CN204694781U - A kind of portable multi-function electromagnetic field intensity tester - Google Patents
A kind of portable multi-function electromagnetic field intensity tester Download PDFInfo
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- CN204694781U CN204694781U CN201520475161.6U CN201520475161U CN204694781U CN 204694781 U CN204694781 U CN 204694781U CN 201520475161 U CN201520475161 U CN 201520475161U CN 204694781 U CN204694781 U CN 204694781U
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Abstract
The utility model relates to a kind of portable multi-function electromagnetic field intensity tester, comprising: main control module, signal acquisition module, signal amplification module, analog-to-digital conversion module, display module, alarm module; Main control module comprises STC89C52RC single-chip microcomputer; Signal acquisition module comprises telefault; Signal amplification module comprises LM318 operational amplification circuit; Analog-to-digital conversion module comprises PCF8591 analog to digital conversion circuit; Display module comprises LCD1602 liquid crystal display; Alarm module comprises hummer, LED.The utility model realizes the accurate measurement rapidly and efficiently of spatial electromagnetic field intensity, and whole equipment volume is small and exquisite, is easy to carry, with low cost, and measuring accuracy is high, and structure is simple, stable work in work; The measurement to electric field intensity and magnetic field intensity can be realized simultaneously, and carry out numerical monitor by LCD screen.
Description
Technical field
The utility model relates to electromagnetic measurement device technical field, is specially a kind of portable multi-function electromagnetic field intensity tester.
Background technology
In the middle of the space of our life, there is a large amount of electromagnetic waves, we utilize it to realize radio communication, navigation etc., are people's service.But excessively strong electromagnetic radiation has great harm to the mankind and various other biological, can impact health, biological producer even can be caused to suddenly change.Therefore, we need to measure electromagnetism intensity, effectively monitor the various electromagnetic pollutions existed in environment; The humans and animals be in harmful radiation environment is sounded a warning, prevents its raying from injuring.Existing electromagnetism intensity tester cost is high, expensive, precision and insufficient sensitivity high, complex structure, easily breaks down, and serviceable life falls short of.
Utility model content
The utility model object is to provide a kind of portable multi-function electromagnetic field intensity tester, with solve in the market most of electromagnetism intensity tester precision and insufficient sensitivity high, do not possess digital displaying function, complex structure, the problem easily broken down, this device is control core with single-chip microcomputer, take telefault as signal acquisition module, radiation intensity in environment is detected, corresponding alarm sound can be sent by hummer simultaneously.
For achieving the above object, the utility model solves the technical scheme that its technical matters adopts: a kind of portable multi-function electromagnetic field intensity tester, comprising: main control module, signal acquisition module, signal amplification module, analog-to-digital conversion module, display module, alarm module; Main control module comprises STC89C52RC single-chip microcomputer; Signal acquisition module comprises telefault; Signal amplification module comprises LM318 operational amplification circuit; Analog-to-digital conversion module comprises PCF8591 analog to digital conversion circuit; Display module comprises LCD1602 liquid crystal display; Alarm module comprises hummer, LED.Signal acquisition module and signal amplification module are electrically connected; Signal amplification module and analog-to-digital conversion module are electrically connected; Analog-to-digital conversion module and single-chip microcomputer are electrically connected; Display module and single-chip microcomputer are electrically connected; Hummer, LED and single-chip microcomputer are electrically connected.
Described STC89C52RC single-chip microcomputer is responsible for receiving PCF8591 analog to digital conversion circuit signal, calculates and control signal output.
Described telefault is used for inductive spacing electromagnetic radiation intensity, and radiation intensity is larger, and the electric current induced is also larger.
The electric current that described LM318 operational amplification circuit is responsible for telefault induces amplifies, so that follow-up analog to digital conversion and calculation process.
The current signal that described PCF8591 analog to digital conversion circuit is responsible for signal amplification module exports carries out analog to digital conversion, the current signal of simulation is converted to digital signal, so that the process of single-chip microcomputer and computing.
Described LCD1602 liquid crystal display be responsible for display survey the data such as electromagnetism intensity, displayed value is numeral.
Described hummer is responsible for sending corresponding warning and prompt tone, and LED can make corresponding warning blinking action.
The utility model carrys out inductive spacing electromagnetic radiation intensity by multiturn telefault, produce the induction current of corresponding size, according to faradic size in the known coil of electromagnetic induction principle and tested field intensity size proportional, tested field intensity is stronger, and the induction current of generation is larger.First the induction current that inductive coil produces carries out Linear Amplifer through LM318 operational amplification circuit, and using the input of the signal after amplification as PCF8591 analog to digital conversion circuit, the simulating signal of input is constantly converted to the digital quantity of corresponding size by analog to digital conversion circuit, then digital quantity is flowed to single-chip microcomputer to process, single-chip microcomputer is then responsible for digital quantity being processed into the data can carrying out showing on LCD, and on LCD1602 liquid crystal display, demonstrate the intensity of electromagnetic field, after electromagnetic radiation intensity exceedes the Environmental security value of regulation, single-chip microcomputer sends control signal and makes hummer sounding alarm, LED is glimmered.
The utility model has the advantages that: realize the accurate measurement rapidly and efficiently of spatial electromagnetic field intensity, whole equipment volume is small and exquisite, is easy to carry, with low cost, and measuring accuracy is high, and structure is simple, stable work in work, and antijamming capability is strong, not easily breaks down; The measurement to electric field intensity and magnetic field intensity can be realized simultaneously, and carry out numerical monitor by LCD screen, solve existing pick-up unit function singleness, can only walk through test radiation intensity, the problem of precise figures display can not be carried out.Electromagnetic radiation in productive life can be measured accurately and efficiently, can effectively improve the people's livelihood, prevention radiation hazard.
Accompanying drawing explanation
Accompanying drawing 1 is structured flowchart of the present utility model;
Embodiment
With reference to the accompanying drawings the utility model is described in detail below:
As shown in Figure 1, portable multi-function electromagnetic field intensity tester, comprising structured flowchart: main control module, signal acquisition module, signal amplification module, analog-to-digital conversion module, display module, alarm module; Main control module comprises STC89C52RC single-chip microcomputer; Signal acquisition module comprises telefault; Signal amplification module comprises LM318 operational amplification circuit; Analog-to-digital conversion module comprises PCF8591 analog to digital conversion circuit; Display module comprises LCD1602 liquid crystal display; Alarm module comprises hummer, LED.Signal acquisition module and signal amplification module are electrically connected; Signal amplification module and analog-to-digital conversion module are electrically connected; Analog-to-digital conversion module and single-chip microcomputer are electrically connected; Display module and single-chip microcomputer are electrically connected; Hummer, LED and single-chip microcomputer are electrically connected.The utility model carrys out inductive spacing electromagnetic radiation intensity by multiturn telefault, produce the induction current of corresponding size, according to faradic size in the known coil of electromagnetic induction principle and tested field intensity size proportional, tested field intensity is stronger, and the induction current of generation is larger.First the induction current that inductive coil produces carries out Linear Amplifer through LM318 operational amplification circuit, and using the input of the signal after amplification as PCF8591 analog to digital conversion circuit, the simulating signal of input is constantly converted to the digital quantity of corresponding size by analog to digital conversion circuit, then digital quantity is flowed to single-chip microcomputer to process, single-chip microcomputer is then responsible for digital quantity being processed into the data can carrying out showing on LCD, and on LCD1602 liquid crystal display, demonstrate the intensity of electromagnetic field, after electromagnetic radiation intensity exceedes the Environmental security value of regulation, single-chip microcomputer sends control signal and makes hummer sounding alarm, LED is glimmered.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.Anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen in protection domain of the present utility model.
Claims (1)
1. a portable multi-function electromagnetic field intensity tester, is characterized in that comprising: main control module, signal acquisition module, signal amplification module, analog-to-digital conversion module, display module, alarm module; Main control module comprises STC89C52RC single-chip microcomputer; Signal acquisition module comprises telefault; Signal amplification module comprises LM318 operational amplification circuit; Analog-to-digital conversion module comprises PCF8591 analog to digital conversion circuit; Display module comprises LCD1602 liquid crystal display; Alarm module comprises hummer, LED; Signal acquisition module and signal amplification module are electrically connected; Signal amplification module and analog-to-digital conversion module are electrically connected; Analog-to-digital conversion module and single-chip microcomputer are electrically connected; Display module and single-chip microcomputer are electrically connected; Hummer, LED and single-chip microcomputer are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475161.6U CN204694781U (en) | 2015-06-30 | 2015-06-30 | A kind of portable multi-function electromagnetic field intensity tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475161.6U CN204694781U (en) | 2015-06-30 | 2015-06-30 | A kind of portable multi-function electromagnetic field intensity tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204694781U true CN204694781U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520475161.6U Expired - Fee Related CN204694781U (en) | 2015-06-30 | 2015-06-30 | A kind of portable multi-function electromagnetic field intensity tester |
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| CN (1) | CN204694781U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974209A (en) * | 2016-05-12 | 2016-09-28 | 中国电子科技集团公司第四十研究所 | Electromagnetic signal detection tone warning method and apparatus |
| CN106411426A (en) * | 2016-11-10 | 2017-02-15 | 成都信息工程大学 | Method and device for detecting electromagnetic wave intrusion of mobile phone battery |
| CN106443204A (en) * | 2016-08-31 | 2017-02-22 | 深圳供电局有限公司 | Hand-held power frequency electromagnetic radiation monitor |
| CN107449476A (en) * | 2017-08-15 | 2017-12-08 | 合肥移顺信息技术有限公司 | A kind of flowmeter based on thermal resistance type |
-
2015
- 2015-06-30 CN CN201520475161.6U patent/CN204694781U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974209A (en) * | 2016-05-12 | 2016-09-28 | 中国电子科技集团公司第四十研究所 | Electromagnetic signal detection tone warning method and apparatus |
| CN106443204A (en) * | 2016-08-31 | 2017-02-22 | 深圳供电局有限公司 | Hand-held power frequency electromagnetic radiation monitor |
| CN106411426A (en) * | 2016-11-10 | 2017-02-15 | 成都信息工程大学 | Method and device for detecting electromagnetic wave intrusion of mobile phone battery |
| CN107449476A (en) * | 2017-08-15 | 2017-12-08 | 合肥移顺信息技术有限公司 | A kind of flowmeter based on thermal resistance type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20160630 |
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| CF01 | Termination of patent right due to non-payment of annual fee |