CN203224576U - Simple-type electromagnetic radiation detector - Google Patents
Simple-type electromagnetic radiation detector Download PDFInfo
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- CN203224576U CN203224576U CN 201320205958 CN201320205958U CN203224576U CN 203224576 U CN203224576 U CN 203224576U CN 201320205958 CN201320205958 CN 201320205958 CN 201320205958 U CN201320205958 U CN 201320205958U CN 203224576 U CN203224576 U CN 203224576U
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Abstract
The utility model discloses a simple-type electromagnetic radiation detector, comprising a battery, an inductance coil, a field-effect tube, a first slide rheostat, a second slide rheostat, a first triode, a second triode, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor, a second capacitor, a third capacitor, a light emitting diode and a switch button. The utility model employs the inductance coil connected to a grid electrode of the effect-filed tube as a sensitive element that is an antenna. When electromagnetic radiation quantity in environment reaches a certain degree, a drain electrode of the field-effect tube generates a great electromotive force. The electromotive force induces the light emitting diode to conduct and emit light after being amplified by the first triode and the second triode, so that a user can get to know that the electromagnetic radiation quantity in environment has exceeded standards, and a detection function can be achieved. The electromagnetic radiation detector constituted by a plurality of general electronic members is simple in structure, convenient in use and easy in popularization.
Description
Technical field
The utility model relates to a kind of electromagnetic radiation detector, relates in particular to a kind of simple in structure, simple type electromagnetic radiation detector of being convenient to promote.
Background technology
Along with multiple electrical equipment enters family, people will worry to be subjected to the injury of electromagnetic radiation unavoidably, but common people had not expected making by oneself a simple dingus, detect whether you and household's of entail dangers to health of electromagnetic radiation.
The special electromagnetic radiation detector is arranged in the market, be used for the electromagnetic radiation detection but mostly be professional institution or commercial company, detect effect more accurately though this equipment has, its structure and use more complicated, manufacturing cost is higher, is difficult for promoting the use of at average family.
The utility model content
The purpose of this utility model just is to provide in order to address the above problem a kind of simple in structure, simple type electromagnetic radiation detector of being convenient to promote.
The utility model is achieved through the following technical solutions above-mentioned purpose:
Simple type electromagnetic radiation detector described in the utility model comprises battery, telefault, field effect transistor, first slide rheostat, second slide rheostat, first triode, second triode, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, first electric capacity, second electric capacity, the 3rd electric capacity, light emitting diode and shift knob, one end of described telefault is connected with the grid of described field effect transistor, the other end of described telefault is connected with the sliding end of described first swept resistance, first end of described first swept resistance is connected with first end of described first resistance, the drain electrode of described field effect transistor is connected with first end of described second resistance and first end of described first electric capacity respectively, second end of described first electric capacity is connected with first end of described the 3rd resistance and the base stage of first triode respectively, the collector of described first triode is connected with first end of described the 4th resistance, second end of described the 3rd resistance is connected with first end of described second electric capacity, second end of described second electric capacity is connected with the base stage of described second triode and the sliding end of described second slide rheostat respectively, first end of described second slide rheostat is connected with first end of described the 5th resistance, second end of described second slide rheostat is connected with first end of described the 6th resistance, the emitter of described second triode is connected with the positive pole of described light emitting diode, the negative pole of described light emitting diode is connected with first end of described the 7th resistance, second end of described first resistance, second end of described second resistance, second end of described the 4th resistance, second end of described the 5th resistance, first end of the collector of described second triode and described the 3rd electric capacity is connected with first end of described shift knob respectively, second end of described shift knob is connected with the positive pole of described battery, second end of described first slide rheostat, the source electrode of described field effect transistor, the emitter of described first triode, second end of described the 6th resistance, second end of described the 7th resistance is connected with the negative pole of described battery respectively with second end of described the 3rd electric capacity.
The beneficial effects of the utility model are:
The telefault that the utility model utilization is connected with the grid of field effect transistor is antenna as sensitive element, when the amount of electromagnetic radiation in environment acquires a certain degree, to produce bigger electromotive force in the drain electrode of field effect transistor, after first triode and the amplification of second triode, cause light emitting diode conducting and luminous, thereby allow the user understand that the amount of electromagnetic radiation in the environment exceeds standard, and reaches the purpose of detection; The utility model is connected to form detector by several universal electric elements, and is simple in structure, easy to use, be convenient to promote.
Description of drawings
Fig. 1 is the circuit diagram of simple type electromagnetic radiation detector described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, simple type electromagnetic radiation detector described in the utility model comprises battery E, telefault L, field effect transistor FET, the first slide rheostat RP1, the second slide rheostat RP2, the first triode T1, the second triode T2, first resistance R 1, second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, first capacitor C 1, second capacitor C 2, the 3rd capacitor C 3, light emitting diode D and shift knob P1, the end of telefault L is connected with the grid of field effect transistor FET, the other end of telefault L is connected with the sliding end of the first swept resistance RP1, first end of the first swept resistance RP1 is connected with first end of first resistance R 1, the drain electrode of field effect transistor FET is connected with first end of second resistance R 2 and first end of first capacitor C 1 respectively, second end of first capacitor C 1 is connected with first end of the 3rd resistance R 3 and the base stage of the first triode T1 respectively, the collector of the first triode T2 is connected with first end of the 4th resistance R 4, second end of the 3rd resistance R 3 is connected with first end of second capacitor C 2, second end of second capacitor C 2 is connected with the base stage of the second triode T2 and the sliding end of the second slide rheostat RP2 respectively, first end of the second slide rheostat RP2 is connected with first end of the 5th resistance R 5, second end of the second slide rheostat RP2 is connected with first end of the 6th resistance R 6, the emitter of the second triode T2 is connected with the positive pole of light emitting diode D, the negative pole of light emitting diode D is connected with first end of the 7th resistance R 7, second end of first resistance R 1, second end of second resistance R 2, second end of the 4th resistance R 4, second end of the 5th resistance R 5, first end of the collector of the second triode T2 and the 3rd capacitor C 3 is connected with first end of shift knob P1 respectively, second end of shift knob P2 is connected with the positive pole of battery E, second end of the first slide rheostat RP1, the source electrode of field effect transistor FET, the emitter of the first triode T1, second end of the 6th resistance R 6, second end of second end of the 7th resistance R 7 and the 3rd capacitor C 3 is connected with the negative pole of battery E respectively.
As shown in Figure 1, the principle of work of simple type electromagnetic radiation detector described in the utility model is as follows: the radiation source A(in the room such as mobile phone, computer, micro-wave oven etc.) amount of electromagnetic radiation when acquiring a certain degree, to produce bigger electromotive force in the drain electrode of field effect transistor FET, the signal that is exaggerated on first end of second resistance R 2 is delivered to the base stage of the first triode T1 through first capacitor C 1, if when testing with oscillograph, can see voltage waveform more than the 100mV at the collector of the first triode T1.Second capacitor C 2 is coupling capacitances, and the signal after it amplifies the first triode T1 is delivered to the second triode T2, plays the effect of stopping direct current simultaneously again.The base stage of the second triode T2 is set up bias voltage by fixing the 5th resistance R 5, the 6th resistance R 6 and the second adjustable resistance device RP2, can make the second triode T2 reach radiationless cut off, thereby extinguish light emitting diode D, when radiation reaches certain intensity, the negative half-wave of the first triode T1 output signal is the conducting second triode T2, thereby lights light emitting diode D.But the electric current of the 7th resistance R 7 restricted passage light emitting diode D.Because detecting device just is used for judging the radiation pollution scope, so a simple shift knob P1 will be set.The 3rd capacitor C 3 is made power filter and is used.
Claims (1)
1. simple type electromagnetic radiation detector, comprise battery, telefault, field effect transistor, first slide rheostat, second slide rheostat, first triode, second triode, first resistance, second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, first electric capacity, second electric capacity, the 3rd electric capacity, light emitting diode and shift knob, one end of described telefault is connected with the grid of described field effect transistor, the other end of described telefault is connected with the sliding end of described first swept resistance, first end of described first swept resistance is connected with first end of described first resistance, the drain electrode of described field effect transistor is connected with first end of described second resistance and first end of described first electric capacity respectively, second end of described first electric capacity is connected with first end of described the 3rd resistance and the base stage of first triode respectively, the collector of described first triode is connected with first end of described the 4th resistance, second end of described the 3rd resistance is connected with first end of described second electric capacity, second end of described second electric capacity is connected with the base stage of described second triode and the sliding end of described second slide rheostat respectively, first end of described second slide rheostat is connected with first end of described the 5th resistance, second end of described second slide rheostat is connected with first end of described the 6th resistance, the emitter of described second triode is connected with the positive pole of described light emitting diode, the negative pole of described light emitting diode is connected with first end of described the 7th resistance, second end of described first resistance, second end of described second resistance, second end of described the 4th resistance, second end of described the 5th resistance, first end of the collector of described second triode and described the 3rd electric capacity is connected with first end of described shift knob respectively, second end of described shift knob is connected with the positive pole of described battery, second end of described first slide rheostat, the source electrode of described field effect transistor, the emitter of described first triode, second end of described the 6th resistance, second end of described the 7th resistance is connected with the negative pole of described battery respectively with second end of described the 3rd electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320205958 CN203224576U (en) | 2013-04-23 | 2013-04-23 | Simple-type electromagnetic radiation detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320205958 CN203224576U (en) | 2013-04-23 | 2013-04-23 | Simple-type electromagnetic radiation detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203224576U true CN203224576U (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320205958 Expired - Fee Related CN203224576U (en) | 2013-04-23 | 2013-04-23 | Simple-type electromagnetic radiation detector |
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| Country | Link |
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| CN (1) | CN203224576U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106922045A (en) * | 2017-02-23 | 2017-07-04 | 陶曙 | A kind of microwave leakage can detect circuit and microwave oven safety management-control method |
| CN112285436A (en) * | 2020-11-08 | 2021-01-29 | 湖南省福晶电子有限公司 | Radiation detection system for electronic component |
-
2013
- 2013-04-23 CN CN 201320205958 patent/CN203224576U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106922045A (en) * | 2017-02-23 | 2017-07-04 | 陶曙 | A kind of microwave leakage can detect circuit and microwave oven safety management-control method |
| CN106922045B (en) * | 2017-02-23 | 2020-06-05 | 陶曙 | Microwave energy leakage detection circuit and microwave oven safety control method |
| CN112285436A (en) * | 2020-11-08 | 2021-01-29 | 湖南省福晶电子有限公司 | Radiation detection system for electronic component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20140423 |