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Metal detection method based on voltage regulation circuit application design

A metal detection and voltage-stabilizing circuit technology is applied in the field of electromagnetic wave detection to achieve the effects of convenient use, fast response speed and simple steps

Inactive Publication Date: 2016-12-14
成都市思卡利科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in a conductor, the average net current is zero

Method used

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  • Metal detection method based on voltage regulation circuit application design

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Effect test

Embodiment 1

[0038] A metal detection method based on the application design of the voltage stabilizing circuit, which can supply power based on the voltage stabilizing power supply system, detect metal objects through the technology of magnetoelectric conversion, and can complete the detection of metal objects with a compact design. The whole method has simple steps. Easy to use, suitable for metal detection in various places, such as figure 1 As shown, it is specially set as the following setting method: use the metal detection system composed of the stabilized power supply system and the detection system to detect metal, including the following specific steps:

[0039] 1) The transmitter 2 forms a detection wave signal, and transmits the detection wave signal through the coil for signal transmission in the transmission coil system;

[0040] 2) When the detection wave signal is in contact with a metal object, a magnetic field is generated near the metal object due to eddy current action;...

Embodiment 2

[0045] This embodiment is further optimized on the basis of the above-mentioned embodiments, further to better realize the present invention, such as figure 1 As shown, the following setting method is adopted in particular: it also includes the step of supplying the operating voltage for the transmitter 2:

[0046] A.1) The filtered output voltage will provide a voltage reference through a reference voltage circuit mainly composed of a resistor R1 and a controllable precision voltage regulator D1;

[0047] A.2) The sampling circuit mainly composed of resistor R2, resistor R3, and potentiometer W1 samples from the output filter end to obtain the sampling voltage;

[0048] A.3) The sampling voltage uses the comparison amplifier circuit mainly composed of triode Q1, triode Q2, integrated operational amplifier U1, and capacitor C1 combined with the voltage reference provided by the reference voltage circuit to perform voltage comparison;

[0049] A.4) When the sampling voltage is...

Embodiment 3

[0053] This embodiment is further optimized on the basis of any of the above embodiments, such as figure 1 As shown, further in order to better realize the present invention, the following arrangement is adopted in particular: the metal detection system is provided with an interconnected stabilized voltage power supply system and a detection system, and the detection system is provided with a transmitting coil system, a transmitting device 2, timing circuit 6, receiver 5 and sound system, the transmitting coil system is connected with the stabilized power supply system, transmitter 2 and receiver 5 respectively, the transmitter 2 is connected to the timing circuit 6, and the transmitting coil system The system includes two transmitting coils, and one end of the two transmitting coils is connected to the transmitter 2 and the receiver 5 respectively, and the other end of the two transmitting coils is grounded. The ring diameter of the transmitting coil is 180mm, and the transmit...

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Abstract

The invention discloses a metal detection method based on voltage regulation circuit application design. Metal is detected using a metal detection system composed of a regulated power supply system and a detection system. The method comprises the steps as follows: a transmitter produces a detection wave signal, and transmits the detection wave signal out through a coil for signal transmitting in a transmitting coil system; when contacting a metal object, the detection wave signal produces a magnetic field near the metal object due to the eddy current effect; when the detection wave signal ends, eddy current continues to flow in the coil for signal transmitting, and an induced voltage is produced in the coil for signal transmitting in the transmitting coil system under the action of the magneto-electric effect; and a coil for signal receiving transmits the induced voltage to a receiver for rectification and amplification, and then, a sound system makes a prompt sound. Power supply can be carried out based on the regulated power supply system, and metal objects can be detected by use of a magnetoelectricity conversion technology. The whole method comprises simple steps, and is easy to use.

Description

technical field [0001] The invention relates to the technical field of electromagnetic wave detection, in particular to a metal detection method based on the application design of a voltage stabilizing circuit. Background technique [0002] Metal is a material that has luster (that is, strongly reflects visible light), is malleable, and is easy to conduct electricity and heat. The above properties of metals are all related to the free electrons contained in the metal crystals. In nature, most metals exist in a compound state, and a few metals such as gold, platinum, silver, and bismuth exist in a free state. Metal minerals are mostly oxides and sulfides. Other forms are chlorides, sulfates, carbonates and silicates. The connection between metals is a metal bond, so the connection can be re-established by changing the position at will, which is also the reason why metals have good ductility. Metal elements usually only show positive valence in compounds. Relatively large...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/12G01V3/11
CPCG01V3/12G01V3/10
Inventor 姜迪蛟
Owner 成都市思卡利科技有限公司