GB1001818A - A light measuring apparatus - Google Patents
A light measuring apparatusInfo
- Publication number
- GB1001818A GB1001818A GB1983262A GB1983262A GB1001818A GB 1001818 A GB1001818 A GB 1001818A GB 1983262 A GB1983262 A GB 1983262A GB 1983262 A GB1983262 A GB 1983262A GB 1001818 A GB1001818 A GB 1001818A
- Authority
- GB
- United Kingdom
- Prior art keywords
- meter
- radiation
- mercury
- cell
- electrolytic
- 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
- 230000005855 radiation Effects 0.000 abstract 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 4
- 229910052753 mercury Inorganic materials 0.000 abstract 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/48—Photometry, e.g. photographic exposure meter using chemical effects
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
1,001,818. Measuring radiation; electrolytic, meters. QUARZLAMPEN G.m.b.H. May 23, 1962 [June 3, 1961], No. 19832/62. Headings G1A and G1Q. A radiation measuring apparatus comprises a photo-electric cell which receives the radiation to be measured and which is electrically connected through a variable resistor to an electrolytic meter at which a measurement proportional to the integral of the incident radiation with respect to time can be read off. In the embodiment shown radiation, such as light, from a source 10 passes through a filter 14 and is received by a silicon photo-emissive cell 16 which is connected through a variable resistor 18 to an electrolytic meter 24 of the mercury type which gives an indication of the total amount of radiation received by the cell during a given time, the scale 38 of the meter 24 being calibrated in either watt-seconds per unit of area or lux hours the range being determined by the setting of the resistor 18. The electrolytic meter 24 has a bulb 26 in which a semipermeable frit plate 28 is arranged at an angle to the horizontal with one of the electrodes 20 of the meter above it and one 22 below it and immersed in the electrolyte 36. An amount of mercury 32 is contained above the frit plate 28 and in electrical contact with the electrode 20. As a result of current produced by the photo-electric cell 16 mercury passes through the frit plate into the vertical measuring tube 34. The meter may be re-set to zero by inverting it and allowing mercury which has collected in the tube 34 to flow back to above the frit plate through an aperture 30. Additional photoelectric cells may be connected in series with the cell 16 to increase the voltage output thereof.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEQ0000660 | 1961-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1001818A true GB1001818A (en) | 1965-08-18 |
Family
ID=7394487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1983262A Expired GB1001818A (en) | 1961-06-03 | 1962-05-23 | A light measuring apparatus |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE617771A (en) |
| CH (1) | CH405512A (en) |
| GB (1) | GB1001818A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348664A (en) | 1978-10-30 | 1982-09-07 | Elder Pharmaceuticals, Inc. | Device for measuring ultraviolet light exposure |
-
1962
- 1962-04-12 CH CH451462A patent/CH405512A/en unknown
- 1962-05-17 BE BE617771A patent/BE617771A/en unknown
- 1962-05-23 GB GB1983262A patent/GB1001818A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348664A (en) | 1978-10-30 | 1982-09-07 | Elder Pharmaceuticals, Inc. | Device for measuring ultraviolet light exposure |
Also Published As
| Publication number | Publication date |
|---|---|
| CH405512A (en) | 1966-01-15 |
| BE617771A (en) | 1962-09-17 |
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