Title:
NOVEL METAL DETECTOR
Document Type and Number:
WIPO Patent Application WO/2019/178861
Kind Code:
A1
Abstract:
A novel metal detector, comprising an LC open loop resonant circuit, a rectifier and filter circuit, an amplifier circuit, an MCU circuit, a power supply circuit, and an alarm circuit. The MCU circuit is connected to the amplifier circuit, the rectifier and filter circuit, the power supply circuit, and the alarm circuit separately; the LC open loop resonant circuit is connected to the amplifier circuit and the rectifier and filter circuit separately. By using the principle of most of metals affecting the distribution of the magnetic lines of a magnetic field, most of nonmetals not affecting the magnetic field, and inducing the change of the magnetic field by using a coil inductor, resonance is formed together with the template waves emitted by the MCU circuit to achieve the effect of resonance at a selected frequency, and after a resonance signal is amplified, the MCU circuit sends an alarm signal. The novel metal detector is simple to operate, has a compact structure, is highly practical, and can be used as a metal detector in daily life and work.
Inventors:
HAN XINGFENG (CN)
Application Number:
PCT/CN2018/080301
Publication Date:
September 26, 2019
Filing Date:
March 23, 2018
Export Citation:
Assignee:
SHENZHEN HIGHFENG TECH CO LTD (CN)
International Classes:
G01V3/00
Domestic Patent References:
| WO2014172751A1 | 2014-10-30 |
Foreign References:
| CN105549090A | 2016-05-04 | |||
| CN105223620A | 2016-01-06 | |||
| CN101163362A | 2008-04-16 | |||
| CN104749639A | 2015-07-01 | |||
| JP2016099218A | 2016-05-30 |
Attorney, Agent or Firm:
SZ KINDWALF INTELLECTUAL PROPERTY FIRM (CN)
Download PDF: