CN103499749A - Static electricity detection device - Google Patents

Static electricity detection device Download PDF

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Publication number
CN103499749A
CN103499749A CN201310482444.9A CN201310482444A CN103499749A CN 103499749 A CN103499749 A CN 103499749A CN 201310482444 A CN201310482444 A CN 201310482444A CN 103499749 A CN103499749 A CN 103499749A
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circuit
resistance
capacitor
mouth
chip microcomputer
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CN201310482444.9A
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CN103499749B (en
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余琳
李臻
李立
单志林
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CETC 38 Research Institute
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CETC 38 Research Institute
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Abstract

The invention provides a static electricity detection device. The static electricity detection device comprises a power supply management circuit, a microcontroller operating circuit, a communication circuit, a temperature detection circuit, a humidity detection circuit and a static electricity detection circuit, wherein the microcontroller operating circuit, the communication circuit, the temperature detection circuit, the humidity detection circuit and the static electricity detection circuit are all connected with the power supply management circuit; the microcontroller operating circuit is connected with the power supply management circuit, the communication circuit, the temperature detection circuit, the humidity detection circuit and the static electricity detection circuit respectively; the static electricity detection circuit comprises a copper disc CU, resistors (R6-R11), variodes (VD1-VD2n), a transient voltage suppression diode D2, a transformer Tran and a triode T2, wherein n is a positive integer; the temperature detection circuit comprises a resistive temperature sensor TR, a resistor R4, a capacitor C7 and an electrolytic capacitor C6; the humidity detection circuit comprises a humidity sensor U3, a capacitor C8 and a resistor R5. The static electricity detection device has the advantage that the electrostatic voltage magnitude and ambient temperature and humidity of a detected area or a detected equipment accessory can be acquired in real time.

Description

A kind of electrostatic testing apparatus
Technical field
The present invention relates to a kind of pick-up unit, particularly a kind of static testing fixture.
Background technology
The effect of earthing device be mainly prevent that the person from getting shocked, equipment and circuit suffers damage, fire preventing and prevent thunderbolt, prevent static damage and ensure that electric system normally moves, be an important component part in electric system.No matter be heavy current installation or weak current equipment, no matter be high-tension apparatus or low-voltage equipment, the whether qualified normal safe operation that all directly has influence on system and equipment of earthing device.Once imperfect earth appears in electrical equipment, the gathering meeting of a large amount of static threatens to equipment and staff; And, when static reaches certain value, likely because of static discharge, cause even fire of equipment failure, thereby cause the loss that is difficult to make up.
At present, judge that whether electrical equipment grounding is good, usually adopt the method for ground resistance measuring instrument or pincerlike earth resistance tester measuring equipment grounding resistance to be judged.Electrical equipment is widely distributed, from the city to the small towns, from indoor, to field, have, if the mode by artificial survey stake resistance regularly detects, a large amount of human and material resources and time have been wasted on the one hand, on the other hand due to the fault of earthing device usually with very large contingency and randomness, thereby can't accomplish real-time monitoring.
Also have much to the highstrung working environment of static in addition, field of petrochemical industry, along with the development of accumulating industry, flow velocity, flow that oil product is carried improve constantly, and the electrostatic accident caused thus is also more and more.Under these environment, static swims in the air usually together with other particles, is difficult to judge that by certain any static the static of whole working environment distributes.
Based on above situation, develop a kind of small-sized low-power consumption, and the equipment that can detect online for a long time static is necessary.The generation of static is with to release itself be a dynamic process, and is subject to the impact of environment temperature, humidity very large, if thereby can in electrostatic detection equipment, increase the temperature and humidity parameter, will greatly increase being detected the reliability of regional electrostatic dynamic Characteristics Detection.
Summary of the invention
The object of the present invention is to provide a kind of electrostatic testing apparatus, utilize the temperature and humidity of can the Real-time Collection detected area of this electrostatic testing apparatus or detected equipment appurtenance electrostatic potential size and environment, and can be by the data transmission that detects to Surveillance center.
The present invention is achieved in that a kind of electrostatic testing apparatus, and it comprises electric power management circuit, microcontroller operating circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit; This electric power management circuit all is connected with microcontroller operating circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit; This microcontroller operating circuit all is connected with electric power management circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit; Wherein,
This electrostatic detection circuit comprises copper dish CU, resistance R 6~R11, varactor VD1~VD2n, transient voltage suppressor diode D2, transformer Tran, triode T2, and n is positive integer; Copper dish CU is successively via resistance R 8, resistance R 7 ground connection; Varactor VD1~VDn is parallel with one another, varactor VD (n+1)~VD2n is parallel with one another, the negative electrode of varactor VD1~VDn with negative electrode, the resistance R 8 of transient voltage suppressor diode D2, with the common port of R7, be connected after the negative electrode of varactor VD (n+1)~VD2n is connected; The anode of transient voltage suppressor diode D2 with an end of transformer Tran primary side, be connected after the anode of varactor VD1~VDn is connected, the anode of varactor VD (n+1)~VD2n is connected with the other end of transformer Tran primary side; The common port of transformer Tran primary side passes through resistance R 9 ground connection, and is connected with the microcontroller operating circuit; One end of transformer Tran primary side connects working power VCC via resistance R 11, resistance R 10 successively, with the collector of triode T2, is connected simultaneously; Ground connection after the other end of transformer Tran primary side is connected with the emitter of triode T2; The base stage of triode T2 is connected with the microcontroller operating circuit by resistance R 6;
This temperature sensing circuit comprises resistance temperature detector TR, resistance R 4, capacitor C 7, electrochemical capacitor C6; The end of resistance temperature detector TR connects working power VCC via resistance R 4, an end of the other end and capacitor C 7, the negative pole of the electrochemical capacitor C6 ground connection afterwards that is connected; The positive pole of the other end of capacitor C 7, electrochemical capacitor C6 is connected with the microcontroller operating circuit;
This humidity measuring circuit comprises humidity sensor U3, capacitor C 8, resistance R 5; The ground connection termination working power VCC of humidity sensor U3 via capacitor C 8 ground connection, its output terminal is by resistance R 5 ground connection and be connected its earth terminal ground connection with the microcontroller operating circuit.
Further improvement as such scheme, this microcontroller operating circuit comprises single-chip microcomputer U1 and corresponding peripheral auxiliary circuits thereof, the common port of single-chip microcomputer U1 connection transformer Tran primary side, resistance R 6, the positive pole of electrochemical capacitor C6, the output terminal of humidity sensor U3.Preferably, single-chip microcomputer U1 is the MSP430G2553 chip, and the peripheral auxiliary circuits of single-chip microcomputer U1 comprises crystal oscillator X, capacitor C 3; 1 pin of single-chip microcomputer U1 is by capacitor C 3 ground connection, the 20 pin ground connection of single-chip microcomputer U1,18 pin of single-chip microcomputer U1 are connected with 19 pin of single-chip microcomputer U1 by crystal oscillator X, the P1.6 mouth of single-chip microcomputer U1, P1.7 mouth, P2.2~P2.5 mouth are connected with telecommunication circuit respectively, and the P1.1 mouth of single-chip microcomputer U1 is connected with the positive pole of electrochemical capacitor C6; The P1.2 mouth of single-chip microcomputer U1 is connected with the output terminal of humidity sensor U3, and the P1.3 mouth of single-chip microcomputer U1 is connected with common port, the resistance R 6 of transformer Tran primary side respectively with the P2.1 mouth.
As the further improvement of such scheme, this electric power management circuit comprises power supply source, electrochemical capacitor C1, capacitor C 2, triode T1, resistance R 1~R3; The positive pole of this power supply source connects respectively the positive pole of electrochemical capacitor C1, an end of capacitor C 2 and the collector of triode T1; Ground connection after the negative pole of the negative pole of this power supply source and electrochemical capacitor C1, the other end of capacitor C 2 are connected; The base stage of triode T1 is connected with the P2.0 mouth of single-chip microcomputer U1 by resistance R 1; The emitter of triode T1 is connected with resistance R 3 by resistance R 2, and resistance R 2 is connected with the P1.0 mouth of single-chip microcomputer U1 with the common port of resistance R 3, the other end ground connection of resistance R 3; The normal operation that this power supply source is microcontroller operating circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit provides electricity.Further, this power supply source is the dry cell V1~V2 of series connection.
As the further improvement of such scheme, this telecommunication circuit adopts radio communication.Preferably, this telecommunication circuit comprises wireless module U2 and corresponding peripheral auxiliary circuits thereof, and wireless module U2 connects single-chip microcomputer U1.Again preferably, wireless module U2 is the S004_CC1101 chip, and the peripheral auxiliary circuits of wireless module U2 comprises capacitor C 4~C5; 1 pin of wireless module U2 and 2 pin are respectively by capacitor C 4 and capacitor C 5 ground connection, and 3~8 pin of wireless module U2 are connected with P2.5 mouth, P2.3 mouth, P2.4 mouth, P1.6 mouth, P2.2 mouth, the P1.7 mouth of single-chip microcomputer U1 respectively.
Further improvement as such scheme, humidity sensor U3 is the HIH-5030 chip, humidity sensor U3+the Ve pin is by capacitor C 8 ground connection, and the OUT pin of humidity sensor U3 is connected by resistance R 5 ground connection and with the P1.2 mouth of single-chip microcomputer U1, humidity sensor U3-Ve ground connection.
As the further improvement of such scheme, copper dish CU diameter is not less than 10mm.
The beneficial effect that electrostatic testing apparatus of the present invention has is:
1, the size of the detected regional static of energy fast detecting;
2, can fast detecting be detected regional temperature;
3, can fast detecting be detected regional humidity;
4, self battery electric quantity can design not enough the warning;
5, collected static, temperature, humidity and battery electric quantity can be launched by wireless mode;
6, device adopts low power dissipation design, can use for a long time.
The accompanying drawing explanation
Fig. 1 is the general structure block diagram of the electrostatic testing apparatus that provides of better embodiment of the present invention.
Fig. 2 is the circuit theory diagrams of Fig. 1 electrostatic testing apparatus.
Fig. 3 is the electrostatic detection analogous diagram of Fig. 2 electrostatic testing apparatus.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 is the general structure block diagram of the electrostatic testing apparatus that provides of better embodiment of the present invention.This electrostatic testing apparatus comprises electric power management circuit 1, microcontroller operating circuit 2, telecommunication circuit (in the present embodiment, adopt radio communication circuit 3, certainly in other embodiments, also can adopt the wire communication mode), temperature sensing circuit 4, humidity measuring circuit 5, electrostatic detection circuit 6.
Electric power management circuit 1 all is connected with microcontroller operating circuit 2, radio communication circuit 3, temperature sensing circuit 4, humidity measuring circuit 5, electrostatic detection circuit 6; Microcontroller operating circuit 2 all is connected with electric power management circuit 1, radio communication circuit 3, temperature sensing circuit 4, humidity measuring circuit 5, electrostatic detection circuit 6.
Please, in conjunction with Fig. 2, Fig. 2 is the related circuit schematic diagram of Fig. 1.
This electric power management circuit 1 comprises power supply source (adopting in the present embodiment, the dry cell V1~V2 of series connection), electrochemical capacitor C1, capacitor C 2, triode T1, resistance R 1~R3.In electric power management circuit 1, after 1.5V dry cell V1~V2 series connection, the positive pole of dry cell V1 connects respectively the positive pole of electrochemical capacitor C1, an end of capacitor C 2 and the collector of triode T1.Ground connection after the negative pole of the negative pole of dry cell V2 and electrochemical capacitor C1, the other end of capacitor C 2 are connected.The base stage of triode T1 is connected with microcontroller operating circuit 2 by resistance R 1.The emitter of triode T1 is connected with resistance R 3 by resistance R 2, and resistance R 2 is connected with microcontroller operating circuit 2 with the common port of resistance R 3, the other end ground connection of resistance R 3; Dry cell V1, V2 provide power supply for the normal operation of microcontroller operating circuit 2, radio communication circuit 3, temperature sensing circuit 4, humidity measuring circuit 5, electrostatic detection circuit 6.
Microcontroller operating circuit 2 comprises single-chip microcomputer U1 and corresponding peripheral auxiliary circuits thereof, and in the present embodiment, single-chip microcomputer U1 is the MSP430G2553 chip, and the peripheral auxiliary circuits of single-chip microcomputer U1 comprises crystal oscillator X, capacitor C 3.In microcontroller operating circuit 2,1 pin of single-chip microcomputer U1 is by capacitor C 3 ground connection, the 20 pin ground connection of single-chip microcomputer U1,18 pin of single-chip microcomputer U1 are connected with 19 pin of single-chip microcomputer U1 by crystal oscillator X, the P1.6 mouth of single-chip microcomputer U1, P1.7 mouth, P2.2~P2.5 mouth are connected with radio communication circuit respectively, the P1.1 mouth of single-chip microcomputer U1 is connected with temperature sensing circuit 4, the P1.2 mouth of single-chip microcomputer U1 is connected with humidity measuring circuit 5, and the P1.3 mouth of single-chip microcomputer U1 is connected with electrostatic detection circuit 6 respectively with the P2.1 mouth.
Radio communication circuit 3 comprises wireless module U2 and corresponding peripheral auxiliary circuits thereof, and in the present embodiment, wireless module U2 is the S004_CC1101 chip, and the peripheral auxiliary circuits of wireless module U2 comprises capacitor C 4~C5.In radio communication circuit 3,1 pin of wireless module U2 and 2 pin are respectively by capacitor C 4 and capacitor C 5 ground connection; 3~8 pin of wireless module U2 are connected with P2.5 mouth, P2.3 mouth, P2.4 mouth, P1.6 mouth, P2.2 mouth, the P1.7 mouth of single-chip microcomputer U1 in microcontroller operating circuit 2 respectively.
Temperature sensing circuit 4 comprises resistance temperature detector TR, resistance R 4, capacitor C 7, electrochemical capacitor C6; The end of resistance temperature detector TR connects working power VCC via resistance R 4, an end of the other end and capacitor C 7, the negative pole of the electrochemical capacitor C6 ground connection afterwards that is connected; The positive pole of the other end of capacitor C 7, electrochemical capacitor C6 is connected with the P1.1 mouth of microcontroller operating circuit 2.Resistance temperature detector TR can be HEL-776.
Humidity measuring circuit 5 comprises humidity sensor U3, capacitor C 8, resistance R 5.In the present embodiment, humidity sensor U3 is the HIH-5030 chip, humidity sensor U3+the Ve pin is by capacitor C 8 ground connection, and the OUT pin of humidity sensor U3 is connected by resistance R 5 ground connection and with the P1.2 mouth of single-chip microcomputer U1, humidity sensor U3-Ve ground connection.
Electrostatic detection circuit 6 comprises copper dish CU(in the present embodiment, copper dish CU is the copper dish that diameter is not less than 10mm), resistance R 6~R11, varactor VD1~VD2n, transient voltage suppressor diode D2, transformer Tran, triode T2, n is positive integer.In electrostatic detection circuit 6, copper dish CU is connected with resistance R 7 by resistance R 8, resistance R 7 ground connection; The varactor that varactor VD1~VD2n is same model, n is greater than 0 integer, the frequency that to be size send with the P2.1 mouth of single-chip microcomputer U1 in microcontroller operating circuit 2, the size of powered battery voltage (being working power VCC), the characteristic of varactor itself is relevant, in one example, the frequency that the P2.1 mouth of single-chip microcomputer U1 sends is 1MHz, working power VCC is 3.3V, varactor VD1~VD2n is ZDC834A, now n=1, only have varactor VD1~VD2; Varactor VD1~VDn is parallel with one another, varactor VD (n+1)~VD2n is parallel with one another, after the negative electrode of the negative electrode of V varactor D1~VDn (being the B pin in Fig. 2) and varactor VD (n+1)~VD2n (being the B pin in Fig. 2) is connected, with negative electrode, the resistance R 8 of transient voltage suppressor diode D2, with the common port of resistance R 7, is connected; The anode of transient voltage suppressor diode D2 with an end of transformer Tran primary side, be connected (in Fig. 2, being 5 pin) after the anode of varactor VD1~VDn is connected, the anode of varactor VD (n+1)~VD2n be connected with the other end of transformer Tran primary side (being 3 pin in Fig. 2); The common port of transformer Tran primary side (being 4 pin in Fig. 2) is by resistance R 9 ground connection, and is connected with the P1.3 mouth of single-chip microcomputer U1 in microcontroller operating circuit 2; One end of transformer Tran primary side (being 1 pin in Fig. 2) is connected with resistance R 10 by resistance R 11, with the collector of triode T2, is connected simultaneously; Ground connection after the other end of transformer Tran primary side (being 2 pin in Fig. 2) is connected with the emitter of triode T2; The base stage of triode T2 is connected with the P2.1 mouth of single-chip microcomputer U1 in microcontroller operating circuit 2 by resistance R 6.
Please, in conjunction with Fig. 3, Fig. 3 is the electrostatic detection analogous diagram of Fig. 2 electrostatic testing apparatus.In the present embodiment, the frequency that the P2.1 mouth of single-chip microcomputer U1 sends is 1MHz, working power VCC is 3.3V, varactor VD1~VD2n is ZDC834A, now n=1, only have varactor VD1 and VD2, when environment static is respectively 6000V/4000V/2000V, by circuit simulating software PSpice, the electrostatic detection circuit 6 of Fig. 2 is carried out to emulation, the voltage that obtains resistance R 9 two ends is the curve in Fig. 3; As shown in Figure 3 when static changes, because change has occurred for the electric capacity of varactor VD1 and VD2, cause the terminal voltage of resistance R 9 to change, thereby can judge electrostatic potential now with crossing the maximal value that gathers resistance R 9 voltages.
The electrostatic testing apparatus course of work of the present invention is as follows:
In copper dish CU Real-time Collection environment or the electrostatic potential of electrical equipment annex; because this electrostatic potential is usually very large; thereby by resistance R 8, R7, electrostatic potential is carried out to step-down; then input the Sampling network that varactor forms; for protecting varactor not by electrostatic breakdown; adopt transient voltage suppressor diode D2 to be protected, the minimum break-down voltage of transient voltage suppressor diode D2 is no more than the breakdown reverse voltage of varactor V1~V2n.The P2.1 mouth input high frequency sinusoidal signal of single-chip microcomputer U1 is elementary by input transformer Tran after triode T2 amplifies, transformer secondary output Tran output terminal is loaded into the varactor network, when the extraneous static change in voltage, the electric capacity of varactor VD1~VD2n changes, now the high frequency sinusoidal signal is after varactor network and resistance R 9, and the voltage formed at resistance R 9 two ends changes.Detect the output voltage of resistance R 9 during the P1.3 cause for gossip of single-chip microcomputer U1, can judge size and the situation of change of extraneous static by the size that gathers this voltage.The temperature and humidity information of temperature sensor and humidity sensor Real-time Collection environment.When the P2.0 of single-chip microcomputer U1 mouth sets high level, triode T1 conducting, now the P1.0 mouth of single-chip microcomputer U1 can gather the output voltage of series dry cell V1, V2, and when dry cell V1, V2 undertension, output voltage will reduce.The electrostatic potential that this device collects, environment temperature and humidity, battery electric quantity situation are finally outwards launched by wireless module.Above function makes this device can be used for the distributed real-time detection of a certain regional electrostatic potential, and user Surveillance center only need possess the wireless transport module that the wireless module with this pick-up unit is complementary and get final product.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.

Claims (9)

1. an electrostatic testing apparatus, it is characterized in that: it comprises electric power management circuit, microcontroller operating circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit; This electric power management circuit all is connected with microcontroller operating circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit; This microcontroller operating circuit all is connected with electric power management circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit; Wherein,
This electrostatic detection circuit comprises copper dish CU, resistance R 6~R11, varactor VD1~VD2n, transient voltage suppressor diode D2, transformer Tran, triode T2, and n is positive integer; Copper dish CU is successively via resistance R 8, resistance R 7 ground connection; Varactor VD1~VDn is parallel with one another, varactor VD (n+1)~VD2n is parallel with one another, the negative electrode of varactor VD1~VDn with negative electrode, the resistance R 8 of transient voltage suppressor diode D2, with the common port of R7, be connected after the negative electrode of varactor VD (n+1)~VD2n is connected; The anode of transient voltage suppressor diode D2 with an end of transformer Tran primary side, be connected after the anode of varactor VD1~VDn is connected, the anode of varactor VD (n+1)~VD2n is connected with the other end of transformer Tran primary side; The common port of transformer Tran primary side passes through resistance R 9 ground connection, and is connected with the microcontroller operating circuit; One end of transformer Tran primary side connects working power VCC via resistance R 11, resistance R 10 successively, with the collector of triode T2, is connected simultaneously; Ground connection after the other end of transformer Tran primary side is connected with the emitter of triode T2; The base stage of triode T2 is connected with the microcontroller operating circuit by resistance R 6;
This temperature sensing circuit comprises resistance temperature detector TR, resistance R 4, capacitor C 7, electrochemical capacitor C6; The end of resistance temperature detector TR connects working power VCC via resistance R 4, an end of the other end and capacitor C 7, the negative pole of the electrochemical capacitor C6 ground connection afterwards that is connected; The positive pole of the other end of capacitor C 7, electrochemical capacitor C6 is connected with the microcontroller operating circuit;
This humidity measuring circuit comprises humidity sensor U3, capacitor C 8, resistance R 5; The ground connection termination working power VCC of humidity sensor U3 via capacitor C 8 ground connection, its output terminal is by resistance R 5 ground connection and be connected its earth terminal ground connection with the microcontroller operating circuit.
2. electrostatic testing apparatus as claimed in claim 1, it is characterized in that: this microcontroller operating circuit comprises single-chip microcomputer U1 and corresponding peripheral auxiliary circuits thereof, the common port of single-chip microcomputer U1 connection transformer Tran primary side, resistance R 6, the positive pole of electrochemical capacitor C6, the output terminal of humidity sensor U3.
3. electrostatic testing apparatus as claimed in claim 2, it is characterized in that: single-chip microcomputer U1 is the MSP430G2553 chip, the peripheral auxiliary circuits of single-chip microcomputer U1 comprises crystal oscillator X, capacitor C 3; 1 pin of single-chip microcomputer U1 is by capacitor C 3 ground connection, the 20 pin ground connection of single-chip microcomputer U1,18 pin of single-chip microcomputer U1 are connected with 19 pin of single-chip microcomputer U1 by crystal oscillator X, the P1.6 mouth of single-chip microcomputer U1, P1.7 mouth, P2.2~P2.5 mouth are connected with telecommunication circuit respectively, and the P1.1 mouth of single-chip microcomputer U1 is connected with the positive pole of electrochemical capacitor C6; The P1.2 mouth of single-chip microcomputer U1 is connected with the output terminal of humidity sensor U3, and the P1.3 mouth of single-chip microcomputer U1 is connected with common port, the resistance R 6 of transformer Tran primary side respectively with the P2.1 mouth.
4. electrostatic testing apparatus as claimed in claim 3, it is characterized in that: this electric power management circuit comprises power supply source, electrochemical capacitor C1, capacitor C 2, triode T1, resistance R 1~R3; The positive pole of this power supply source connects respectively the positive pole of electrochemical capacitor C1, an end of capacitor C 2 and the collector of triode T1; Ground connection after the negative pole of the negative pole of this power supply source and electrochemical capacitor C1, the other end of capacitor C 2 are connected; The base stage of triode T1 is connected with the P2.0 mouth of single-chip microcomputer U1 by resistance R 1; The emitter of triode T1 is connected with resistance R 3 by resistance R 2, and resistance R 2 is connected with the P1.0 mouth of single-chip microcomputer U1 with the common port of resistance R 3, the other end ground connection of resistance R 3; The normal operation that this power supply source is microcontroller operating circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit provides electricity.
5. electrostatic testing apparatus as claimed in claim 4, is characterized in that: the dry cell V1~V2 of this power supply source for connecting.
6. electrostatic testing apparatus as claimed in claim 3, is characterized in that: this telecommunication circuit employing radio communication.
7. electrostatic testing apparatus as claimed in claim 6 is characterized in that: this telecommunication circuit comprises wireless module U2 and corresponding peripheral auxiliary circuits thereof, and wireless module U2 connects single-chip microcomputer U1.
8. electrostatic testing apparatus as claimed in claim 7, it is characterized in that: wireless module U2 is the S004_CC1101 chip, and the peripheral auxiliary circuits of wireless module U2 comprises capacitor C 4~C5; 1 pin of wireless module U2 and 2 pin are respectively by capacitor C 4 and capacitor C 5 ground connection, and 3~8 pin of wireless module U2 are connected with P2.5 mouth, P2.3 mouth, P2.4 mouth, P1.6 mouth, P2.2 mouth, the P1.7 mouth of single-chip microcomputer U1 respectively.
9. electrostatic testing apparatus as claimed in claim 3, it is characterized in that: humidity sensor U3 is the HIH-5030 chip, humidity sensor U3+the Ve pin is by capacitor C 8 ground connection, the OUT pin of humidity sensor U3 is connected by resistance R 5 ground connection and with the P1.2 mouth of single-chip microcomputer U1, humidity sensor U3-Ve ground connection.10. electrostatic testing apparatus as claimed in claim 1, it is characterized in that: copper dish CU diameter is not less than 10mm.
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Publication number Priority date Publication date Assignee Title
CN105929256A (en) * 2016-06-21 2016-09-07 魏春华 Electrostatic detection device
CN107667296A (en) * 2015-06-17 2018-02-06 英特尔Ip公司 It is used for electrostatic test in orientation impulses injection microelectronics system

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CN203149795U (en) * 2012-09-10 2013-08-21 赵玉冰 Portable wireless temperature and humidity acquisition device
CN203519735U (en) * 2013-10-15 2014-04-02 中国电子科技集团公司第三十八研究所 Electrostatic detection apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6111738A (en) * 1998-05-22 2000-08-29 Diagnostic Instruments Ltd. Intrinsically safe circuits
CN102508050A (en) * 2011-11-21 2012-06-20 重庆工业自动化仪表研究所 Instrument for measuring static electricity on line
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CN203149795U (en) * 2012-09-10 2013-08-21 赵玉冰 Portable wireless temperature and humidity acquisition device
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107667296A (en) * 2015-06-17 2018-02-06 英特尔Ip公司 It is used for electrostatic test in orientation impulses injection microelectronics system
CN107667296B (en) * 2015-06-17 2021-01-05 英特尔Ip公司 Directional pulse injection in microelectronic systems for electrostatic testing
CN105929256A (en) * 2016-06-21 2016-09-07 魏春华 Electrostatic detection device

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