CN207881743U - Metal double sheet detection circuit and metal-working plant - Google Patents
Metal double sheet detection circuit and metal-working plant Download PDFInfo
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- CN207881743U CN207881743U CN201820285358.7U CN201820285358U CN207881743U CN 207881743 U CN207881743 U CN 207881743U CN 201820285358 U CN201820285358 U CN 201820285358U CN 207881743 U CN207881743 U CN 207881743U
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Abstract
The utility model is related to a kind of metal double sheet detection circuit and metal-working plants, belong to metal double sheet detection technique field.Metal double sheet detection circuit, including control module, signal drive circuit and detection circuit.Control module is connected by the coil transmissions end of signal drive circuit and detection circuit, and the coil receiving terminal of detection circuit is connect with control module, wherein for metallic plate to be detected to be arranged between coil transmissions end and coil receiving terminal.Signal drive circuit is used to emit signal according to the pulse signal driving coil transmitting terminal that control module is sent.Control module based on coil receiving terminal for that will sense that detection signal corresponding with transmitting signal is obtained for indicating whether metallic plate includes the testing result of multiple.This metal double sheet detection circuit can detect whether metallic plate is multiple, improve working efficiency.
Description
Technical field
The utility model is related to metal double sheet detection technique fields, in particular to a kind of metal double sheet detection circuit
And metal-working plant.
Background technology
The detection of metal double sheet is to need whether the metallic plate processed is two or two or more to detect, so as to subsequently into
Row is smoothly processed, and existing metal double sheet detection is mainly manually detected, and inefficiency is of high cost.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of metal double sheet detection circuit, gold can be detected automatically
Belong to plate whether be double sheet or multiple, improve the intelligent level and stability of entire circuit.
What the embodiments of the present invention were realized in：
It includes control module, signal drive circuit and detection electricity that the utility model, which provides a kind of metal double sheet detection circuit,
Road.Control module by the coil transmissions end of signal drive circuit and detection circuit connect, the coil receiving terminal of detection circuit with
Control module connects, wherein for metallic plate to be detected to be arranged between coil transmissions end and coil receiving terminal.Signal driving electricity
Road is used to emit signal according to the pulse signal driving coil transmitting terminal that control module is sent.Control module will be for that will be based on coil
Receiving terminal senses that detection signal corresponding with transmitting signal is obtained for indicating whether metallic plate includes the testing result of multiple.
In the utility model preferred embodiment, above-mentioned metal double sheet detection circuit further includes modulate circuit, and coil connects
Receiving end is connect by modulate circuit with control module.Modulate circuit is used to that detection signal to be amplified and/or be filtered, and is adjusted
Signal is managed, control module is based on conditioned signal and obtains testing result.
In the utility model preferred embodiment, above-mentioned modulate circuit includes the first amplifying circuit and the first filtered electrical
Road, coil receiving terminal are connect with the first amplifying circuit, and the first amplifying circuit is connect with the first filter circuit, the first filter circuit with
Control module connects.First amplifying circuit is transferred to the first filter circuit for that will detect after signal is amplified.First filtering
Circuit, the signal for transmitting the first amplifying circuit are sent to control module after being filtered.
In the utility model preferred embodiment, above-mentioned modulate circuit further includes the second amplifying circuit, the first filtered electrical
Road is connect by the second amplifying circuit with control module.The signal that second amplifying circuit is used to transmit the first filter circuit carries out
Control module is sent to after amplification.
In the utility model preferred embodiment, above-mentioned first amplifying circuit includes：Metal double sheet detection circuit is also wrapped
Display circuit is included, display circuit is connect with control module, for showing testing result.
In the utility model preferred embodiment, above-mentioned metal double sheet detection circuit further includes comparator, the second amplification
The first input end of circuit and comparator connects, and the output end of comparator is connect with control module, the second output terminal of comparator
It is connect with normal voltage.Comparator is for the voltage of first input end to be compared with the voltage of second output terminal, first
When the voltage of input terminal is more than or equal to the voltage of the second input terminal, the first signal is exported, is less than the in the voltage of first input end
When the voltage of two input terminals, second signal is exported.
In the utility model preferred embodiment, above-mentioned signal drive circuit include first switch pipe, second switch pipe,
The first end of third switching tube and the 4th switching tube, first switch pipe is connect with the first end of second switch pipe, first switch pipe
Second end connect with the second end of second switch pipe, the third end of first switch pipe is connect with the second end of third switching tube,
The third end of first switch pipe is also connect by a current-limiting resistance with the first power supply, the first end of third switching tube and the first power supply
Connection, the third end of third switching tube connect with the side at coil transmissions end, the first end of first switch pipe also with control module
Connection, the third end of second switch pipe are connect with the second end of the 4th switching tube, and the third end of second switch pipe is also through a current limliting
Resistance eutral grounding, the first end ground connection of the 4th switching tube, the third end of the 4th switching tube are connect with the side at coil transmissions end, coil
The other side of transmitting terminal is grounded.
In the utility model preferred embodiment, above-mentioned signal drive circuit further includes that the first storage capacitance and second are deposited
Storing up electricity is held.The first storage capacitance and the second storage capacitance ground connection that first power supply is also concatenated.
In the utility model preferred embodiment, above-mentioned metal double sheet detection circuit further includes alarm, alarm with
Control module connects.Control module is additionally operable in testing result exception, and control alarm carries out alarm.
A kind of metal-working plant, including wireless transport module and above-mentioned metal double sheet detection circuit, control module and nothing
Line transmission module connects, and control module is additionally operable to testing result being sent to peripheral equipment through wireless transport module.
The advantageous effect of the utility model embodiment is：Metal double sheet detection circuit includes control module, signal driving electricity
Road and detection circuit.The pulse signal that control module is sent passes through the driving of signal drive circuit, passes through the coil of detection circuit
Transmitting terminal emits signal, and transmitting signal obtains detection signal after metallic plate, and the coil of detection signal detected circuit connects
After receiving end receives, be sent to control module, control module handles signal, to transmitting signal and detect difference between signal into
Row compares, so that it is determined that going out whether metallic plate to be measured is individual or multiple, obtains testing result.This metal double sheet detection circuit
Can detect automatically metallic plate whether be double sheet or multiple, improve working efficiency.
Other feature and advantage of the utility model will illustrate in subsequent specification, also, partly from specification
It becomes apparent, or is understood by implementing the utility model embodiment.The purpose of this utility model and other advantages can
It realizes and obtains by specifically noted structure in the specification, claims and attached drawing write.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.Shown in attached drawing, the above and other purpose, feature and advantage of the utility model will more
Clearly.Identical reference numeral indicates identical part in whole attached drawings.Do not painted by actual size equal proportion scaling deliberately
Attached drawing processed, it is preferred that emphasis is show the purport of the utility model.
Fig. 1 shows the structure diagram for the metal double sheet detection circuit that the utility model first embodiment provides；
Fig. 2 shows a kind of circuit diagrams for signal drive circuit that the utility model first embodiment provides；
Fig. 3 shows a kind of circuit diagram for modulate circuit that the utility model first embodiment provides；
Fig. 4 shows the structure diagram for the metal double sheet detection circuit that the utility model second embodiment provides.
Icon：110- control modules；120- signal drive circuits；130- detection circuits；140- modulate circuits；150- is shown
Circuit；160- alarms；170- power modules；121- first switch pipes；122- second switch pipes；123- third switching tubes；
The 4th switching tubes of 124-；The first storage capacitances of 125-；The second storage capacitances of 126-；The first amplifying circuits of 142-；143- first is filtered
Wave circuit；The second amplifying circuits of 144-；The second filter circuits of 141-；145- third filter circuits；210- comparators.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.In addition, term " the
One ", " second " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term is " even
Connect ", " coupling " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
First embodiment
Fig. 1 is the structure diagram of metal double sheet detection circuit 130 provided in this embodiment.Referring to Fig. 1, the present embodiment
In, metal double sheet detection circuit 130 includes control module 110, signal drive circuit 120, detection circuit 130, modulate circuit
140, display circuit 150, alarm 160 and power module 170.
Control module 110 is connect by signal drive circuit 120 with the coil transmissions end of detection circuit 130, detection circuit
130 coil receiving terminal is connect with control module 110, and optionally, coil receiving terminal passes through modulate circuit 140 and control module
110 connections.Wherein, for metallic plate to be detected to be arranged between coil transmissions end and coil receiving terminal.
Control module 110 is a kind of IC chip, the processing capacity with signal.Above-mentioned control module 110 can
To be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit
(Network Processor, NP) etc.；Can also be digital signal processor (Digital Signal Processing,
DSP), application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate
Array (Field Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or crystal
Pipe logical device, discrete hardware components.General processor can be microprocessor or the control module 110 can also be any
Conventional processor etc..In this present embodiment, optionally, control module 110 can be the microcontroller of model ATMEGA328.
Wherein, above-mentioned control module 110 is to be integrated with the control module 110 of AD converter, so as to the mould that will be received
Quasi- signal is converted to digital signal, to improve the stability of signal.Further, it is to be appreciated that the AD converter can not also
It is integrated in control module 110, but is used as the independent component being connect with control module 110, therefore can not be by this
The embodiment for implementing to exemplify is understood as being limitations of the present invention.
Fig. 2 is a kind of circuit diagram of signal drive circuit 120 provided in this embodiment.Also referring to Fig. 1 and Fig. 2, originally
In embodiment, signal drive circuit 120 is used to emit letter according to the pulse signal driving coil transmitting terminal that control module 110 is sent
Number, signal drive circuit 120 includes first switch pipe 121, second switch pipe 122, third switching tube 123 and the 4th switching tube
124。
The first end of first switch pipe 121 is connect with the first end of second switch pipe 122, and the second of first switch pipe 121
End is connect with the second end of second switch pipe 122, and the third end of first switch pipe 121 connects with the second end of third switching tube 123
It connects, the third end of first switch pipe 121 is also connect by a current-limiting resistance with the first power supply, the first end of third switching tube 123
It being connect with the first power supply, the third end of third switching tube 123 is connect with the side at coil transmissions end, and the of first switch pipe 121
One end is also connect with control module 110, and the third end of second switch pipe 122 is connect with the second end of the 4th switching tube 124, and second
The third end of switching tube 122 is also grounded through a current-limiting resistance, the first end ground connection of the 4th switching tube 124, the 4th switching tube 124
Third end connect with the side at coil transmissions end, the other side at coil transmissions end ground connection.
In this present embodiment, it is preferable that the first switch pipe 121 is NPN type triode Q1, and second switch pipe 122 is PNP
Type triode Q2, third switching tube 123 are NPN type triode Q3, and the 4th switching tube 124 is PNP type triode Q4.Triode Q1
Base stage connect and connect with second source by a current-limiting resistance R39, the emitter of triode Q1 with the base stage of triode Q2
Connect with the emitter of triode Q2, the emitter of triode Q1 also by being connect with control module 110 after a current-limiting resistance,
The collector of triode Q1 is connect with the base stage of triode Q4, and the collector of triode Q1 also passes through a current-limiting resistance and the first electricity
Source connect, the emitter of triode Q2 by connect with control module 110 after a current-limiting resistance, the collector of triode Q2 and
The base stage of triode Q3 connects, and the base stage of triode Q2 is also grounded through a current-limiting resistance, and the base stage of triode Q2 is also through a capacitance
Ground connection, the emitter of triode Q4 are connect with the first power supply, and the collector of triode Q4 is also sent out by a current-limiting resistance and coil
The side connection at end is penetrated, the collector of the base earth of triode Q3, triode Q3 is connect with the side at coil transmissions end, coil
The other side of transmitting terminal is grounded.
Control module 110 sends out preset instructions, emits signal by 120 driving coil transmitting terminal of signal drive circuit.When
When preset instructions are the first signal, triode Q1 and triode Q3 conducting, i.e. NPN type are connected, the not work of signal drive circuit 120
Make, when preset instructions are second signal, triode Q2 and triode Q4 conductings, i.e. positive-negative-positive are connected, signal drive circuit 120
Work.
Wherein, preset instructions can be a pulse signal, such as high level or low level.Low level indicates that voltage value is low
In the voltage of the first numerical value, the first numerical value is a common numerical value in industry.For example, for generally for TTL circuits, first
Numerical value is 0.0V-0.4V, and for cmos circuit, the first numerical value is 0.0-0.1V.In the embodiment of the present invention, it is preferable that
First numerical value is 0V, i.e., low level is 0V.High level indicates that voltage value is higher than the voltage of second value, and second value is in industry
A common numerical value.For example, for generally for TTL circuits, second value 2.4V-5.0V, and cmos circuit is come
It says, second value 4.99-5.0V.In the embodiment of the present invention, it is preferable that second value 5V, i.e. high level are 5V.
In the present embodiment, when 110 input low level of control module, i.e. when the first numerical value is 0V, triode Q1 and three poles
Pipe Q3 conductings, i.e. NPN type are connected, and signal drive circuit 120 does not work；When 110 input high level of control module, i.e., the second number
When value is 5V, triode Q2 and triode Q4 conductings, i.e. positive-negative-positive are connected, and signal drive circuit 120 works so that coil transmissions
End transmitting signal.
Signal drive circuit 120 further includes the first storage capacitance 125 and the second storage capacitance 126, and the first power supply is also through string
First storage capacitance 125 of connection and the second storage capacitance 126 ground connection, so as to energy storage.
Control module 110 based on coil receiving terminal for that will sense that detection signal corresponding with transmitting signal is used for
Indicating whether metallic plate includes the testing result of multiple, modulate circuit 140 is used to that detection signal to be amplified and/or be filtered,
Conditioned signal is obtained, control module 110 is based on conditioned signal and obtains testing result.
Fig. 3 is a kind of circuit diagram of modulate circuit 140 provided in this embodiment.Also referring to Fig. 1 and Fig. 3, this implementation
In example, modulate circuit 140 includes the first amplifying circuit 142 and the first filter circuit 143, and coil receiving terminal and the first amplification are electric
Road 142 connects, and the first amplifying circuit 142 is connect with the first filter circuit 143, and the first filter circuit 143 connects with control module 110
It connects.First amplifying circuit 142 is transferred to the first filter circuit 143, the first filter circuit for that will detect after signal is amplified
143, the signal for transmitting the first amplifying circuit 142 is sent to control module 110 after being filtered.
Modulate circuit 140 further includes the second amplifying circuit 144, the first filter circuit 143 by the second amplifying circuit 144 with
Control module 110 connects, and the second amplifying circuit 144 after being amplified the signal that the first filter circuit 143 transmits for sending
To control module 110.
First amplifying circuit 142 includes the first amplifier, and the first input end of the first amplifier is connect with coil receiving terminal,
Second input end grounding of the first amplifier, the output end of the first amplifier are connect with the first filter circuit 143, the first amplifier
First input end also connect with its output end.
First filter circuit 143 is CR filter circuits.Second amplifying circuit 144 includes the second amplifier, the second amplifier
The second input terminal connect with the output end of the first filter circuit 143, the first input end of the first amplifier ground connection, the second amplification
The output end of device is connect with control module 110, and the second input terminal of the second amplifier is also connect with its output end.
Modulate circuit 140 further includes the second filter circuit 141 and third filter circuit 145, and coil receiving terminal and second filter
The input terminal of wave circuit 141 connects, and the output end of the second filter circuit 141 is connect with the first input end of the first amplifier, the
The output end of one amplifying circuit 142 is connect with the input terminal of the first filter circuit 143, the output end of the first filter circuit 143 with
Second input terminal of the second amplifying circuit 144 connects, and the output end of the second amplifying circuit 144 is defeated with third filter circuit 145
Enter end connection, the output end of third filter circuit 145 is connect with control module 110.
Second filter circuit 141, for filtering out the clutter in the detection signal that coil receiving terminal receives.Further.
In this present embodiment, preferably the second filter circuit 141 includes：First resistor and the first capacitance.One end of first capacitance and line
Enclose receiving terminal connection, the other end ground connection of the first capacitance, first resistor is in parallel with the first capacitance and one end and the first amplifier
First input end connects, the other end ground connection of first resistor.
By above-mentioned modulate circuit 140, the detection signal that coil receiving terminal receives is filtered and enhanced processing, with
Just control module 110 can receive conditioned signal, and handle conditioned signal and transmitting signal, to obtain detection knot
Fruit.
Display circuit 150 is connect with control module 110, and display circuit 150 is for showing testing result.That is, passing through display
Circuit 150 show testing result, so as to user get information about metallic plate be individual, double sheet or multiple.It is appreciated that
It is：Display circuit 150 can be played sound, screen display or testing result is sent to user terminal etc..
In the present embodiment, display circuit 150 includes display device, PNP type triode Q5 and PNP type triode Q6, three poles
The base stage of pipe Q5 and the base stage of triode Q6 are connect with control module 110, the transmitting of the emitter and triode Q6 of triode Q5
Pole is coupled with display device, and the collector of triode Q5 and the collector of triode Q6 are connect with second source.It is filled by showing
It sets, directly displays the number of metallic plate.
Display device is displayed for data, operation interface etc., so that user carries out data in the operation interface
Input, and show the required statement etc. generated.Wherein, the display device can be current touch screen common on the market,
Display screen etc. shows equipment.
Alarm 160 is connect with control module 110, and the pulse signal that control module 110 is sent passes through signal drive circuit
120 driving emits signal by the coil transmitting terminal of detection circuit 130, and transmitting signal is detected after metallic plate
Signal is sent to control module 110, control module 110 after the coil receiving terminal reception of detection signal detected circuit 130
Handle signal, to transmitting signal and detect signal between difference be compared, so that it is determined that go out metallic plate to be measured whether be
Individual or multiple.
Control module 110 is additionally operable in testing result exception, and control alarm 160 carries out alarm.If detection
For individual, then alarm 160 does not work；If be detected as two or multiple, alarm 160 work, prompt alarm.Yu Benshi
It applies in example, alarm 160 can be audible-visual annunciator 160, can also be buzzer, can also be warning lamp, or by buzzing
The warning device of device and warning lamp composition.It is not further qualified herein.
Power module 170 for module 110 in order to control, signal drive circuit 120, detection circuit 130, modulate circuit 140,
Display circuit 150 and alarm 160 provide power supply, can work normally.In this present embodiment, power module 170 can be
The power module 170 being often used at present, such as DC-DC power modules 170.
Second embodiment
The present embodiment also provides a kind of metal double sheet detection circuit 130, and the present embodiment is the technical side in embodiment 1
The improvement carried out on the basis of case, the technical solution that embodiment 1 describes are equally applicable to the present embodiment, and embodiment 1 has disclosed
Technical solution be not repeated to describe, difference lies in metal double sheet detection circuits in the present embodiment with embodiment 1 for the present embodiment
130 further include comparator 210.
Fig. 4 is the structure diagram of metal double sheet detection circuit 130 provided in this embodiment.Referring to Fig. 4, the present embodiment
In, metal double sheet detection circuit 130 includes control module 110, signal drive circuit 120, detection circuit 130, modulate circuit
140, display circuit 150, alarm 160, comparator 210 and power module 170.
Coil receiving terminal is connect by comparing device 210 with control module 110.Coil receiving terminal and the first of comparator 210
Input terminal connects, and the output end of comparator 210 is connect with control module 110, the second output terminal and normal voltage of comparator 210
Connection, voltage when normal voltage is the detection of individual metallic plate.Comparator 210 is used for the voltage of first input end and second
The voltage of output end is compared, when the voltage of first input end is more than or equal to the voltage of the second input terminal, the first letter of output
Number, the first signal is individual signal of metallic plate, when the voltage of first input end is less than the voltage of the second input terminal, output
Second signal, second signal are that metallic plate two is opened or two or more signals.
Optionally, coil receiving terminal is connect by modulate circuit 140 with comparator 210, comparator 210 and control module
110 connections, the second amplifying circuit 144 are connect with the first input end of comparator 210, output end and the control mould of comparator 210
Block 110 connects, and the second output terminal of comparator 210 is connect with normal voltage.
By comparing the setting of device 210, testing result is determined in comparator 210, is occurred to aobvious by control module 110
Showing device 153 and alarm 160.
3rd embodiment
The present embodiment also provides a kind of metal-working plant, including the metal that wireless transport module and embodiment 1 provide
The metal double sheet detection circuit 130 that double sheet detection circuit 130 or embodiment 2 provide, control module 110 connect with wireless transport module
It connects, control module 110 is additionally operable to testing result being sent to peripheral equipment through wireless transport module.
Wireless transport module can be WiFi module, ZigBee module, 3G module, 4G modules or other meet condition
Wireless transport module.In this present embodiment, optionally, wireless transport module can be 3G module, for example, it may be
The 3G module of the models such as SIM6320C, CEM631, CEM600, WIDE M8800, FWP103, K3G, WM9881.Wherein, peripheral
Equipment includes but not limited to mobile phone, computer, monitoring center, console etc..
The operation principle of the metal double sheet detection circuit 130 of metal-working plant provided by the utility model is：Control mould
The pulse signal that block 110 is sent passes through the driving of signal drive circuit 120, is emitted by the coil transmitting terminal of detection circuit 130
Signal, transmitting signal obtain detection signal after metallic plate, and the coil receiving terminal of detection signal detected circuit 130 receives
After, detection signal is amplified and/or is filtered by modulate circuit 140, obtains conditioned signal, control module 110 is based on
Conditioned signal obtains testing result, and testing result is shown by display circuit 150 or is alarmed by alarm 160, to
Determine whether metallic plate to be measured is individual or multiple, obtains testing result, improves the working efficiency of user.
The preferred embodiment that these are only the utility model, is not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of metal double sheet detection circuit, which is characterized in that including control module, signal drive circuit and detection circuit；
The control module is connect by signal drive circuit with the coil transmissions end of the detection circuit, the detection circuit
Coil receiving terminal is connect with the control module, wherein for being arranged between the coil transmissions end and the coil receiving terminal
Metallic plate to be detected；
The signal drive circuit is used to drive the coil transmissions end to emit according to the pulse signal that the control module is sent
Signal；
The control module based on the coil receiving terminal for that will sense that detection signal corresponding with the transmitting signal obtains
It must be used to indicate whether the metallic plate to include the testing result of multiple.
2. metal double sheet detection circuit according to claim 1, which is characterized in that the metal double sheet detection circuit is also wrapped
Modulate circuit is included, the coil receiving terminal is connect by the modulate circuit with the control module；
The modulate circuit obtains conditioned signal, the control module for the detection signal to be amplified and/or filtered
The testing result is obtained based on the conditioned signal.
3. metal double sheet detection circuit according to claim 2, which is characterized in that the modulate circuit includes the first amplification
Circuit and the first filter circuit, the coil receiving terminal are connect with first amplifying circuit, first amplifying circuit and institute
The connection of the first filter circuit is stated, first filter circuit is connect with the control module；
First amplifying circuit after being amplified the detection signal for being transferred to first filter circuit；
First filter circuit, the signal for transmitting first amplifying circuit are sent to the control after being filtered
Module.
4. metal double sheet detection circuit according to claim 3, which is characterized in that the modulate circuit further includes second putting
Big circuit, first filter circuit are connect by second amplifying circuit with the control module；
Second amplifying circuit after being amplified the signal that first filter circuit transmits for being sent to the control
Module.
5. metal double sheet detection circuit according to claim 2, which is characterized in that the metal double sheet detection circuit is also wrapped
Display circuit is included, the display circuit is connect with the control module, for showing the testing result.
6. metal double sheet detection circuit according to claim 4, which is characterized in that the metal double sheet detection circuit is also wrapped
Comparator is included, second amplifying circuit is connect with the first input end of the comparator, the output end of the comparator and institute
Control module connection is stated, the second output terminal of the comparator is connect with normal voltage；
The comparator is for the voltage of first input end to be compared with the voltage of second output terminal, in first input
When the voltage at end is more than or equal to the voltage of second input terminal, the first signal is exported, it is small in the voltage of the first input end
When the voltage of second input terminal, second signal is exported.
7. metal double sheet detection circuit according to claim 1, which is characterized in that the signal drive circuit includes first
Switching tube, second switch pipe, third switching tube and the 4th switching tube, first end and the second switch of the first switch pipe
The first end of pipe connects, and the second end of the first switch pipe is connect with the second end of the second switch pipe, and described first opens
The third end for closing pipe is connect with the second end of the third switching tube, and the third end of the first switch pipe also passes through current limliting electricity
Resistance is connect with the first power supply, and the first end of the third switching tube is connect with first power supply, and the of the third switching tube
Three ends are connect with the side at the coil transmissions end, and the first end of the first switch pipe is also connect with the control module, institute
The third end for stating second switch pipe is connect with the second end of the 4th switching tube, and the third end of the second switch pipe is also through one
Current-limiting resistance is grounded, the first end ground connection of the 4th switching tube, third end and the coil transmissions of the 4th switching tube
The side at end connects, the other side ground connection at the coil transmissions end.
8. metal double sheet detection circuit according to claim 7, which is characterized in that the signal drive circuit further includes
One storage capacitance and the second storage capacitance；
First storage capacitance and second storage capacitance ground connection that first power supply is also concatenated.
9. according to claim 1-8 any one of them metal double sheet detection circuits, which is characterized in that the metal double sheet detection
Circuit further includes alarm, and the alarm is connect with the control module；
The control module is additionally operable in testing result exception, is controlled the alarm and is carried out alarm.
10. a kind of metal-working plant, which is characterized in that including wireless transport module and as described in claim any one of 1-9
Metal double sheet detection circuit, the control module connect with the wireless transport module, and the control module is additionally operable to institute
It states testing result and is sent to peripheral equipment through the wireless transport module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820285358.7U CN207881743U (en) | 2018-02-28 | 2018-02-28 | Metal double sheet detection circuit and metal-working plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820285358.7U CN207881743U (en) | 2018-02-28 | 2018-02-28 | Metal double sheet detection circuit and metal-working plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207881743U true CN207881743U (en) | 2018-09-18 |
Family
ID=63495869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820285358.7U Expired - Fee Related CN207881743U (en) | 2018-02-28 | 2018-02-28 | Metal double sheet detection circuit and metal-working plant |
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| Country | Link |
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| CN (1) | CN207881743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014054A (en) * | 2019-03-25 | 2019-07-16 | 广州智研电子科技有限公司 | A kind of metal sheet stock charging detection method |
| CN115876244A (en) * | 2021-08-03 | 2023-03-31 | 科瑞工业自动化系统（苏州）有限公司 | Space multipoint temperature compensation single-double sensing system |
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2018
- 2018-02-28 CN CN201820285358.7U patent/CN207881743U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110014054A (en) * | 2019-03-25 | 2019-07-16 | 广州智研电子科技有限公司 | A kind of metal sheet stock charging detection method |
| CN115876244A (en) * | 2021-08-03 | 2023-03-31 | 科瑞工业自动化系统（苏州）有限公司 | Space multipoint temperature compensation single-double sensing system |
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Granted publication date: 20180918 |