber probe on the electrical probe test, make sure that t...

Example Embodiment

[0025] Example 3

[0026] Taking the application of the photoelectric composite test sensor in the detonation loading experiment of the metal flyer as an example, the method of use is further explained.

[0027] Such as figure 2 As shown, the experimental device is composed of a detonator, a booster column, a plane wave lens, an explosive, and a metal flying piece. At a certain distance from the metal flying piece, the photoelectric composite test probe is fixed with a bracket and the probe is facing the metal flying piece. The speed measuring fiber and electric probe lead of the composite probe are respectively connected to the optical measuring system and the electric measuring system. In the detonation experiment, a detonator was used to detonate the plane wave lens, which was transmitted to the cylindrical explosive synchronously, generating a plane detonation wave, and driving the metal flying piece to the composite probe. When the detonator detonates, both the electrical m...

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PUM

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Abstract

The invention discloses a photoelectric composite test sensor and a manufacturing method thereof. The sensor is formed by an electric probe and a laser speed measuring probe. The electric probe is formed by conductive wires and polymer films. The conductive wires are uniformly fixed between the two layers of polymer films. The electric probe uniformly wraps the surface of the laser speed measuringprobe. The laser speed measuring probe comprises an optical fiber probe and a speed measuring optical fiber. The optical fiber probe is arranged on the top of the speed measuring optical fiber. The tail portion of the speed measuring optical fiber is connected to an optical measurement system. The conductive wire tail end of the electric probe is connected to an electrical measuring system. The sensor organically fuses two testing sensors, the speed history of a moving object and the time of arrival at a specific position can be measured synchronously so that a test space is reduced and an accurate data reference is provided for photoelectric joint interpretation.

Description

technical field [0001] The invention relates to the technical field of photoelectric testing, in particular to a photoelectric composite testing sensor and a preparation method thereof. Background technique [0002] All-fiber laser interferometric velocity measurement has the characteristics of non-contact, fast response, high velocity measurement accuracy, and compact structure. It has become an important technical means to accurately obtain the velocity information of the test object. And important applications. It is a technology that uses the Doppler effect of laser to measure the velocity of fluid or solid. When the light source and the moving object move relative to each other, the light scattered back from the moving object will produce a Doppler frequency shift. The magnitude of the quantity is related to the speed of the moving object, the angle between the incident light and the direction of the velocity, and then the light with a certain frequency difference is m...

Claims

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Application Information

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IPC IPC(8): G01P3/66G01P3/68
CPCG01P3/66G01P3/68
Inventor 王晓燕李涛冯姬王为
Owner INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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