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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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  • 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 history characteristics of the same measured object and the time information of its movement to a specific position, which in turn affects the accuracy of the joint photoelectric interpretation of the moving object.

Method used

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

Examples

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Effect test

Embodiment 1

[0022] A photoelectric composite test sensor, the sensor is composed of an electric probe and a laser speed measuring probe, the electric probe is composed of a conductive wire and a polymer film, and the conductive wire is uniformly cured on two layers with an adhesive Between the hot-melt polymer film, the number of conductive wires is evenly distributed on the circumference of ≥2, and the part of the conductive thread exposed outside the polymer film is coated with insulating varnish. The electric probe is uniformly coated on the surface of the laser speed measuring probe, the laser speed measuring probe includes 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, and the end face of the electric probe is higher than the optical fiber The end face of the probe, the tail of the speed-measuring optical fiber is connected to the optical measurement system, and the tail end of the conduc...

Embodiment 2

[0024] A kind of preparation method of photoelectric compound test sensor, sensor comprises electrical probe (conductive wire, polymer film) and laser velocity measuring probe (optical probe, velocity measuring optical fiber) two parts, such as figure 1 shown. In the process of sensor production, special fixtures are used to evenly distribute and solidify conductive wires (number ≥ 2, to ensure reliability) between two layers of hot-melt polymer films through adhesives. The probe has the characteristics of high electrical insulation, corrosion resistance, and good thermal stability. Subsequently, with the help of a special reel and shaping process, the polymer film containing the conductive thread is evenly coated on the surface of the optical fiber probe, and the outer surface of the conductive thread exposed outside the polymer film is coated with insulating varnish. In order to prevent the optical fiber probe from affecting the test of the electrical probe, ensure that the...

Embodiment 3

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

[0027] Such as figure 2 As shown, the experimental device is composed of a detonator, a booster charge, a plane wave lens, explosives, and a metal flyer. At a certain distance from the metal flyer, the photoelectric composite test probe is fixed with a bracket, and the probe is facing the metal flyer. The speed-measuring optical fiber of the composite probe and the lead wire of the electrical probe are respectively connected to the optical measurement system and the electrical measurement system. In the detonation experiment, the plane wave lens is detonated by the detonator, which is transmitted to the cylindrical explosive synchronously to generate a plane detonation wave, which drives the metal flyer to move towards the composite probe. When the detonator is detonated, both the electrical measuremen...

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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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