CN201242569Y - Radiation protection detector - Google Patents
Radiation protection detector Download PDFInfo
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- CN201242569Y CN201242569Y CNU200820040183XU CN200820040183U CN201242569Y CN 201242569 Y CN201242569 Y CN 201242569Y CN U200820040183X U CNU200820040183X U CN U200820040183XU CN 200820040183 U CN200820040183 U CN 200820040183U CN 201242569 Y CN201242569 Y CN 201242569Y
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Abstract
The utility model provides a radiation-proof detector which comprises a single axis magnetic induction sensor, a signal detecting circuit, a single chip circuit, a sound-light alarm, an LCD display circuit, a keystroke circuit and a voltage stabilizing circuit. The radiation-proof detector is characterized in that the signal output terminal of the single axis sensor is connected with the signal input terminal of the signal detecting circuit, the level output terminal of the signal detecting circuit is connected with the A/D input terminal of the single chip circuit, the drive signals of the sound-light alarm circuit and the LCD display circuit come from the corresponding signal output terminals of the single chip, the output terminal of the keystroke circuit is connected with the command input terminal of the single chip, and a stabilized power source supplies the required working voltage for all the circuits. The utility model provides quantitative analysis data for eradication of the environmental electromagnetic pollution so as to protect the environment. The device is convenient to carry and easy to operate and is an ideal electromagnetic radiation detection instrument.
Description
Technical field
The utility model belongs to the environment measuring technical field, is specifically related to a kind of radiation proof detector.
Background technology
Low frequency electromagnetic field is to be produced by the electric current by electric wire or electrical equipment, and magnetic field intensity increases along with the increase of strength of current, and the unit of magnetic field intensity is Gauss (Gs) or tesla (T).
Power transmission line, electric wire and electric equipment all can produce the alternation low frequency electromagnetic field.Also have a lot of other electrical equipment also can produce the alternation low frequency electromagnetic field in daily life, as televisor, micro-wave oven, hair dryer, refrigerator, computing machine etc.
If the human body long period is accepted the electromagnetic field radiation of certain intensity, may impact health.Its mechanism of action mainly contains thermal effect, non-thermal effect and cumulative effect etc., and performance is with the central nervous system neuro functional disturbance of unifying.Show as neurasthenic syndrome clinically, dizziness, weak, sleep-disorder, failure of memory are often arranged.The vegetative nerve functional disturbance key reaction is at cardiovascular system, shows as bradycardia, blood pressure is on the low side.A few peoples to accept the hard intensity worker, can have tachycardia and fluctuation of blood pressure or rising especially.In addition, the woman worker often has the confusion of the menstrual cycle, and indivedual male workers have sexual hypofunction.
Therefore, the research that environment electromagnetics pollutes more and more is subjected to people's attention with control, but the measurement means at the environment low frequency electromagnetic field also is short of very much at present, the production of surveying instrument, domestic still is blank at present, the professional instrument that only limits to the production of external major company can detect, and these equipment are generally relatively more expensive, volume is bigger simultaneously, and function is numerous and diverse, can not civilian commercialization.
Summary of the invention
The purpose of this utility model is to develop a kind of portable, and the easy-operating environment electromagnetics that is used for pollutes the radiation proof detector of testing.
Technical solution of the present utility model is as follows:
Said radiation proof detector comprises: uniaxial magnetic induction pick-up 1, single machine unit 6.Acousto-optic warning unit 7.Display unit 8, push-button unit 9, battery 10, DC/DC voltage regulation unit 11, negative pressure unit 12, and by one stage signal amplifier 2, zeroing unit 3, active half-wave rectifier 4, the signal deteching circuit that secondary level amplifier 5 constitutes;
The output terminal of uniaxial magnetic induction pick-up 1 is connected with the signal input part of one stage signal amplifier 2; The output of one stage signal amplifier 2 inputs to active half-wave rectifier 4 after zeroing unit 3 zeroings, the output terminal of active half-wave rectifier 4 is connected with the input end of secondary level amplifier 5, and the A/D input end of the level output end of secondary level amplifier 5 and single machine unit 6 is connected;
The drive signal of display unit 8 and acousto-optic warning unit 7 is respectively from single machine unit 6 corresponding output terminals;
The instruction input end of the instruction output end of push-button unit 9 and single machine unit 6 is connected;
The under-voltage signal of DC/DC voltage regulation unit 11 exports single machine unit 6 corresponding input ends to;
The output terminal of battery 10 is connected with the voltage input end of DC/DC voltage stabilizer 11, and the voltage output end of DC/DC voltage stabilizer 11 is connected with the voltage input end of negative-voltage generator 12;
DC/DC voltage stabilizer 11 and negative-voltage generator 12 be respectively signal deteching circuit provide+5v and-the 5v direct supply, the DC/DC voltage stabilizer provides working power for other circuit unit simultaneously;
The uniaxial magnetic induction pick-up is a coil type.Single machine unit 6 adopts the single-chip microcomputer series of built-in A/D converter and storer; The DC/DC voltage stabilizer adopts direct current---DC converting module; Vacuum generator 12 adopts the polarity of voltage conversion chip.
Good effect of the present utility model is: be effectively monitoring of environmental electromagnetic pollution, the data of quantitative test are provided, become research and prevent and treat a kind of detection means that environment electromagnetics pollutes.This instrument is easy to carry, easy and simple to handle, can be widely used in the measurement of the electromagnetic field radiation intensity of various purposes, for example: the safety electromagnetic field radiant quantity measurement of personal work, living environment, the electromagnetic-wave leakage of various electrical equipments is measured, the research electromagnetic field radiation measurement of industry, hygienist and personal safety fitness guru etc.Special as pregnant woman, child, patient etc. need the crowd of key protection, and healthy influenced by electromagnetic field radiation more obvious, if this instrument of use then can in time find the electromagnetic field pollution source, thereby rationally dodge, reach the protection purpose.
Description of drawings
Fig. 1 is the utility model schematic block circuit diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
As shown in Figure 1, the output terminal of uniaxial magnetic induction pick-up 1 is connected with the signal input part of one stage signal amplifier 2; The output of one stage signal amplifier 2 inputs to active half-wave rectifier 4 after zeroing unit 3 zeroings, the output terminal of active half-wave rectifier 4 is connected with the input end of secondary level amplifier 5, and the A/D input end of the level output end of secondary level amplifier 5 and single machine unit 6 is connected;
The drive signal of display unit 8 and acousto-optic warning unit 7 is respectively from single machine unit 6 corresponding output terminals;
The instruction input end of the instruction output end of push-button unit 9 and single machine unit 6 is connected;
The under-voltage signal of DC/DC voltage regulation unit 11 exports single machine unit 6 corresponding input ends to;
The output terminal of battery 10 is connected with the voltage input end of DC/DC voltage stabilizer 11, and the voltage output end of DC/DC voltage stabilizer 11 is connected with the voltage input end of negative-voltage generator 12;
DC/DC voltage stabilizer 11 and negative-voltage generator 12 be respectively signal deteching circuit provide+5v and-the 5v direct supply, the DC/DC voltage stabilizer provides working power for other circuit unit simultaneously;
The uniaxial magnetic induction pick-up is a coil type.
Single machine unit 6 adopts the single-chip microcomputer series of built-in A/D converter and storer; The DC/DC voltage stabilizer adopts direct current---DC converting module; Vacuum generator 12 adopts the polarity of voltage conversion chip.
Signal detection module is amplified by one stage signal, zero point level adjustment, active half-wave rectification, secondary level amplifying circuit constitutes, its core parts are high precision operating amplifiers, have extremely low input offset voltage drift (the 0.1 μ V/ month) and noise (32nV/ √ Hz), guaranteed precision and degree of stability that μ V level magnetic induction input signal amplifies.
Battery manager is adopted in the DC/DC voltage stabilizing, is a kind of high-level efficiency (90%), and the DC/DC converter of low input (〉=0.87V) has extremely low quiescent current (37 μ A), is fit to list or double-battery electric power system.
Vacuum generator adopts the polarity of voltage conversion chip of high-level efficiency (99.9%), and peripheral circuit only needs two electric capacity, is a kind of high performance-price ratio design of bipolarity feed circuit.
The principle of work of radiation proof detector: the low frequency electromagnetic field that radiation source produces is picked up by the uniaxial magnetic induction pick-up, produces the weak signal of about 3 μ V/mGs.Weak signal is amplified through the one stage signal of signal detection module, zero point level adjustment, active half-wave rectification and secondary level processing and amplifying generate and become the d. c. voltage signal that necessarily concerns with the low frequency electromagnetic field strength.MCU adopts certain algorithm, and the d. c. voltage signal that signal detection module is imported is converted to and the linear numeral of low frequency electromagnetic field strength, send with LCD to show.DC/DC voltage stabilizer and vacuum generator provide wide input (1.5V for signal detection module
-6.5V) stable power, overcome the zero point drift of signal detection module.
The complete machine performance index have reached the level of professional instrument:
Measurement range 0.0 milligauss
-199.9 milligauss,
Resolution 0.1 milligauss,
Frequency range 30Hz is to 300Hz,
Accuracy ± 2% is at 50Hz/60HZ.
Claims (5)
1, radiation proof detector is characterized in that: described radiation proof detector comprises: uniaxial magnetic induction pick-up (1), single machine unit (6), acousto-optic warning unit (7), display unit (8), push-button unit (9), battery (10), DC/DC voltage regulation unit (11), negative pressure unit (12) and the signal deteching circuit that is made of one stage signal amplifier (2), zeroing unit (3), active half-wave rectifier (4) and secondary level amplifier (5);
The output terminal of uniaxial magnetic induction pick-up (1) is connected with the signal input part of one stage signal amplifier (2); The output of one stage signal amplifier (2) inputs to active half-wave rectifier (4) after zeroing unit (3) zeroing, the output terminal of active half-wave rectifier (4) is connected with the input end of secondary level amplifier (5), and the level output end of secondary level amplifier (5) is connected with the A/D input end of single machine unit (6);
The drive signal of display unit (8) and acousto-optic warning unit (7) is respectively from the corresponding output terminal of single machine unit (6);
The instruction output end of push-button unit (9) is connected with the instruction input end of single machine unit (6);
The under-voltage signal of DC/DC voltage regulation unit (11) exports the corresponding input end of single machine unit (6) to;
The output terminal of battery (10) is connected with the voltage input end of DC/DC voltage stabilizer (11), and the voltage output end of DC/DC voltage stabilizer (11) is connected with the voltage input end of negative-voltage generator (12);
DC/DC voltage stabilizer (11) and negative-voltage generator (12) be respectively signal deteching circuit provide+5v and-the 5v direct supply, the DC/DC voltage stabilizer provides working power for other circuit unit simultaneously.
2, radiation proof detector according to claim 1 is characterized in that: the uniaxial magnetic induction pick-up is a coil type.
3, radiation proof detector according to claim 1 is characterized in that: single machine unit (6) adopts the single-chip microcomputer series of built-in A/D converter and storer.
4, radiation proof detector according to claim 1 is characterized in that: the DC/DC voltage stabilizer adopts direct current---DC converting module.
5, radiation proof detector according to claim 1 is characterized in that: vacuum generator (12) adopts the polarity of voltage conversion chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820040183XU CN201242569Y (en) | 2008-06-27 | 2008-06-27 | Radiation protection detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820040183XU CN201242569Y (en) | 2008-06-27 | 2008-06-27 | Radiation protection detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201242569Y true CN201242569Y (en) | 2009-05-20 |
Family
ID=40715860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820040183XU Expired - Fee Related CN201242569Y (en) | 2008-06-27 | 2008-06-27 | Radiation protection detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201242569Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102495381A (en) * | 2011-12-18 | 2012-06-13 | 河海大学常州校区 | Induction type electromagnetic leakage detection device and method |
| CN102539938A (en) * | 2011-10-21 | 2012-07-04 | 中华人民共和国常州出入境检验检疫局 | Electromagnetic leakage detecting system |
| CN102657391A (en) * | 2012-05-18 | 2012-09-12 | 浙江理工大学 | Maternity dress with radiation protection and intelligent alarming functions |
| CN103033691A (en) * | 2012-12-18 | 2013-04-10 | 中国人民解放军第三军医大学 | Individual electromagnetic radiation exposure monitoring and alarming device |
-
2008
- 2008-06-27 CN CNU200820040183XU patent/CN201242569Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539938A (en) * | 2011-10-21 | 2012-07-04 | 中华人民共和国常州出入境检验检疫局 | Electromagnetic leakage detecting system |
| CN102495381A (en) * | 2011-12-18 | 2012-06-13 | 河海大学常州校区 | Induction type electromagnetic leakage detection device and method |
| CN102657391A (en) * | 2012-05-18 | 2012-09-12 | 浙江理工大学 | Maternity dress with radiation protection and intelligent alarming functions |
| CN103033691A (en) * | 2012-12-18 | 2013-04-10 | 中国人民解放军第三军医大学 | Individual electromagnetic radiation exposure monitoring and alarming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEFEI JINNAOREN PHOTOELECTRIC INSTRUMENT CO., LTD. Free format text: FORMER NAME: HEFEI JINNAOREN MEDICAL ELECTRONIC CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 230088 Anhui city of Hefei province high tech Zone Tianda road Huayi Science Park building three layer E Patentee after: HEFEI GOLDEN BRAINS OPTICAL INSTRUMENT CO., LTD. Address before: 230088 No. 71, Tianda Road, hi tech Development Zone, Anhui, Hefei Patentee before: Hefei Jinnaoren Medical Electronic Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20130627 |