GB1057425A - Improvements in and relating to radiation detectors - Google Patents
Improvements in and relating to radiation detectorsInfo
- Publication number
- GB1057425A GB1057425A GB38690/64A GB3869064A GB1057425A GB 1057425 A GB1057425 A GB 1057425A GB 38690/64 A GB38690/64 A GB 38690/64A GB 3869064 A GB3869064 A GB 3869064A GB 1057425 A GB1057425 A GB 1057425A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dipole
- tube
- sept
- oscillator
- wave
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0807—Measuring electromagnetic field characteristics characterised by the application
- G01R29/0814—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/14—Magnetic means for controlling the discharge
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Measurement Of Radiation (AREA)
Abstract
1057425 Testing micro-wave equipment MICROTHERM Ltd 22 Sept 1964 [30 Sept 1963] 38690/64 Headings G1U U5T1B U5T2A U5T2C and U5P18 Apparatus for detecting when radiation from micro-wave equipment exceeds a predetermined safety level comprises a gas discharge tube 10 provided with conductors 18, 20 forming a half-wave dipole at the radiation frequency and coupled via a transformer 28 to a transistor audio-oscillator 44. The oscillator 44 effects a preliminary ionization of the tube 10 so that when the R.F. energy is coupled into the tube via the dipole the ionization is increased and shifts into the arc glow region which is characterized by a change in colour of the glow. To increase the forward pick-up of the dipole a reflector plate 29 may be provided.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31251363A | 1963-09-30 | 1963-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1057425A true GB1057425A (en) | 1967-02-01 |
Family
ID=23211794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38690/64A Expired GB1057425A (en) | 1963-09-30 | 1964-09-22 | Improvements in and relating to radiation detectors |
Country Status (2)
Country | Link |
---|---|
US (1) | US3423679A (en) |
GB (1) | GB1057425A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2950996A1 (en) * | 1979-12-18 | 1981-06-25 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen | METHOD AND DEVICE FOR MEASURING THE INTENSITY OF ELECTROMAGNETIC RADIATION IN THE MICROWAVE AND INFRARED SPECTRAL RANGE |
DE3115301A1 (en) * | 1981-04-15 | 1982-11-04 | Georg Dipl.-Ing. Dr.-Ing. 8152 Feldkirchen-Westerham Spinner | Dielectric radiator |
GB2124392A (en) * | 1982-07-23 | 1984-02-15 | English Electric Valve Co Ltd | Apparatus for monitoring power |
EP0248501A1 (en) * | 1986-06-06 | 1987-12-09 | Koninklijke KPN N.V. | Detection system for detecting imperfections in a shielding against EM radiation |
GB2277806A (en) * | 1993-05-05 | 1994-11-09 | Andrew Thomas Fox | Improvements in and relating to apparatus for detecting the prescence of microwaves |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3919638A (en) * | 1973-08-10 | 1975-11-11 | Gen Electric | Microwave detection instrument |
FR2371691A1 (en) * | 1976-11-19 | 1978-06-16 | Anvar | DEVICE FOR DETECTIONING OR MEASURING ELECTROMAGNETIC RADIATION AND PROCESS FOR IMPLEMENTATION |
US4301406A (en) * | 1979-04-23 | 1981-11-17 | Walter Shriner | Microwave warning device |
US5430604A (en) * | 1993-09-17 | 1995-07-04 | Wong; Sam Q. | Hand-held electrostatic discharge generator |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2123242A (en) * | 1935-12-20 | 1938-07-12 | Telefunken Gmbh | Ultrashort wave receiver |
US2395850A (en) * | 1943-09-18 | 1946-03-05 | Government Of The United Sates | Means for indicating the presence of radio frequency fields |
US2479964A (en) * | 1947-09-11 | 1949-08-23 | Gen Electric | Glow-discharge lamp tuning indicator |
US2788490A (en) * | 1952-11-26 | 1957-04-09 | Philips Corp | Output power measurement of a pulsed magnetron oscillator |
NL191136A (en) * | 1953-10-01 |
-
1963
- 1963-09-30 US US312513A patent/US3423679A/en not_active Expired - Lifetime
-
1964
- 1964-09-22 GB GB38690/64A patent/GB1057425A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2950996A1 (en) * | 1979-12-18 | 1981-06-25 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen | METHOD AND DEVICE FOR MEASURING THE INTENSITY OF ELECTROMAGNETIC RADIATION IN THE MICROWAVE AND INFRARED SPECTRAL RANGE |
DE3115301A1 (en) * | 1981-04-15 | 1982-11-04 | Georg Dipl.-Ing. Dr.-Ing. 8152 Feldkirchen-Westerham Spinner | Dielectric radiator |
GB2124392A (en) * | 1982-07-23 | 1984-02-15 | English Electric Valve Co Ltd | Apparatus for monitoring power |
EP0248501A1 (en) * | 1986-06-06 | 1987-12-09 | Koninklijke KPN N.V. | Detection system for detecting imperfections in a shielding against EM radiation |
GB2277806A (en) * | 1993-05-05 | 1994-11-09 | Andrew Thomas Fox | Improvements in and relating to apparatus for detecting the prescence of microwaves |
GB2277806B (en) * | 1993-05-05 | 1996-10-09 | Andrew Thomas Fox | Improvements in and relating to apparatus for monitoring microwaves within microwave ovens |
Also Published As
Publication number | Publication date |
---|---|
US3423679A (en) | 1969-01-21 |
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