CN2036277U - Non-contact multipurpose electronic electricity measurer - Google Patents

Abstract

The utility model relates to a multifunctional electronic electricity measurer which is composed of a magnetic induction component, a power amplification circuit, a lighting circuit, a rectifying circuit, an amplifying circuit, an audio circuit, etc. The utility model can measure static electricity, low tension, high tension and extra-high voltage under the circumstance of no contact and can measure the breakpoint of a conducting wire, the burial ground of a high-tension cable, etc. Meanwhile, the utility model can be used for electric illumination, an electronic door bell, water boiling alarm, natural gas leakage alarm, alcoholic odor alarm, anti-sleep alarm for drivers, etc. and is a portable, safe, reliable and ideal multifunctional device.

Description

Non-contact multipurpose electronic electricity measurer

The utility model belongs to the electrical instrument.

Detector is a necessary tool in appliance field, can guarantee the safety of electricity consumption with it, and can make accurately guilty culprit and judging.Present used detector mostly is a test pencil, and not only function is few and use dangerous." the contactless multi-functional test pencil " of Chinese patent CN86210931U bulletin, possesses the contactless function of surveying electricity and miniature electric torch, though improved the security of using, but still exist not enough in actual applications, when under strong illumination, measured object being detected, be difficult for the light of seeing that diode sends, and when working at night, mini flashlight and test pencil can not use simultaneously, so very inconvenience during work.

The purpose of this utility model is to provide a kind of static of can surveying can survey again, and detect safe, reliable, highly sensitive, applied range, multiple functional electricity measurer, characteristics such as that this electricity measurer also should possess is low in energy consumption, volume is little, be easy to carry and can report to the police.

Its circuit structure of the electricity measurer that the utility model provides as shown in Figure 1, it comprises the fet BG that a source electrode links to each other with power cathode ₁, positive pole links to each other with power positive end, negative pole and power amplification triode BG ₄The LED that links to each other of collector.At bulb D of direct supply two ends cross-over connection, it is characterized in that it comprises that one 5 pin links to each other with power positive end, 7 pin link to each other with power supply negative terminal, 3 pin and above-mentioned power discharging transistor BG ₄The domestic general KD type CMOS integrated circuit audio-frequency generator that links to each other of base stage, comprise two signal amplifying triode BG ₂, BG ₄, BG wherein ₃Emitter link to each other with 2 pin of above-mentioned CMOS integrated package, at BG ₃Collector and positive source between also be connected to a resistance R ₁, be used for the collector overload protection, BG ₃Base stage and BG ₂Emitter link to each other to link to each other BG ₂Collector link to each other with positive source, it also comprises a negative pole and BG in addition ₂Base stage link to each other, anodal and above-mentioned field effect transistor BG ₁The detection diode D that links to each other of drain electrode ₁, a biasing resistor R ₁, sensitivity potentiometer W, K switch ₁And K ₂, sounding component and function extension C, wherein a R ₁One be terminated at diode D ₁Positive pole, the other end joins with sensitivity potentiometer W, the other end of potentiometer W links to each other with positive source, one of sounding component is terminated at above-mentioned power discharging transistor BG ₄Emitter, the other end joins with sensitivity potentiometer W, the other end of potentiometer W links to each other with positive source, one of sounding component is terminated at above-mentioned power discharging transistor BG ₄Emitter, the other end links to each other with power cathode, one of function extension C is terminated at 2 pin of CMOS integrated package, the other end is connected to positive source, K switch ₁Be connected in the audio amplifier circuit, K ₂Be connected in the lighting circuit.The principle of work of this electricity measurer is: any conductive body as long as be added with alternating voltage on it, will generate an electromagnetic field around it and outside radiated electromagnetic wave.So when with this electricity measurer when the testee, the faint electromagnetic wave that is given off by conducting objects is promptly by fet BG ₁Grid induction, make between source, drain electrode and produce small change in electric, this signal is added between the both positive and negative polarity of diode, makes diode D ₁Conducting.Become the signal of direct impulse by triode BG through behind the diode detection ₂, BG ₃Be defeated by CMOS integrated circuit audio-frequency generator after amplifying, be defeated by power amplification triode BG again by the signal that this generator comes out ₄Promote, acoustical generator sounding and lumination of light emitting diode, prove that this conductor is charged this moment, noiseless unglazed as this electricity measurer, proves that measured conductor does not have; During near the object of static electrification, can report to the police by luminous and sounding type, after the sensitivity of adjustment potentiometer W, can be in the existence of measuring high pressure or extra-high voltage than distant location, with the induction part bit alignment ground of this electricity measurer and when acoustic luminous, can measure this place and be embedded with high-tension cable.Close the electricity measurer K switch ₁The plug of doorbell button switch one end is equipped with, insert in the function docking station, promptly become electronic door bell, in the function docking station, change the band gas-sensing probe plug, can survey gas leak or alcohol smell, change and have the plug that the anti-probe of sleeping is arranged, can be used as the anti-device of sleeping of driver and use; Change the plug that has temp probe and can make alarm for boiling water, press K switch ₂Bulb is bright promptly to be used as the illumination torch.

Effect of the present utility model is that the novel electricity measurer that is provided not only realized luminous, sounding and while are as illuminating function, but also realized measuring high pressure outward at certain safe distance, the charged thing of UHV (ultra-high voltage), and where bury fully high pressure underground, the function of extra-high-tension cable, realized the fire that causes because of static in addition and jeopardized the function that life safety has been done warning, also is furnished with other multiple measuring head by the function extension socket, be used for: electronic door bell, water is opened the alarm gas leakage alarm, the driver is anti-to sleep and reports to the police and the traffic policeman checks that the driver drivings a car under the influence of alcohol, thereby has reached goal of the invention of the present utility model.Therefore, of the present utility model contactless many be electricity measurer and the safety alarm of carrying with electricity measurer, still comparatively desirable multi-functional apparatus.

Fig. 1 is a circuit structure diagram of the present utility model.

Narrate a most preferred embodiment of the present utility model below in conjunction with accompanying drawing: BG among the figure ₁Be that a domestic universal models is the fet of 3DJ6, BG ₂Be that domestic universal models is 9011, BG ₃Be that domestic universal models is 9013, BG ₄Be that domestic universal models is 3DG ₁₂Triode, D ₁Be that domestic universal models is the diode of 2AP9, sounding component is the loudspeaker in one two inch 8 Europe, and CMOS is that an audio-frequency generator is domestic general KD type, K ₁Be direct-push microswitch, K ₂Be pushbutton switch, W is 1/8 watt 33 kilo-ohms a potentiometer, R ₁Be 1/8 watt 2.5 kilo-ohms resistance, R ₂Be 1/8 watt 3 kilo-ohms resistance, C is the receiver jack of φ 3.5mm, and D is 2.2 volts a bulb, and used direct supply is two No. 5 batteries.The form of interconnecting between above-mentioned each element adopts the described type of attachment of the 5th part in this instructions.

Claims (3)

1, a kind ofly use the contactless electronic electricity measurer, it comprises the fet BG that a source electrode links to each other with power cathode, drain electrode links to each other with positive source more ₁, positive pole links to each other with power positive end, negative pole and power amplification triode BG ₄The LED that links to each other of collector, at small electric bulb D of the two ends of direct supply cross-over connection, of the present utility modelly be characterised in that it also comprises: one 5 pin links to each other with power positive end, 7 pin link to each other with power supply negative terminal, 3 pin and above-mentioned power amplification triode BG ₄The domestic general KD type integrated circuit audio-frequency generator CMOS that links to each other of base stage, two signal amplifying triode BG ₂, BG ₃, BG wherein ₃Emitter link to each other with 2 pin of above-mentioned integrated package CMOS, at BG ₃Collector and positive source between be connected to a collector load resistor R ₂, BG ₃Base stage and BG ₂Emitter link to each other BG ₂Collector link to each other negative pole and BG with positive source ₂Base stage link to each other anodal and above-mentioned fet BG ₁The detector diode D that is connected of drain electrode ₁, an other biasing resistor R ₁An end and diode D ₁Positive pole link to each other, the other end links to each other with sensitivity potentiometer W, an end of sounding component and power amplification triode BG ₄Emitter link to each other, the other end links to each other with power cathode, an end of expanding the socket C of usefulness as function links to each other with 2 pin of CMOS integrated package, the other end links to each other with positive source, K switch ₁Be connected in the preposition amplifying return circuit, K ₂Be serially connected with in the lighting circuit.

2, electronics electricity measurer according to claim 1 is characterized in that above-mentioned sounding component is the Microspeaker of 8 ohm of one two inch.

3, electronics electricity measurer according to claim 1 and 2 is characterized in that above-mentioned resistance R ₁, R ₂, W power be 1/8 watt, resistance is respectively 1 kilo-ohm, 3 kilo-ohms and 33 kilo-ohms.