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Non-contact sensor for object detection

A non-contact, sensor technology, applied in the field of detection sensors, can solve the problems of low detection accuracy, sensitivity to medium composition and dry humidity, and inability to detect non-metallic objects, etc., to achieve good confidentiality, high detection accuracy, and change Easy to upgrade effects

Active Publication Date: 2013-05-01
嘉纳尔科技(北京)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1) The detection accuracy is low, and it is more sensitive to the composition and dry humidity of the medium;
[0006] 2) It can only detect metal objects, not non-metal objects;
[0007] 3) It can only reflect the size of the analog detection signal, but cannot detect and recognize the shape of the object

Method used

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  • Non-contact sensor for object detection
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Embodiment Construction

[0029] In order to achieve the purpose of the embodiment of the present invention, the technical solution is clearer, and the specific embodiments will be described in detail below in conjunction with the accompanying drawings:

[0030] The invention is a non-contact object detection sensor, which has the same detection ability for objects of different shapes and sizes. It has the advantages of high detection accuracy, strong anti-interference ability, combination with man-machine interface display components, and visual graphics.

[0031] The invention is a sensor for non-contact object detection, which has two circuit units, and each circuit unit specifically includes: a triode, a grounding resistor, an inductor, a flat capacitor and a parallel resistor; It is connected to the negative pole of the power supply; the collector of the triode is connected to the positive pole of the power supply through an inductor; the base of the triode is connected to the collector via a plat...

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PUM

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Abstract

The invention provides a non-contact sensor for object detection. The non-contact sensor for the object detection comprises a sensor main body, wherein the sensor main body is provided with a circuit board; the circuit board is provided with two circuit units; each circuit unit particularly comprises a triode, a grounding resistor, an inductor, a plate capacitor and a shunt resistor; an emitter of the triode is connected with a negative electrode of a power supply through the grounding resistor; a collector of the triode is connected with a positive electrode of the power supply through the inductor; a base of the triode is connected with the collector through the plate capacitor; both ends of the shunt resistor are connected with both ends of the plate capacitor. The non-contact sensor can provide the high detection accuracy, and has the same detectivity for metal and nonmetal objects with different sizes.

Description

technical field [0001] The invention relates to a sensor for detection, in particular to a sensor for non-contact object detection. Background technique [0002] With the development of science and technology, the application of various detection equipment is becoming more and more extensive, such as security detectors for security checks, flame detectors for fire warning and so on. Among them, the non-contact detection sensor means that the interior of the object can be detected without touching the object, and the typical metal detector is a metal detector. [0003] A metal detector is a kind of metal detector that is specially used to detect components made of metal. It can also be used to detect wires hidden in walls, water pipes and cables buried in the ground, and other metal objects buried in the ground. [0004] However, existing metal detectors have the following drawbacks: [0005] 1) The detection accuracy is low, and it is more sensitive to the composition and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/08
Inventor 东野长岐黄德志金文涛
Owner 嘉纳尔科技(北京)有限公司
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