JPS578469A - Method and device for discrimination of radiation exposure - Google Patents
Method and device for discrimination of radiation exposureInfo
- Publication number
- JPS578469A JPS578469A JP8259280A JP8259280A JPS578469A JP S578469 A JPS578469 A JP S578469A JP 8259280 A JP8259280 A JP 8259280A JP 8259280 A JP8259280 A JP 8259280A JP S578469 A JPS578469 A JP S578469A
- Authority
- JP
- Japan
- Prior art keywords
- displacement
- conductivity
- radiations
- amplified
- examined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Radiation (AREA)
Abstract
PURPOSE:To discriminate whether an object to be inspected is exposed to radiations or not by applying the voltage consisting of obtaining square waves or sine waves from a variable frequency oscillator and amplifying the same to the object to be inspected via a conductive needle electrode and detecting the displacement of electric conductivity. CONSTITUTION:The square or sine waves of 0.1-200kHz frequencies obtained by an oscillating circuit 3 are amplified by an amplifier 4, and are applied to an object 1 to be examined, for example, a potato, onion or the like by way of the conductive needle electrode of a sensor part 2. The waveform and frequency are selected depending upon the kinds of the objects to be examined. The signal obtained by the sensor 2 is amplified by amplifiers 4, 5, and are inputted to a display circuit 6, which detects the displacement of conductivity. First, the electrode of the sensor part 2 is allowed to contact both of the object unexposed to radiations and the perfectly exposed object, and the displacement components of conductivity are beforehand measured with the circuit 6. Thereby, the object of unknown exposure conditions is discriminated, and the presence or not of germinatability is easily decided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8259280A JPS578469A (en) | 1980-06-18 | 1980-06-18 | Method and device for discrimination of radiation exposure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8259280A JPS578469A (en) | 1980-06-18 | 1980-06-18 | Method and device for discrimination of radiation exposure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS578469A true JPS578469A (en) | 1982-01-16 |
| JPH033194B2 JPH033194B2 (en) | 1991-01-17 |
Family
ID=13778750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8259280A Granted JPS578469A (en) | 1980-06-18 | 1980-06-18 | Method and device for discrimination of radiation exposure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS578469A (en) |
-
1980
- 1980-06-18 JP JP8259280A patent/JPS578469A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH033194B2 (en) | 1991-01-17 |
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