Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Metal detector and method for metal detector to compensate detection coil thereof

A metal detector and detection coil technology, used in instruments, measuring devices, scientific instruments, etc., can solve the problems of detection coil failure, transmission coil inhomogeneity, differential pressure signal not being 0, etc., so as to improve detection sensitivity, improve The effect of the ability to detect weak signals

Pending Publication Date: 2018-03-23
永康市卓图工贸有限公司
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the production process, the gap caused by the installation of the transmitting coil and the inhomogeneity of the transmitting coil may cause the differential pressure signal to be non-zero, or even very large, which will cause the detection coil itself to fail

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Metal detector and method for metal detector to compensate detection coil thereof
  • Metal detector and method for metal detector to compensate detection coil thereof
  • Metal detector and method for metal detector to compensate detection coil thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] figure 1 It is a kind of metal detector of the embodiment of the present invention, figure 2 It is the best embodiment of the detection coil of a metal detector in the present invention, and the metal detector includes: a housing 1, a power supply 2, a controller 3, a magnetic field transmitting unit 4, a magnetic field receiving unit 5, and an alarm 6. The casing 1 forms an internal accommodation space 10 for accommodating the power supply 2, the controller 3, the magnetic field transmitting unit 4, the magnetic field receiving unit 5, and the alarm 6 in the internal accommodation space 10, and the power supply 2 uses To supply power to the controller 3, the magnetic field transmitting unit 4, the magnetic field receiving power supply 5, and the alarm 6, the controller 3 is used to control the magnetic field transmitting unit 4, the magnetic field receiving...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a metal detector and a method for the metal detector to compensate the detection coil thereof. The compensation method comprises the steps that S1 a magnetic field emission unitgenerates an alternating current magnetic field; S2 a magnetic field receiving unit determines whether metal is involved in the alternating current magnetic field, and if so, a first receiving coil generates different sensing intensities according to different metals; S3 an alarm emits alarm signals of different frequencies according to different sensing intensities; and S4 if no metal is involved in the alternating current magnetic field, whether the alternating magnetic field is uniform is determined, and if the alternating magnetic field is not uniform, a fine compensation switch is turnedon to adjust the magnitude of the magnetic field intensity generated by a second receiving coil. According to the invention, the double-compensation method can compensate deviation generated by a coil production and installation process and electronic components, so as to improve the detection sensitivity of the metal detector and the ability to detect weak signals.

Description

technical field [0001] The invention belongs to the technical field of security inspection equipment, in particular to a metal detector and a method for compensating the detection coil of the metal detector. Background technique [0002] At present, metal detectors can detect hidden metal objects, and have been widely used in military, security inspection, mining, industry, daily life, etc. Metal detectors use the principle of electromagnetic induction, and are equipped with controllers, transmitting coils, and receiving coils inside. The controller controls the transmitting coil to generate a periodically changing alternating magnetic field, and the alternating magnetic field generates a vortex electric field around the metal detector. If the metal detector is close to the metal, an eddy current is formed on the receiving coil of the vortex electric field, thereby being detected inside the metal detector. The controller is sensed, so as to control the signal of alarm remind...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01V3/11
CPCG01V3/10
Inventor 陈靓悦
Owner 永康市卓图工贸有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com