CN1865952A - Intelligent storable industrial metal detector - Google Patents
Intelligent storable industrial metal detector Download PDFInfo
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- CN1865952A CN1865952A CN 200510025905 CN200510025905A CN1865952A CN 1865952 A CN1865952 A CN 1865952A CN 200510025905 CN200510025905 CN 200510025905 CN 200510025905 A CN200510025905 A CN 200510025905A CN 1865952 A CN1865952 A CN 1865952A
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- signal
- storable
- intelligent
- magnetic field
- control unit
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Abstract
The disclosed intelligent storable industrial metal detector comprises: a signal emission part controlled by a MCU to oscillate and generate stable high-frequency signal, a band-pass filter line to obtain the high-frequency reference signal, a power amplification circuit to send information for antenna, a detection field with a stable ultrasonic magnetic field, a receiving loop to receive symmetrical signal and difference amplify to obtain the current signal contained magnetic field information, a low-pass filter network to change the detecting output signal into one varied as metal object effect, and a A/D sampling circuit to send the circuit to the MCU. This invention has well detection effect.
Description
[technical field]
The present invention relates to the detector in a kind of nondestructive electromagnetic detection technique field, particularly a kind of intelligent storable industrial metal detector.
[background technology]
China's utility model patent instructions (Granted publication number: CN2484561Y) disclose a kind of metal detector, the electromagnetic sensing assembly is arranged at the top in housing, under it circuit board is arranged, its plate medial side has switch and pilot lamp, under the circuit board battery is arranged, battery is bonnet down, board circuit has the sampling operational amplifier to connect the electromagnetic sensing assembly, gun stocks, reference voltage, comparer, the latter connects alarm, this detector is to ferromagnetic object detection sensitivity height, report to the police accurately, be fit to do security, be used for airport, the station, harbour, stadium (shop), the masses get together and need to survey metal object, the quality size, the place of position.
Above-mentioned metal detector has many characteristics that all have metalloid owing to test product in actual detected, as electric conductivity and magnetic conductivity.Such characteristic makes test product to make not contain any metallic impurity, also can exert an influence to original Distribution of Magnetic Field when it enters surveyed area, and then produces the misoperation signal.
[summary of the invention]
The purpose of this invention is to provide a kind of intelligent storable industrial metal detector, mainly solve the above-mentioned defective of original metal detector, thereby reach good detection effect.
For solving the problems of the technologies described above, the present invention is achieved in that
A kind of intelligent storable industrial metal detector comprises detectable signal radiating portion and detectable signal receiving unit, it is characterized in that:
(1) this detectable signal radiating portion produces stable high-frequency signal by microprogram control unit control generator system, obtain high-frequency reference signal by the bandpass filtering circuit, provide information source through power amplification circuit to emitting antenna, set up stable ultrasonic magnetic field at surveyed area;
(2) accept the loop and stablize the ultrasound wave electromagnetic signal, after differential amplification, just obtained comprising the current signal of changes of magnetic field information, that is: Δ I ∝ Δ by accepting wireless flat being around in that obtains symmetry; Extract the benchmark information source from power amplifying part, obtain the standard information source by the phase shift orthopedic systems under microprogram control unit control, differential amplifying signal is carried out phase sensitive detection: the signal that the output signal of detection changes through arriving magnetic field behind the low-pass filter network and being subjected to factor affecting such as metal object; This signal is delivered to microprogram control unit by the A/D sample circuit, and microprogram control unit is analyzed this digital signal, distinguishes metallic impurity signal and test product signal.
Above-mentioned intelligent storable industrial metal detector is characterized in that: this microprogram control unit sends control signal by the analysis to digital signal, makes differential part and repel device to act accordingly, and the test product that will contain metallic impurity is got rid of.
Above-mentioned intelligent storable industrial metal detector is characterized in that: high detector has LCD display part and the keyboard of realizing person-machine dialogue and digital parameters set-up function.
[description of drawings]
Fig. 1 is a structural representation of the present invention.
[embodiment]
See also Fig. 1, it is the structural representation of intelligent storable industrial metal detector of the present invention.As shown in the figure: microprogram control unit (MCU) control generator (OSC) system produces stable high-frequency signal.Obtain high-frequency reference signal by the bandpass filtering circuit, provide information source to emitting antenna, set up stable ultrasonic magnetic field at surveyed area through power amplification circuit.
Accept the loop and stablize the ultrasound wave electromagnetic signal, after differential amplification, just obtained comprising the current signal of changes of magnetic field information, that is: Δ I ∝ Δ by accepting wireless flat being around in that obtains symmetry
Extract the benchmark information source from power amplifying part, obtain the standard information source by the phase shift orthopedic systems under MCU control.Differential amplifying signal is carried out phase sensitive detection.
The signal that the output signal of detection changes through arriving magnetic field behind the low-pass filter network and being subjected to factor affecting such as metal object.This signal is delivered to MCU by the A/D sample circuit, and MCU analyzes this digital signal, distinguishes metallic impurity signal and test product signal.Judge at last.If find to have metallic impurity feature, MCU to send control signal from signal differential part and repulsion device are acted accordingly, the test product that will contain metallic impurity is got rid of, and reaches the purpose that metallic foreign body detects.
LCD display part and keyboard are as people-machine interface function.The complete operation personnel are to the observation of machine works state with to the setting and the control of running parameter and action.
The problem that can solve is in actual applications:
Metal detector of the present invention uses special-purpose filter network and digital signal processing algorithm to test knowledge according to light and finds out product effect signal and metallic impurity signal difference, thereby reaches good detection effect.
May have multiple different test product at the user, the present invention has the storage memory function.
The present invention can be widely used in industries such as food, medicine clothes, toy, plastics, rubber and make metallic foreign body detection usefulness.
Being preferred embodiment of the present invention only in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (3)
1, a kind of intelligent storable industrial metal detector comprises detectable signal radiating portion and detectable signal receiving unit, it is characterized in that:
(1) this detectable signal radiating portion produces stable high-frequency signal by microprogram control unit control generator system, obtain high-frequency reference signal by the bandpass filtering circuit, provide information source through power amplification circuit to emitting antenna, set up stable ultrasonic magnetic field at surveyed area;
(2) accept the loop and stablize the ultrasound wave electromagnetic signal, after differential amplification, just obtained comprising the current signal of changes of magnetic field information, that is: Δ I ∝ Δ by accepting wireless flat being around in that obtains symmetry; Extract the benchmark information source from power amplifying part, obtain the standard information source, differential amplifying signal is carried out phase sensitive detection by the phase shift orthopedic systems under microprogram control unit control; The signal that the output signal of detection changes through arriving magnetic field behind the low-pass filter network and being subjected to factor affecting such as metal object; This signal is delivered to microprogram control unit by the A/D sample circuit, and microprogram control unit is analyzed this digital signal, distinguishes metallic impurity signal and test product signal.
2, intelligent storable industrial metal detector according to claim 1, it is characterized in that: this microprogram control unit sends control signal by the analysis to digital signal, make differential part and repel device to act accordingly, the test product that will contain metallic impurity is got rid of.
3, intelligent storable industrial metal detector according to claim 1 and 2 is characterized in that: high detector has the LCD display part and the keyboard of realization people-machine dialogue and digital parameters set-up function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100259055A CN1865952B (en) | 2005-05-18 | 2005-05-18 | Intelligent storable industrial metal detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100259055A CN1865952B (en) | 2005-05-18 | 2005-05-18 | Intelligent storable industrial metal detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1865952A true CN1865952A (en) | 2006-11-22 |
| CN1865952B CN1865952B (en) | 2010-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100259055A Expired - Fee Related CN1865952B (en) | 2005-05-18 | 2005-05-18 | Intelligent storable industrial metal detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1865952B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327484B (en) * | 2008-04-17 | 2011-09-07 | 常州煜明电子有限公司 | Metallic separator |
| CN101650442B (en) * | 2009-09-15 | 2012-06-13 | 合肥安大电子检测技术有限公司 | Intelligent impurity metal detecting system and detecting method thereof |
| CN102565185A (en) * | 2010-12-27 | 2012-07-11 | 上海太易检测技术有限公司 | Automatic phase tracking information processing method and device for use in metal foreign matter detector |
| CN107192989A (en) * | 2017-06-13 | 2017-09-22 | 电子科技大学 | A kind of microwave radio receiver |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6454281A (en) * | 1987-08-25 | 1989-03-01 | Anritsu Corp | Metal detecting apparatus |
| CN2694270Y (en) * | 2004-03-31 | 2005-04-20 | 中国电子科技集团公司第五十研究所 | Hand-held resoluble metal detector circuit |
| CN100439904C (en) * | 2004-10-28 | 2008-12-03 | 上海交通大学 | Intelligent metal detector |
-
2005
- 2005-05-18 CN CN2005100259055A patent/CN1865952B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101327484B (en) * | 2008-04-17 | 2011-09-07 | 常州煜明电子有限公司 | Metallic separator |
| CN101650442B (en) * | 2009-09-15 | 2012-06-13 | 合肥安大电子检测技术有限公司 | Intelligent impurity metal detecting system and detecting method thereof |
| CN102565185A (en) * | 2010-12-27 | 2012-07-11 | 上海太易检测技术有限公司 | Automatic phase tracking information processing method and device for use in metal foreign matter detector |
| CN102565185B (en) * | 2010-12-27 | 2015-03-04 | 上海太易检测技术有限公司 | Automatic phase tracking information processing method for using in metal foreign matter detector |
| CN107192989A (en) * | 2017-06-13 | 2017-09-22 | 电子科技大学 | A kind of microwave radio receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1865952B (en) | 2010-10-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI GAOJING DETECTION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGHAI GAOJING METAL DETECTION INSTRUMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 200433, room 101-111, building A, building 128, No. 11 Xiang Yin Road, Shanghai, Yangpu District Patentee after: Shanghai Gaojing Metal Detector Instrument Co., Ltd. Address before: 200090, building 8, building 2716, No. 4, Pingliang Road, Shanghai, Yangpu District Patentee before: Shanghai Gaojing Metal Detection Instrument Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20190518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |