CN204631262U - A kind of processing unit that transmits of novel intelligent metal detector - Google Patents
A kind of processing unit that transmits of novel intelligent metal detector Download PDFInfo
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- CN204631262U CN204631262U CN201520175253.2U CN201520175253U CN204631262U CN 204631262 U CN204631262 U CN 204631262U CN 201520175253 U CN201520175253 U CN 201520175253U CN 204631262 U CN204631262 U CN 204631262U
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Abstract
The processing unit that transmits of novel intelligent metal detector, the processing unit that transmits of described novel intelligent metal detector comprises connection terminal 1,2,3, three grades of low-pass filters, power amplifiers.The utility model reduces interference noise by hardware device, and obvious to the effect of interference noise, makes the stability of system strong; Described power amplifier is TDA2030A, and it is high that it has switching rate, and distortion is little, and output power is large, the features such as external circuit is simple.
Description
Technical field
The utility model relates to signal processing unit, is specifically related to a kind of processing unit that transmits of novel intelligent metal detector.
Background technology
Signal processing unit is mainly for the outer treatment circuit of simulating signal, groundwork realizes the filtering of excitation source signal and Received signal strength and amplifies process, reduce interference noise by hardware device as far as possible, for follow-up lays the foundation to the identifying processing of echo signal, improve system stability.And existing signal processing unit is all reduce interference noise by the combination of software or software restraint, and not obvious to the effect of interference noise, make the stability of system weak.
Utility model content
For above the deficiencies in the prior art, the utility model provides a kind of processing unit that transmits of novel intelligent metal detector.
A kind of processing unit that transmits of novel intelligent metal detector, the processing unit that transmits of described novel intelligent metal detector comprises connection terminal 1, 2, 3, three grades of low-pass filters, power amplifier, described connection terminal 1 resistance in series R214, the input end of three grades of low-pass filters is connected on after described resistance R214 connects with resistance R215, the other end ground connection of described resistance R215, the output terminal of described three grades of low-pass filters is connected a migration potential device W201, described potentiometer W201 other end ground connection, the lever arm of described mobile resistance is connected and is connected the normal phase input end of power amplifier after an electric capacity C204, the output terminal of described power amplifier connects connection terminal 2 and the positive pole of diode D201 and the negative pole of diode D202, the negative pole of described diode D201 connects the positive supply of power amplifier, the positive supply of power amplifier is connected after the positive pole VCC series inductance L201 of described power supply, the positive pole VCC of described power supply connects the positive pole of electric capacity C205, the minus earth of described electric capacity C205, the positive pole of described diode D202 connects the negative supply of power amplifier, the negative supply of power amplifier is connected after the negative pole-VCC series inductance L202 of described power supply, negative pole-the VCC of described power supply connects the negative pole of electric capacity C206, the plus earth of described electric capacity C205, the inverting input of power from amplifier is connect after described connection terminal 2 contact resistance R205, ground connection after the inverting input resistance in series R206 of described power amplifier and electric capacity C207, one end of described connection terminal 2 connecting resistance R207, ground connection after the other end resistance in series C208 of described resistance R207, one end of described connection terminal 2 connecting resistance R208, ground connection after the other end resistance in series R209 of described resistance R208, connection terminal 1 is connect after the other end series capacitance C209 of described resistance R208, ground connection after two pins in parallel of described connection terminal 1, ground connection after two pins in parallel of described connection terminal 1, described connection terminal 3 connects the negative pole-VCC of power supply, described connection terminal 3 one pin ground connection, one end of described connection terminal 3 connecting resistance R210, ground connection after the other end resistance in series R211 of described resistance R210, one end of the negative pole-VCC contact resistance R213 of described power supply, ground connection after the other end resistance in series 212 of described resistance R213, one end of described resistance R210 connects the positive pole VCC of power supply, the positive pole VCC of described power supply connects the positive pole of electric capacity C210 and one end of electric capacity C211, the minus earth of described electric capacity C210 and the positive pole of electric capacity C212, the negative pole of described electric capacity C212 meets the negative pole-VCC of power supply, the other end ground connection of described electric capacity C211 and one end of electric capacity C213, negative pole-the VCC of another termination power of described C213.
Described power amplifier is TDA2030A.
One end of the input end contact resistance R201 of described three grades of low-pass filters, described one end of resistance R201 other end contact resistance R202 and one end of electric capacity C201, the other end ground connection of described electric capacity C201, described one end of resistance R202 contact resistance R203 and one end of electric capacity C202, the other end ground connection of described electric capacity C202, the other end of described resistance R203 connects one end of electric capacity C203 and the output terminal of three grades of low-pass filters, the other end ground connection of described electric capacity C203.
Described R214, R215 monitor for providing the input of Power Amplifier Unit.
Described R208, R209 monitor for providing the output of Power Amplifier Unit.
The beneficial effects of the utility model are: the utility model reduces interference noise by hardware device, and obvious to the effect of interference noise, make the stability of system strong; Described power amplifier is TDA2030A, and it is high that it has switching rate, and distortion is little, and output power is large, the features such as external circuit is simple.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of the processing unit that transmits of a kind of novel intelligent metal detector of the utility model.
Embodiment
Illustrate below in conjunction with embodiment and accompanying drawing and the utility model is described in further details.
As shown in Figure 1, a kind of processing unit that transmits of novel intelligent metal detector, the processing unit that transmits of described novel intelligent metal detector comprises connection terminal 1, 2, 3, three grades of low-pass filters, power amplifier, described connection terminal 1 resistance in series R214, the input end of three grades of low-pass filters is connected on after described resistance R214 connects with resistance R215, the other end ground connection of described resistance R215, the output terminal of described three grades of low-pass filters is connected a migration potential device W201, described potentiometer W201 other end ground connection, the lever arm of described mobile resistance is connected and is connected the normal phase input end of power amplifier after an electric capacity C204, the output terminal of described power amplifier connects connection terminal 2 and the positive pole of diode D201 and the negative pole of diode D202, the negative pole of described diode D201 connects the positive supply of power amplifier, the positive supply of power amplifier is connected after the positive pole VCC series inductance L201 of described power supply, the positive pole VCC of described power supply connects the positive pole of electric capacity C205, the minus earth of described electric capacity C205, the positive pole of described diode D202 connects the negative supply of power amplifier, the negative supply of power amplifier is connected after the negative pole-VCC series inductance L202 of described power supply, negative pole-the VCC of described power supply connects the negative pole of electric capacity C206, the plus earth of described electric capacity C205, the inverting input of power from amplifier is connect after described connection terminal 2 contact resistance R205, ground connection after the inverting input resistance in series R206 of described power amplifier and electric capacity C207, one end of described connection terminal 2 connecting resistance R207, ground connection after the other end resistance in series C208 of described resistance R207, one end of described connection terminal 2 connecting resistance R208, ground connection after the other end resistance in series R209 of described resistance R208, connection terminal 1 is connect after the other end series capacitance C209 of described resistance R208, ground connection after two pins in parallel of described connection terminal 1, ground connection after two pins in parallel of described connection terminal 1, described connection terminal 3 connects the negative pole-VCC of power supply, described connection terminal 3 one pin ground connection, one end of described connection terminal 3 connecting resistance R210, ground connection after the other end resistance in series R211 of described resistance R210, one end of the negative pole-VCC contact resistance R213 of described power supply, ground connection after the other end resistance in series 212 of described resistance R213, one end of described resistance R210 connects the positive pole VCC of power supply, the positive pole VCC of described power supply connects the positive pole of electric capacity C210 and one end of electric capacity C211, the minus earth of described electric capacity C210 and the positive pole of electric capacity C212, the negative pole of described electric capacity C212 meets the negative pole-VCC of power supply, the other end ground connection of described electric capacity C211 and one end of electric capacity C213, negative pole-the VCC of another termination power of described C213.
One end of the input end contact resistance R201 of described three grades of low-pass filters, described one end of resistance R201 other end contact resistance R202 and one end of electric capacity C201, the other end ground connection of described electric capacity C201, described one end of resistance R202 contact resistance R203 and one end of electric capacity C202, the other end ground connection of described electric capacity C202, the other end of described resistance R203 connects one end of electric capacity C203 and the output terminal of three grades of low-pass filters, the other end ground connection of described electric capacity C203.The utility model reduces interference noise by hardware device, and obvious to the effect of interference noise, makes the stability of system strong.
Particularly, described R214, R215 dividing potential drop provides Power Amplifier Unit input to monitor, described R208, R209 dividing potential drop provides Power Amplifier Unit to export and monitors.
Described power amplifier is TDA2030A, and it is high that it has switching rate, and distortion is little, and output power is large, the features such as external circuit is simple.
Following technique effect can be realized by the utility model:
The utility model reduces interference noise by hardware device, and obvious to the effect of interference noise, makes the stability of system strong; Described power amplifier is TDA2030A, and it is high that it has switching rate, and distortion is little, and output power is large, the features such as external circuit is simple.
Claims (5)
1. the processing unit that transmits of a novel intelligent metal detector, it is characterized in that the processing unit that transmits of described novel intelligent metal detector comprises connection terminal 1, 2, 3, three grades of low-pass filters, power amplifier, described connection terminal 1 resistance in series R214, the input end of three grades of low-pass filters is connected on after described resistance R214 connects with resistance R215, the other end ground connection of described resistance R215, the output terminal of described three grades of low-pass filters is connected a migration potential device W201, described potentiometer W201 other end ground connection, the lever arm of described mobile resistance is connected and is connected the normal phase input end of power amplifier after an electric capacity C204, the output terminal of described power amplifier connects connection terminal 2 and the positive pole of diode D201 and the negative pole of diode D202, the negative pole of described diode D201 connects the positive supply of power amplifier, the positive supply of power amplifier is connected after the positive pole VCC series inductance L201 of described power supply, the positive pole VCC of described power supply connects the positive pole of electric capacity C205, the minus earth of described electric capacity C205, the positive pole of described diode D202 connects the negative supply of power amplifier, the negative supply of power amplifier is connected after the negative pole-VCC series inductance L202 of described power supply, negative pole-the VCC of described power supply connects the negative pole of electric capacity C206, the plus earth of described electric capacity C205, the inverting input of power from amplifier is connect after described connection terminal 2 contact resistance R205, ground connection after the inverting input resistance in series R206 of described power amplifier and electric capacity C207, one end of described connection terminal 2 connecting resistance R207, ground connection after the other end resistance in series C208 of described resistance R207, one end of described connection terminal 2 connecting resistance R208, ground connection after the other end resistance in series R209 of described resistance R208, connection terminal 1 is connect after the other end series capacitance C209 of described resistance R208, ground connection after two pins in parallel of described connection terminal 1, ground connection after two pins in parallel of described connection terminal 1, described connection terminal 3 connects the negative pole-VCC of power supply, described connection terminal 3 one pin ground connection, one end of described connection terminal 3 connecting resistance R210, ground connection after the other end resistance in series R211 of described resistance R210, one end of the negative pole-VCC contact resistance R213 of described power supply, ground connection after the other end resistance in series 212 of described resistance R213, one end of described resistance R210 connects the positive pole VCC of power supply, the positive pole VCC of described power supply connects the positive pole of electric capacity C210 and one end of electric capacity C211, the minus earth of described electric capacity C210 and the positive pole of electric capacity C212, the negative pole of described electric capacity C212 meets the negative pole-VCC of power supply, the other end ground connection of described electric capacity C211 and one end of electric capacity C213, negative pole-the VCC of another termination power of described C213.
2. the processing unit that transmits of a kind of novel intelligent metal detector according to claim 1, is characterized in that described power amplifier is TDA2030A.
3. the processing unit that transmits of a kind of novel intelligent metal detector according to claim 1, it is characterized in that one end of the input end contact resistance R201 of described three grades of low-pass filters, described one end of resistance R201 other end contact resistance R202 and one end of electric capacity C201, the other end ground connection of described electric capacity C201, described one end of resistance R202 contact resistance R203 and one end of electric capacity C202, the other end ground connection of described electric capacity C202, the other end of described resistance R203 connects one end of electric capacity C203 and the output terminal of three grades of low-pass filters, the other end ground connection of described electric capacity C203.
4. the processing unit that transmits of a kind of novel intelligent metal detector according to claim 1, is characterized in that described R214, R215 monitor for providing the input of Power Amplifier Unit.
5. the processing unit that transmits of a kind of novel intelligent metal detector according to claim 1, is characterized in that described R208, R209 monitor for providing the unit of power amplifier to export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520175253.2U CN204631262U (en) | 2015-03-26 | 2015-03-26 | A kind of processing unit that transmits of novel intelligent metal detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520175253.2U CN204631262U (en) | 2015-03-26 | 2015-03-26 | A kind of processing unit that transmits of novel intelligent metal detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204631262U true CN204631262U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520175253.2U Expired - Fee Related CN204631262U (en) | 2015-03-26 | 2015-03-26 | A kind of processing unit that transmits of novel intelligent metal detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204631262U (en) |
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2015
- 2015-03-26 CN CN201520175253.2U patent/CN204631262U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20160326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |