CN103499749B - A kind of electrostatic testing apparatus - Google Patents
A kind of electrostatic testing apparatus Download PDFInfo
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- CN103499749B CN103499749B CN201310482444.9A CN201310482444A CN103499749B CN 103499749 B CN103499749 B CN 103499749B CN 201310482444 A CN201310482444 A CN 201310482444A CN 103499749 B CN103499749 B CN 103499749B
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Abstract
The present invention proposes a kind of electrostatic testing apparatus, it microcontroller operating circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit of comprising electric power management circuit and being all connected with electric power management circuit.Microcontroller operating circuit is all connected with electric power management circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit.This electrostatic detection circuit comprises copper dish CU, resistance R6 ~ R11, varactor VD1 ~ VD2n, transient voltage suppressor diode D2, transformer Tran, triode T2, n are positive integer.Temperature sensing circuit comprises resistance temperature detector TR, resistance R4, electric capacity C7, electrochemical capacitor C6.Humidity measuring circuit comprises humidity sensor U3, electric capacity C8, resistance R5.The present invention can be detected the temperature and humidity of area or detected equipment appurtenance electrostatic potential size and environment by Real-time Collection.
Description
Technical field
The present invention relates to a kind of pick-up unit, particularly a kind of electrostatic testing fixture.
Background technology
The effect of earthing device mainly prevents 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 runs, and is 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 all directly having influence on system and equipment of earthing device runs.Once there is imperfect earth in electrical equipment, the gathering of a large amount of electrostatic can threaten to equipment and staff; And when electrostatic reaches certain value, likely cause equipment failure even fire because of static discharge, thus cause the loss being 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 judge.Electrical equipment is widely distributed, from city to small towns, arrive field indoor to have, if carry out periodic detection by the artificial mode surveying stake resistance, waste a large amount of human and material resources and time on the one hand, on the other hand because the fault of earthing device is usually with very large contingency and randomness, thus real-time monitoring cannot be accomplished.
In addition also have a lot to the highstrung working environment of electrostatic, field of petrochemical industry, along with the development of accumulating industry, flow velocity, the flow of oil product conveying improve constantly, and the electrostatic accident caused thus also gets more and more.Under these circumstances, electrostatic swims in the air usually together with other particles, is difficult to the electrostatic distribution being judged whole working environment by certain any electrostatic.
Based on above situation, develop a kind of small-sized low-power consumption, and can the equipment of long-term on-line checkingi electrostatic be necessary.The generation of electrostatic itself is a dynamic process with releasing, and very large by the impact of environment temperature, humidity, if thus can increase temperature and humidity parameter in electrostatic detection equipment, will greatly increase the reliability to detected 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 this electrostatic testing apparatus can be detected the temperature and humidity of area or detected equipment appurtenance electrostatic potential size and environment by Real-time Collection, and the data detected can be transferred 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 is all connected with microcontroller operating circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit; This microcontroller operating circuit is all 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 R6 ~ R11, varactor VD1 ~ VD2n, transient voltage suppressor diode D2, transformer Tran, triode T2, n are positive integer; Copper dish CU is successively via resistance R8, resistance R7 ground connection; Varactor VD1 ~ VDn is parallel with one another, varactor VD (n+1) ~ VD2n is parallel with one another, is connected after the negative electrode of varactor VD1 ~ VDn is connected with the negative electrode of varactor VD (n+1) ~ VD2n with the negative electrode of transient voltage suppressor diode D2, the common port of resistance R8 and R7; Be connected with one end of transformer Tran primary side after the anode of transient voltage suppressor diode D2 is connected with the anode of varactor VD1 ~ VDn, 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 by resistance R9 ground connection, and is connected with microcontroller operating circuit; One end of transformer Tran primary side connects working power VCC via resistance R11, resistance R10 successively, is connected with the collector of triode T2 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 microcontroller operating circuit by resistance R6;
This temperature sensing circuit comprises resistance temperature detector TR, resistance R4, electric capacity C7, electrochemical capacitor C6; One end of resistance temperature detector TR connects working power VCC via resistance R4, ground connection after the other end is connected with one end of electric capacity C7, the negative pole of electrochemical capacitor C6; The other end of electric capacity C7, the positive pole of electrochemical capacitor C6 are connected with microcontroller operating circuit;
This humidity measuring circuit comprises humidity sensor U3, electric capacity C8, resistance R5; The power supply termination working power VCC of humidity sensor U3 via electric capacity C8 ground connection, its output terminal is by resistance R5 ground connection and be connected with microcontroller operating circuit, its earth terminal ground connection.
As the further improvement of such scheme, this microcontroller operating circuit comprises single-chip microcomputer U1 and corresponding peripheral auxiliary circuits thereof, common port, resistance R6, the positive pole of electrochemical capacitor C6, the output terminal of humidity sensor U3 of single-chip microcomputer U1 connection transformer Tran primary side.Preferably, single-chip microcomputer U1 is MSP430G2553 chip, and the peripheral auxiliary circuits of single-chip microcomputer U1 comprises crystal oscillator X, electric capacity C3; 1 pin of single-chip microcomputer U1 is by electric capacity C3 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 and P2.1 mouth are connected with the common port of transformer Tran primary side, resistance R6 respectively.
As the further improvement of such scheme, this electric power management circuit comprises power supply source, electrochemical capacitor C1, electric capacity C2, triode T1, resistance R1 ~ R3; The positive pole of this power supply source connects the collector of the positive pole of electrochemical capacitor C1, one end of electric capacity C2 and triode T1 respectively; Ground connection after the negative pole of this power supply source is connected with the other end of the negative pole of electrochemical capacitor C1, electric capacity C2; The base stage of triode T1 is connected with the P2.0 mouth of single-chip microcomputer U1 by resistance R1; The emitter of triode T1 is connected with resistance R3 by resistance R2, and resistance R2 is connected with the P1.0 mouth of single-chip microcomputer U1 with the common port of resistance R3, the other end ground connection of resistance R3; This power supply source is microcontroller operating circuit, the normal work of 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 S004_CC1101 chip, and the peripheral auxiliary circuits of wireless module U2 comprises electric capacity C4 ~ C5; 1 pin of wireless module U2 and 2 pin are respectively by electric capacity C4 and electric capacity C5 ground connection, and 3 ~ 8 pin of wireless module U2 are connected with the P2.5 mouth of single-chip microcomputer U1, P2.3 mouth, P2.4 mouth, P1.6 mouth, P2.2 mouth, P1.7 mouth respectively.
As the further improvement of such scheme, humidity sensor U3 is HIH-5030 chip, + Ve the pin of humidity sensor U3 is by electric capacity C8 ground connection, and the OUT pin of humidity sensor U3 is connected by resistance R5 ground connection and with the P1.2 mouth of single-chip microcomputer U1 ,-Ve the ground connection of humidity sensor U3.
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 detected region electrostatic can be detected fast;
2, the temperature in detected region can be detected fast;
3, the humidity in detected region can be detected fast;
4, its cells electricity can design not enough warning;
5, collected electrostatic, temperature, humidity and battery electric quantity wirelessly can be launched;
6, device adopts low power dissipation design, can Long-Time Service.
Accompanying drawing explanation
Fig. 1 is the general structure block diagram of the electrostatic testing apparatus that better embodiment of the present invention provides.
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 object of the present invention, technical scheme and advantage clearly understand, 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, be not intended to limit the present invention.
Fig. 1 is the general structure block diagram of the electrostatic testing apparatus that better embodiment of the present invention provides.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 wire communication mode), temperature sensing circuit 4, humidity measuring circuit 5, electrostatic detection circuit 6.
Electric power management circuit 1 is all 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 is all connected with electric power management circuit 1, radio communication circuit 3, temperature sensing circuit 4, humidity measuring circuit 5, electrostatic detection circuit 6.
Incorporated by reference to the related circuit schematic diagram that Fig. 2, Fig. 2 are Fig. 1.
This electric power management circuit 1 comprises power supply source (in the present embodiment, adopting the dry cell V1 ~ V2 of series connection), electrochemical capacitor C1, electric capacity C2, triode T1, resistance R1 ~ R3.In electric power management circuit 1, after 1.5V dry cell V1 ~ V2 connects, the positive pole of dry cell V1 connects the positive pole of electrochemical capacitor C1, one end of electric capacity C2 and the collector of triode T1 respectively.Ground connection after the negative pole of dry cell V2 is connected with the other end of the negative pole of electrochemical capacitor C1, electric capacity C2.The base stage of triode T1 is connected with microcontroller operating circuit 2 by resistance R1.The emitter of triode T1 is connected with resistance R3 by resistance R2, and resistance R2 is connected with microcontroller operating circuit 2 with the common port of resistance R3, the other end ground connection of resistance R3; Dry cell V1, V2 are microcontroller operating circuit 2, the normal work of radio communication circuit 3, temperature sensing circuit 4, humidity measuring circuit 5, electrostatic detection circuit 6 provides power supply.
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 MSP430G2553 chip, and the peripheral auxiliary circuits of single-chip microcomputer U1 comprises crystal oscillator X, electric capacity C3.In microcontroller operating circuit 2,1 pin of single-chip microcomputer U1 is by electric capacity C3 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 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 S004_CC1101 chip, and the peripheral auxiliary circuits of wireless module U2 comprises electric capacity C4 ~ C5.In radio communication circuit 3,1 pin of wireless module U2 and 2 pin are respectively by electric capacity C4 and electric capacity C5 ground connection; 3 ~ 8 pin of wireless module U2 are connected with the P2.5 mouth of the single-chip microcomputer U1 in microcontroller operating circuit 2, P2.3 mouth, P2.4 mouth, P1.6 mouth, P2.2 mouth, P1.7 mouth respectively.
Temperature sensing circuit 4 comprises resistance temperature detector TR, resistance R4, electric capacity C7, electrochemical capacitor C6; One end of resistance temperature detector TR connects working power VCC via resistance R4, ground connection after the other end is connected with one end of electric capacity C7, the negative pole of electrochemical capacitor C6; The other end of electric capacity C7, the positive pole of electrochemical capacitor C6 are 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, electric capacity C8, resistance R5.In the present embodiment, humidity sensor U3 is HIH-5030 chip, and+Ve the pin of humidity sensor U3 is by electric capacity C8 ground connection, and the OUT pin of humidity sensor U3 is connected by resistance R5 ground connection and with the P1.2 mouth of single-chip microcomputer U1 ,-Ve the ground connection of humidity sensor U3.
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 R6 ~ R11, varactor VD1 ~ VD2n, transient voltage suppressor diode D2, transformer Tran, triode T2, n be positive integer.In electrostatic detection circuit 6, copper dish CU is connected with resistance R7 by resistance R8, resistance R7 ground connection; Varactor VD1 ~ VD2n is the varactor of same model, n be greater than 0 integer, be the P2.1 mouth of the single-chip microcomputer U1 in size and microcontroller operating circuit 2 send frequency, battery power voltage (i.e. working power VCC) size, 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, namely only has varactor VD1 ~ VD2; Varactor VD1 ~ VDn is parallel with one another, varactor VD (n+1) ~ VD2n is parallel with one another, is connected after the negative electrode (being B pin in Fig. 2) of V varactor D1 ~ VDn is connected with the negative electrode (being B pin in Fig. 2) of varactor VD (n+1) ~ VD2n with the negative electrode of transient voltage suppressor diode D2, resistance R8 with the common port of resistance R7; Be connected with one end of transformer Tran primary side (being 5 pin in Fig. 2) after the anode of transient voltage suppressor diode D2 is connected with the anode of varactor VD1 ~ VDn, the anode of varactor VD (n+1) ~ VD2n is connected with the other end of transformer Tran primary side (being 3 pin in Fig. 2); The common port (being 4 pin in Fig. 2) of transformer Tran primary side by resistance R9 ground connection, and is connected with the P1.3 mouth of the single-chip microcomputer U1 in microcontroller operating circuit 2; One end (being 1 pin in Fig. 2) of transformer Tran primary side is connected with resistance R10 by resistance R11, is connected with the collector of triode T2 simultaneously; Ground connection after the other end (being 2 pin in Fig. 2) of transformer Tran primary side is connected with the emitter of triode T2; The base stage of triode T2 is connected with the P2.1 mouth of the single-chip microcomputer U1 in microcontroller operating circuit 2 by resistance R6.
Incorporated by reference to the electrostatic detection analogous diagram that Fig. 3, Fig. 3 are 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, namely only has varactor VD1 and VD2, when environment electrostatic is respectively 6000V/4000V/2000V, by circuit simulating software PSpice, the electrostatic detection circuit 6 of Fig. 2 is emulated, obtain the curve in the voltage at resistance R9 two ends and Fig. 3; As shown in Figure 3 when electrostatic changes, because the electric capacity of varactor VD1 and VD2 there occurs change, cause the terminal voltage of resistance R9 to change, thus the same maximal value crossing collection resistance R9 voltage can judge electrostatic potential now.
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; thus by resistance R8, R7, step-down is carried out to electrostatic potential; then input the Sampling network of varactor composition; for protection varactor is not by electrostatic breakdown; adopt transient voltage suppressor diode D2 to protect, 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 varactor network, when extraneous static change in voltage, the electric capacity of varactor VD1 ~ VD2n changes, now high frequency sinusoidal signal is after varactor network and resistance R9, and the voltage formed at resistance R9 two ends changes.Detect the output voltage of resistance R9 during the P1.3 cause for gossip of single-chip microcomputer U1, size and the situation of change of extraneous static can be judged by the size gathering this voltage.The temperature and humidity information of temperature sensor and humidity sensor Real-time Collection environment.When the P2.0 mouth of single-chip microcomputer U1 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 outwards launched finally by wireless module.Above function makes this device can be used for the distributed real-time detection of a certain region electrostatic potential, and user Surveillance center only need possess the wireless transport module matched with the wireless module of this pick-up unit.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an electrostatic testing apparatus, 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 is all connected with microcontroller operating circuit, telecommunication circuit, temperature sensing circuit, humidity measuring circuit, electrostatic detection circuit; This microcontroller operating circuit is all 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 R6 ~ R11, varactor VD1 ~ VD2n, transient voltage suppressor diode D2, transformer Tran, triode T2, n are positive integer; Copper dish CU is successively via resistance R8, resistance R7 ground connection; Varactor VD1 ~ VDn is parallel with one another, varactor VD (n+1) ~ VD2n is parallel with one another, is connected after the negative electrode of varactor VD1 ~ VDn is connected with the negative electrode of varactor VD (n+1) ~ VD2n with the negative electrode of transient voltage suppressor diode D2, the common port of resistance R8 and R7; Be connected with one end of transformer Tran primary side after the anode of transient voltage suppressor diode D2 is connected with the anode of varactor VD1 ~ VDn, 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 by resistance R9 ground connection, and is connected with microcontroller operating circuit; One end of transformer Tran primary side connects working power VCC via resistance R11, resistance R10 successively, is connected with the collector of triode T2 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 microcontroller operating circuit by resistance R6;
This temperature sensing circuit comprises resistance temperature detector TR, resistance R4, electric capacity C7, electrochemical capacitor C6; One end of resistance temperature detector TR connects working power VCC via resistance R4, ground connection after the other end is connected with one end of electric capacity C7, the negative pole of electrochemical capacitor C6; The other end of electric capacity C7, the positive pole of electrochemical capacitor C6 are connected with microcontroller operating circuit;
This humidity measuring circuit comprises humidity sensor U3, electric capacity C8, resistance R5; The power supply termination working power VCC of humidity sensor U3 via electric capacity C8 ground connection, its output terminal is by resistance R5 ground connection and be connected with microcontroller operating circuit, its earth terminal ground connection.
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, common port, resistance R6, the positive pole of electrochemical capacitor C6, the output terminal of humidity sensor U3 of single-chip microcomputer U1 connection transformer Tran primary side.
3. electrostatic testing apparatus as claimed in claim 2, it is characterized in that: single-chip microcomputer U1 is MSP430G2553 chip, the peripheral auxiliary circuits of single-chip microcomputer U1 comprises crystal oscillator X, electric capacity C3; 1 pin of single-chip microcomputer U1 is by electric capacity C3 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 and P2.1 mouth are connected with the common port of transformer Tran primary side, resistance R6 respectively.
4. electrostatic testing apparatus as claimed in claim 3, is characterized in that: this electric power management circuit comprises power supply source, electrochemical capacitor C1, electric capacity C2, triode T1, resistance R1 ~ R3; The positive pole of this power supply source connects the collector of the positive pole of electrochemical capacitor C1, one end of electric capacity C2 and triode T1 respectively; Ground connection after the negative pole of this power supply source is connected with the other end of the negative pole of electrochemical capacitor C1, electric capacity C2; The base stage of triode T1 is connected with the P2.0 mouth of single-chip microcomputer U1 by resistance R1; The emitter of triode T1 is connected with resistance R3 by resistance R2, and resistance R2 is connected with the P1.0 mouth of single-chip microcomputer U1 with the common port of resistance R3, the other end ground connection of resistance R3; This power supply source is microcontroller operating circuit, the normal work of 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: this power supply source is the dry cell V1 ~ V2 of series connection.
6. electrostatic testing apparatus as claimed in claim 3, is characterized in that: this telecommunication circuit adopts 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 S004_CC1101 chip, the peripheral auxiliary circuits of wireless module U2 comprises electric capacity C4 ~ C5; 1 pin of wireless module U2 and 2 pin are respectively by electric capacity C4 and electric capacity C5 ground connection, and 3 ~ 8 pin of wireless module U2 are connected with the P2.5 mouth of single-chip microcomputer U1, P2.3 mouth, P2.4 mouth, P1.6 mouth, P2.2 mouth, P1.7 mouth respectively.
9. electrostatic testing apparatus as claimed in claim 3, it is characterized in that: humidity sensor U3 is HIH-5030 chip, + Ve the pin of humidity sensor U3 is by electric capacity C8 ground connection, the OUT pin of humidity sensor U3 is connected by resistance R5 ground connection and with the P1.2 mouth of single-chip microcomputer U1 ,-Ve the ground connection of humidity sensor U3.
10. electrostatic testing apparatus as claimed in claim 1, is characterized in that: copper dish CU diameter is not less than 10mm.
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| WO2016204749A1 (en) * | 2015-06-17 | 2016-12-22 | Intel Corporation | Directional pulse injection into a microelectronic system for electrostatic test |
| CN105929256A (en) * | 2016-06-21 | 2016-09-07 | 魏春华 | Electrostatic detection device |
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| 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 |
| CN202562514U (en) * | 2012-02-02 | 2012-11-28 | 山东正晨科技有限公司 | Digital temperature and humidity detection device |
| 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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| 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 |
| CN202562514U (en) * | 2012-02-02 | 2012-11-28 | 山东正晨科技有限公司 | Digital temperature and humidity detection device |
| 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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