CN104485931A - Pulse detection sensor based on phase-locked loop - Google Patents
Pulse detection sensor based on phase-locked loop Download PDFInfo
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- CN104485931A CN104485931A CN201410664918.6A CN201410664918A CN104485931A CN 104485931 A CN104485931 A CN 104485931A CN 201410664918 A CN201410664918 A CN 201410664918A CN 104485931 A CN104485931 A CN 104485931A
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Abstract
The invention discloses a pulse detection sensor based on a phase-locked loop. The pulse detection sensor is mainly composed of a signal acquisition module, a pulse detection circuit and a rectification circuit, wherein the pulse detection circuit is connected with the signal acquisition module; the rectification circuit is connected with the pulse detection circuit; the pulse detection sensor is characterized in that an output end of the rectification circuit is also provided with a phase-locked loop circuit; the phase-locked loop circuit is composed of a triode VT3, a triode VT4, a triode VT5, a capacitor C7, a resistor R10, a capacitor C8 and the like; an anode of the capacitor C7 is connected with the rectification circuit; a cathode of the capacitor C7 is connected with a base of the triode VT3; one end of the resistor R10 is connected with a collector of the triode VT3; the other end of the resistor R10 passes through a resistor R9 and a resistor R11 and then is connected with the collector of the triode VT3; a cathode of the capacitor C8 passes through a resistor R13 and a resistor R12 and then is connected with a collector of the triode VT4; an anode of the capacitor C8 is connected with an emitter of the triode VT3. The pulse detection sensor is provided with the phase-locked loop circuit, so that the frequency range of the sensor can be relatively wide, and the frequency is relatively stable.
Description
Technical field
The present invention relates to a kind of electronic sensor, specifically refer to a kind of pulse detection transducer based on phase-locked loop.
Background technology
People, must by means of sense organ in order to from extraneous obtaining information.And depend merely on the sense organ of people self, in investigate natural phenomena and rule and activity in production, their function is just far from much of that.For adapting to this situation, just need transducer.Therefore can say, transducer is the prolongation of mankind's face, is referred to as again electric face.
The arrival of new technology revolution, the world starts to enter the information age.In the process utilizing information, what first will solve will obtain information accurately and reliably exactly, and transducer is the main path and the means that obtain information in nature and production field.In modern industry produces especially automated production process, carry out the parameters in monitoring and controlling production process with various transducer, make equipment be operated in normal condition or optimum state, and make product reach best quality.Therefore can say, do not have numerous excellent transducers, modern production also just loses basis.The sensor frequency used at present is stable not, thus the parameter generation error making it monitor, affect production process.
Summary of the invention
The object of the invention is to overcome moment sensor frequency defect stable not, the pulse detection transducer based on phase-locked loop that a kind of frequency stability is high is provided.
Object of the present invention is achieved through the following technical solutions: based on the pulse detection transducer of phase-locked loop, primarily of signal acquisition module, the pulse-detecting circuit be connected with signal acquisition module, the correction circuit be connected with pulse-detecting circuit forms, and is also provided with phase-locked loop circuit at correction circuit output end; Described phase-locked loop circuit is by triode VT3, triode VT4, triode VT5, positive pole and the electric capacity C7 that circuit is connected, negative pole is connected with the base stage of triode VT3 that rectifies a deviation, the resistance R10 that one end is connected with the collector electrode of triode VT3, the other end is connected with the collector electrode of triode VT3 after resistance R11 through resistance R9, the electric capacity C8 that negative pole is connected with the collector electrode of triode VT4 after resistance R12 through resistance R13, positive pole is connected with the emitter of triode VT3, and the electric capacity C9 that negative pole is connected with its positive pole after resistance R14 through resistance R15 forms; The collector electrode of described triode VT5 is connected with the negative pole of electric capacity C9, emitter is connected with the emitter of triode VT4, base stage is connected with the negative pole of electric capacity C8, the base stage of triode VT4 is connected with the positive pole of electric capacity C9, emitter is connected with the collector electrode of triode VT3, resistance R10 is connected with the negative pole of electric capacity C7 with the tie point of resistance R9, the tie point of the tie point of resistance R15 and resistance R14 and resistance R13 and resistance R12 and resistance R11 interconnective with the tie point of resistance R9 while be connected with correction circuit.
Described pulse-detecting circuit is by detection chip M1, triode VT1, one end is connected with the VCC pin of detection chip M1, the resistance R1 that the other end is then connected with the base stage of triode VT1, one end is connected with the emitter of triode VT1, the resistance R2 that the other end is connected with DIS pin with the TIRE pin of detection chip M1 respectively, N pole is connected with circuit of rectifying a deviation with the OUT pin of detection chip M1 respectively, the P pole then diode D1 of ground connection after resistance R4 and resistance R3 and electric capacity C1 in turn, and one end is connected with the CONT pin of detection chip M1, the electric capacity C2 of other end ground connection forms, the VCC pin of described detection chip M1 is connected with signal acquisition module, its TRI pin is then connected with the tie point of electric capacity C1 with resistance R3, RESET pin is connected with the tie point of resistance R4 with resistance R3, DIS pin is also connected with the tie point of electric capacity C1 with resistance R3 with THRE pin, its GND pin ground connection, the grounded collector of described triode VT1.
Described correction circuit is by the chip M2 that rectifies a deviation, triode VT2, differential amplifier U1, differential amplifier U2, one end is connected with the FX pin of correction chip M2, the resistance R6 that the other end is connected with the base stage of triode VT2, one end is connected with the emitter of triode VT2, the resistance R7 that the other end is connected with the BE pin of correction chip M2 after electric capacity C3, positive pole is connected with the tie point of electric capacity C3 with resistance R7 after resistance R8, the electric capacity C4 of minus earth, one end is connected with the output of differential amplifier U1, the resistance R5 that the other end is connected with the positive terminal of differential amplifier U2, be serially connected in the electric capacity C5 between the positive terminal of differential amplifier U2 and output, and positive pole is connected with the output of differential amplifier U1, the electric capacity C6 that negative pole is connected with the tie point of resistance R14 with resistance R15 forms, the end of oppisite phase of described differential amplifier U2 is simultaneously with the FU pin of correction chip M2 and the positive pole of electric capacity C4 is connected, output is connected with the positive pole of electric capacity C7, and the end of oppisite phase of differential amplifier U1 is connected with the BN pin of the chip M2 that rectifies a deviation, positive terminal is connected with the N pole of diode D1.
The present invention comparatively prior art compares and has the following advantages and beneficial effect:
(1) the present invention is provided with phase-locked loop circuit, and it can make the frequency range of transducer wider, and frequency is more stable.
(2) the present invention is provided with pulse-detecting circuit, can paired pulses mistake detect, and the parameter making it monitor operational environment is more accurate, reduces the loss because error brings.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, the pulse detection transducer based on phase-locked loop of the present invention, primarily of signal acquisition module, the pulse-detecting circuit be connected with signal acquisition module, the correction circuit be connected with pulse-detecting circuit forms.In order to realize object of the present invention, be also provided with phase-locked loop circuit at correction circuit output end.
Wherein, phase-locked loop circuit is by triode VT3, triode VT4, triode VT5, positive pole and the electric capacity C7 that circuit is connected, negative pole is connected with the base stage of triode VT3 that rectifies a deviation, the resistance R10 that one end is connected with the collector electrode of triode VT3, the other end is connected with the collector electrode of triode VT3 after resistance R11 through resistance R9, the electric capacity C8 that negative pole is connected with the collector electrode of triode VT4 after resistance R12 through resistance R13, positive pole is connected with the emitter of triode VT3, and the electric capacity C9 that negative pole is connected with its positive pole after resistance R14 through resistance R15 forms; The collector electrode of described triode VT5 is connected with the negative pole of electric capacity C9, emitter is connected with the emitter of triode VT4, base stage is connected with the negative pole of electric capacity C8, the base stage of triode VT4 is connected with the positive pole of electric capacity C9, emitter is connected with the collector electrode of triode VT3, resistance R10 is connected with the negative pole of electric capacity C7 with the tie point of resistance R9, the tie point of the tie point of resistance R15 and resistance R14 and resistance R13 and resistance R12 and resistance R11 interconnective with the tie point of resistance R9 while be connected with correction circuit.Phase-locked loop circuit can make the frequency range of transducer more extensively, more stable.
Described pulse-detecting circuit is by detection chip M1, triode VT1, one end is connected with the VCC pin of detection chip M1, the resistance R1 that the other end is then connected with the base stage of triode VT1, one end is connected with the emitter of triode VT1, the resistance R2 that the other end is connected with DIS pin with the TIRE pin of detection chip M1 respectively, N pole is connected with circuit of rectifying a deviation with the OUT pin of detection chip M1 respectively, the P pole then diode D1 of ground connection after resistance R4 and resistance R3 and electric capacity C1 in turn, and one end is connected with the CONT pin of detection chip M1, the electric capacity C2 of other end ground connection forms, the VCC pin of described detection chip M1 is connected with signal acquisition module, its TRI pin is then connected with the tie point of electric capacity C1 with resistance R3, RESET pin is connected with the tie point of resistance R4 with resistance R3, DIS pin is also connected with the tie point of electric capacity C1 with resistance R3 with THRE pin, its GND pin ground connection, the grounded collector of described triode VT1.The detecting sensor pulse of receiving whether can have mistake by pulse-detecting circuit, and correct, the signal making it export is more accurate.In order to ensure implementation result, described detection chip M1 adopts NE555.
In order to ensure that transducer exports signal accurately further, thus be provided with correction circuit.It is by the chip M2 that rectifies a deviation, triode VT2, differential amplifier U1, differential amplifier U2, one end is connected with the FX pin of correction chip M2, the resistance R6 that the other end is connected with the base stage of triode VT2, one end is connected with the emitter of triode VT2, the resistance R7 that the other end is connected with the BE pin of correction chip M2 after electric capacity C3, positive pole is connected with the tie point of electric capacity C3 with resistance R7 after resistance R8, the electric capacity C4 of minus earth, one end is connected with the output of differential amplifier U1, the resistance R5 that the other end is connected with the positive terminal of differential amplifier U2, be serially connected in the electric capacity C5 between the positive terminal of differential amplifier U2 and output, and positive pole is connected with the output of differential amplifier U1, the electric capacity C6 that negative pole is connected with the tie point of resistance R14 with resistance R15 forms, the end of oppisite phase of described differential amplifier U2 is simultaneously with the FU pin of correction chip M2 and the positive pole of electric capacity C4 is connected, output is connected with the positive pole of electric capacity C7, and the end of oppisite phase of differential amplifier U1 is connected with the BN pin of the chip M2 that rectifies a deviation, positive terminal is connected with the N pole of diode D1.
As mentioned above, just the present invention can well be realized.
Claims (3)
1. based on the pulse detection transducer of phase-locked loop, primarily of signal acquisition module, the pulse-detecting circuit be connected with signal acquisition module, the correction circuit be connected with pulse-detecting circuit forms, and it is characterized in that: be also provided with phase-locked loop circuit at correction circuit output end; Described phase-locked loop circuit is by triode VT3, triode VT4, triode VT5, positive pole and the electric capacity C7 that circuit is connected, negative pole is connected with the base stage of triode VT3 that rectifies a deviation, the resistance R10 that one end is connected with the collector electrode of triode VT3, the other end is connected with the collector electrode of triode VT3 after resistance R11 through resistance R9, the electric capacity C8 that negative pole is connected with the collector electrode of triode VT4 after resistance R12 through resistance R13, positive pole is connected with the emitter of triode VT3, and the electric capacity C9 that negative pole is connected with its positive pole after resistance R14 through resistance R15 forms; The collector electrode of described triode VT5 is connected with the negative pole of electric capacity C9, emitter is connected with the emitter of triode VT4, base stage is connected with the negative pole of electric capacity C8, the base stage of triode VT4 is connected with the positive pole of electric capacity C9, emitter is connected with the collector electrode of triode VT3, resistance R10 is connected with the negative pole of electric capacity C7 with the tie point of resistance R9, the tie point of the tie point of resistance R15 and resistance R14 and resistance R13 and resistance R12 and resistance R11 interconnective with the tie point of resistance R9 while be connected with correction circuit.
2. the pulse detection transducer based on phase-locked loop according to claim 1, it is characterized in that: described pulse-detecting circuit is by detection chip M1, triode VT1, one end is connected with the VCC pin of detection chip M1, the resistance R1 that the other end is then connected with the base stage of triode VT1, one end is connected with the emitter of triode VT1, the resistance R2 that the other end is connected with DIS pin with the TIRE pin of detection chip M1 respectively, N pole is connected with circuit of rectifying a deviation with the OUT pin of detection chip M1 respectively, the P pole then diode D1 of ground connection after resistance R4 and resistance R3 and electric capacity C1 in turn, and one end is connected with the CONT pin of detection chip M1, the electric capacity C2 of other end ground connection forms, the VCC pin of described detection chip M1 is connected with signal acquisition module, its TRI pin is then connected with the tie point of electric capacity C1 with resistance R3, RESET pin is connected with the tie point of resistance R4 with resistance R3, DIS pin is also connected with the tie point of electric capacity C1 with resistance R3 with THRE pin, its GND pin ground connection, the grounded collector of described triode VT1.
3. the pulse detection transducer based on phase-locked loop according to claim 2, it is characterized in that: described correction circuit is by the chip M2 that rectifies a deviation, triode VT2, differential amplifier U1, differential amplifier U2, one end is connected with the FX pin of correction chip M2, the resistance R6 that the other end is connected with the base stage of triode VT2, one end is connected with the emitter of triode VT2, the resistance R7 that the other end is connected with the BE pin of correction chip M2 after electric capacity C3, positive pole is connected with the tie point of electric capacity C3 with resistance R7 after resistance R8, the electric capacity C4 of minus earth, one end is connected with the output of differential amplifier U1, the resistance R5 that the other end is connected with the positive terminal of differential amplifier U2, be serially connected in the electric capacity C5 between the positive terminal of differential amplifier U2 and output, and positive pole is connected with the output of differential amplifier U1, the electric capacity C6 that negative pole is connected with the tie point of resistance R14 with resistance R15 forms, the end of oppisite phase of described differential amplifier U2 is simultaneously with the FU pin of correction chip M2 and the positive pole of electric capacity C4 is connected, output is connected with the positive pole of electric capacity C7, and the end of oppisite phase of differential amplifier U1 is connected with the BN pin of the chip M2 that rectifies a deviation, positive terminal is connected with the N pole of diode D1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664918.6A CN104485931A (en) | 2014-11-19 | 2014-11-19 | Pulse detection sensor based on phase-locked loop |
| CN201510284695.5A CN104852711A (en) | 2014-11-19 | 2015-05-28 | Phase-locked energy-saving pulse detection sensor based on pulse amplification trigger circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664918.6A CN104485931A (en) | 2014-11-19 | 2014-11-19 | Pulse detection sensor based on phase-locked loop |
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| CN104485931A true CN104485931A (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410664918.6A Pending CN104485931A (en) | 2014-11-19 | 2014-11-19 | Pulse detection sensor based on phase-locked loop |
| CN201510284695.5A Withdrawn CN104852711A (en) | 2014-11-19 | 2015-05-28 | Phase-locked energy-saving pulse detection sensor based on pulse amplification trigger circuit |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510284695.5A Withdrawn CN104852711A (en) | 2014-11-19 | 2015-05-28 | Phase-locked energy-saving pulse detection sensor based on pulse amplification trigger circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852711A (en) * | 2014-11-19 | 2015-08-19 | 成都冠深科技有限公司 | Phase-locked energy-saving pulse detection sensor based on pulse amplification trigger circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7274756B2 (en) * | 2001-07-18 | 2007-09-25 | Vrije Universteit Brussel | Digital signal receiver operating beyond the -3dB frequency |
| CN103760175A (en) * | 2014-02-08 | 2014-04-30 | 四川环龙技术织物有限公司 | Circuit system for measuring humidity of papermaking felt through microwave technique |
| CN104485931A (en) * | 2014-11-19 | 2015-04-01 | 成都创图科技有限公司 | Pulse detection sensor based on phase-locked loop |
| CN104461462A (en) * | 2014-11-28 | 2015-03-25 | 成都措普科技有限公司 | Novel logic protection emitter coupling type row address register system |
-
2014
- 2014-11-19 CN CN201410664918.6A patent/CN104485931A/en active Pending
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- 2015-05-28 CN CN201510284695.5A patent/CN104852711A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852711A (en) * | 2014-11-19 | 2015-08-19 | 成都冠深科技有限公司 | Phase-locked energy-saving pulse detection sensor based on pulse amplification trigger circuit |
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| CN104852711A (en) | 2015-08-19 |
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Application publication date: 20150401 |