GB957201A - Device for the chemical analysis of materials by means of photocells according to thespectral method - Google Patents
Device for the chemical analysis of materials by means of photocells according to thespectral methodInfo
- Publication number
- GB957201A GB957201A GB30706/60A GB3070660A GB957201A GB 957201 A GB957201 A GB 957201A GB 30706/60 A GB30706/60 A GB 30706/60A GB 3070660 A GB3070660 A GB 3070660A GB 957201 A GB957201 A GB 957201A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- contacts
- chemical analysis
- thyratron
- sept
- 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
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 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
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/30—Measuring the intensity of spectral lines directly on the spectrum itself
- G01J3/36—Investigating two or more bands of a spectrum by separate detectors
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
957,201. Photo-electric spectrometers. REGIE NATIONALE DES USINES RENAULT. Sept. 6, 1960 [Sept.12, 1959], No.30706/60. Addition to 912,882. Heading G1A. This invention relates to a modification of the detector arrangements used in the apparatus for spectro-chemical analysis described in the parent Specification. These detectors operate to actuate a relay when the integrated output of an associated photo-cell reaches a pre-determined level. In the present detector arrangement the output of the integrating means is fed to input 60 and a reference current of the required value to input 61. The difference between these signals is amplified and fed through limiter 149 to sensitive relay 150. This relay controls the bias applied to thyratron 151 which controls relay 57. When the inputs are different the contacts of the relay 57 are in their normally closed condition but when the integrated output reaches the reference level the contacts of relay 150 close to cause the thyratron to open the contacts of relay 57.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR804995A FR76558E (en) | 1959-09-12 | 1959-09-12 | Device for spectral chemical analysis of materials using photoelectric cells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB957201A true GB957201A (en) | 1964-05-06 |
Family
ID=8719106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30706/60A Expired GB957201A (en) | 1959-09-12 | 1960-09-06 | Device for the chemical analysis of materials by means of photocells according to thespectral method |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE594732R (en) |
| FR (1) | FR76558E (en) |
| GB (1) | GB957201A (en) |
| LU (1) | LU39153A1 (en) |
| SE (1) | SE304388B (en) |
-
1959
- 1959-09-12 FR FR804995A patent/FR76558E/en not_active Expired
-
1960
- 1960-09-05 BE BE594732A patent/BE594732R/en active
- 1960-09-06 GB GB30706/60A patent/GB957201A/en not_active Expired
- 1960-09-09 LU LU39153D patent/LU39153A1/xx unknown
- 1960-09-09 SE SE8632/60A patent/SE304388B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR76558E (en) | 1961-11-10 |
| LU39153A1 (en) | 1960-11-09 |
| SE304388B (en) | 1968-09-23 |
| BE594732R (en) | 1961-01-02 |
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