CN202093178U - Household portable radioactivity detector - Google Patents
Household portable radioactivity detector Download PDFInfo
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- CN202093178U CN202093178U CN2011200778556U CN201120077855U CN202093178U CN 202093178 U CN202093178 U CN 202093178U CN 2011200778556 U CN2011200778556 U CN 2011200778556U CN 201120077855 U CN201120077855 U CN 201120077855U CN 202093178 U CN202093178 U CN 202093178U
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Abstract
The utility model relates to a household portable radioactivity detector which can be used in the radioactivity detection at home and in an environment, and has the advantages of low prices, simplicity in operation, convenience in carrying, stability in work, high sensitivity and the like. The radioactivity detector comprises a Geiger-Muller counter 1, a signal amplifying module 2, a data acquisition and processing module 3, a boost module 4, a power supply 5, and a display and alarm module 6; and in addition, a relative measuring method is adopted to measure the ratio of the radioactivity level of a substance to be measured to that of an environmental background, and judge if to output a sound-light alarm signal according to if the ratio exceeds an alarm threshold.
Description
Technical field
The utility model relates to the portable radiological measuring device of a kind of domestic type, can be used for the radiological measuring of home environment, belongs to the technical field of radiological measuring and healthy protect.
Background technology
Along with house decoration select for use natural material to increase gradually and the collection of natural gemstone more and more popular, more and more contain active natural mineral matter and get their way into people's lives, a lot of people are in for a long time under such radio exposure and can't discover again, and its health just might come to harm.
At present, radioactive instrumentation is mainly used in the stronger industries of radioactivity such as nuclear power station, irradiation enterprise, uranium mining, and these environment are very high to the radiation-resistant property requirement of instrument, and the device of selecting for use also costs an arm and a leg, operate also relative complex, and need the professional person to instruct.Therefore, need a kind of cheap, easy and simple to handle and portable radiac, whether have unhealthful radiomaterial around the reminds people, avoid people too much be subjected to the irradiation that these materials bring, protection health of people.
Summary of the invention
The radioactivity of public's test material in the time of house decoration, jewel collection etc. for convenience, and whether the existing living environment of detection exists radioactivity, overcome that existing radiac cost is higher, complicated operation and the problem that is not easy to carry, the utility model provides a kind of simple and practical radiological measuring device, this device can detect the radioactivity of material and the ratio of natural background, thereby reflects the radioactive level height of this material; And cheap, simple to operate, be easy to carry.Though do not possess the precision of instrumentation, be enough to point out the possible unhealthful radiomaterial that exists on every side, in time to take measures.
Radiological measuring device of the present utility model comprises: boost module is used for that work provides high pressure to the GM counter tube; The GM counter tube is used to produce the pulse signal that frequency is proportional to radioactive intensity; The signal amplification module is used to amplify the pulse signal that is produced by described GM counter tube; Data acquisition and processing module are used to gather amplified pulse signal and are converted to count frequency, carry out data processing, obtain the radioactive level of material to be measured and the ratio of environmental exact details radioactive level; Show and alarm module, be used to show described ratio, and determine whether to produce sound and light alarm according to ratio; Power supply is used to described radiological measuring device that power supply is provided.Wherein, described radiological measuring device adopts the relative measurement method, to environmental exact details radioactive level count measurement, treat measurement of species radioactive level count measurement more earlier, finally obtain the radioactive level of above-mentioned material to be measured and the ratio of environmental exact details radioactive level.
Further, show and the radioactive level of alarm module material more to be measured and ratio and predefined alarm threshold value of environmental exact details radioactive level in this radiological measuring device, if above-mentioned ratio surpasses pre-set threshold, then produce sound and light alarm.
Further, data acquisition and processing module adopt the STM8L singlechip chip in this radiological measuring device.
Beneficial effect: the radiological measuring device of the utility model design have cheap, simple to operate, be easy to carry, characteristics such as working stability, sensitivity height; Adopt the method for relative measurement, can detect the radioactive level height of materials such as the ceramic tile that contains radiomaterial, marble.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is the radiological measuring structure drawing of device of the utility model design.
Fig. 2 is the circuit theory diagrams of the utility model embodiment.
GM counter tube 1, signal amplification module 2, data acquisition and processing module 3, boost module 4, power supply 5, demonstration and alarm module 6 are wherein arranged.
Embodiment
In Fig. 1, boost module 4, signal amplification module 2, GM counter tube 1, data acquisition and processing module 3, demonstration and alarm module 6 are connected in series; Power supply 5 is the 3V dry cell, needed power supply is provided for respectively boost module 4, signal amplification module 2, data acquisition and processing module 3, demonstration and alarm module 6; Boost module 1 produces vibration by triode 8050, direct supply is converted to AC power, and voltage is increased to 400V from exchanging 3V by transformer, by being converted to the direct supply that voltage is 400V after diode and electric capacity rectification and the filtering, this is the operating voltage of GM counter tube 1 again; After GM counter tube 1 is started working, be subjected to β and gamma-rays is particle excitated, can produce pulse signal; Signal amplification module 2 is to amplify and export data acquisition and display module 3 to by the pulse signal that triode 8050 produces the GM counter tube; Data acquisition and display module 3 are the single-chip microcomputers that adopt the tape pulse counting channel, here in order to reduce power consumption, prolong the power supply power-on time, selected the STM8L singlechip chip of super low-power consumption for use, this chip operating voltage is 1.65V to 3.6V, also can continue to keep the single-chip microcomputer operate as normal under the situation that voltage after 3V power work a period of time reduces; Single-chip microcomputer is gathered amplified pulse signal and is converted to count frequency, carry out data processing, obtain the radioactive level of material to be measured and the ratio of environmental exact details radioactive level, delivering to LED display then shows, and the alarm threshold value that will be worth with set compares, can output sound and LED flashing light alarm signal as surpassing alarm threshold value.
Device has adopted the relative measurement method, and promptly earlier to environmental exact details radioactive level count measurement, the test substance radiocounting is measured again, finally obtains the radioactive level of above-mentioned material to be measured and the ratio of environmental exact details radioactive level.
During circuit working, in order to guarantee the accuracy of measurement data, the Single Chip Microcomputer (SCM) program of at every turn starting shooting can at first be carried out environmental exact details radiocounting in 1 minute and measured, at this moment not with test substance near detector, in order to avoid influence the sample-out count result; Instrument can be pressed close to test substance after sample-out count finishes measures, if the ratio of material radioactive level that measures and environmental exact details radioactive level surpasses the alarm threshold value of setting, LED alarm lamp and hummer together with the time report to the police, send tangible caution.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. portable radiological measuring device comprises:
Boost module is used for that work provides high pressure to the GM counter tube;
The GM counter tube is used to produce the pulse signal that frequency is proportional to radioactive intensity;
The signal amplification module is used to amplify the pulse signal that is produced by described GM counter tube;
Data acquisition and processing module are used to gather amplified pulse signal and are converted to count frequency, carry out data processing, obtain the radioactive level of material to be measured and the ratio of environmental exact details radioactive level;
Show and alarm module, be used to show described ratio, and determine whether to produce sound and light alarm according to ratio;
Power supply is used to described radiological measuring device that power supply is provided.
2. radiological measuring device according to claim 1, wherein data acquisition and processing module adopt the STM8L singlechip chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200778556U CN202093178U (en) | 2011-03-23 | 2011-03-23 | Household portable radioactivity detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200778556U CN202093178U (en) | 2011-03-23 | 2011-03-23 | Household portable radioactivity detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202093178U true CN202093178U (en) | 2011-12-28 |
Family
ID=45368238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200778556U Expired - Fee Related CN202093178U (en) | 2011-03-23 | 2011-03-23 | Household portable radioactivity detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202093178U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628952A (en) * | 2012-04-13 | 2012-08-08 | 大连新程软件有限公司 | Radioactive ray tester |
| CN102798881A (en) * | 2012-08-21 | 2012-11-28 | 宁波智明芯电子科技有限公司 | Nuclear radiation detection system |
| CN109738932A (en) * | 2018-12-21 | 2019-05-10 | 奥克斯空调股份有限公司 | A kind of domestic electrical equipment remote controller and its control method with radiological measuring function |
-
2011
- 2011-03-23 CN CN2011200778556U patent/CN202093178U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628952A (en) * | 2012-04-13 | 2012-08-08 | 大连新程软件有限公司 | Radioactive ray tester |
| CN102798881A (en) * | 2012-08-21 | 2012-11-28 | 宁波智明芯电子科技有限公司 | Nuclear radiation detection system |
| CN102798881B (en) * | 2012-08-21 | 2016-03-30 | 宁波智明芯电子科技有限公司 | nuclear radiation detection system |
| CN109738932A (en) * | 2018-12-21 | 2019-05-10 | 奥克斯空调股份有限公司 | A kind of domestic electrical equipment remote controller and its control method with radiological measuring function |
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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: 20111228 Termination date: 20120323 |