JPS56138226A - Gain automatic control system photometer - Google Patents
Gain automatic control system photometerInfo
- Publication number
- JPS56138226A JPS56138226A JP4252980A JP4252980A JPS56138226A JP S56138226 A JPS56138226 A JP S56138226A JP 4252980 A JP4252980 A JP 4252980A JP 4252980 A JP4252980 A JP 4252980A JP S56138226 A JPS56138226 A JP S56138226A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- constant
- light beam
- photometer
- sample
- 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
- 239000003990 capacitor Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000004907 flux Effects 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 2
- 230000003321 amplification Effects 0.000 abstract 1
- 238000003199 nucleic acid amplification method 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
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
PURPOSE:To make it possible to perform a measurement, irrespective of a ratio of both signals, by making K1 and K2 optional constant as to an electric conversion signal Vs of a sample light beam and an electric conversion signal Vr of a control light beam, and controlling so that K1.Vs+K2.Vr is constant. CONSTITUTION:A light beam from the light source L is split into two luminous fluxes through the photometer M and the rotary mirror Bs1. Both the luminous fluxes are made incident to the photodetector D alternately through the rotary mirror Bs2, and are electrically charged in the capacitors C1, C2 of the holding circuits H1, H2 through the preamplifier A and the switches S1, S2 to store them. Those which have been stored in the capacitors C1, C2 are a control signal Vr and a sample signal Vs, respectively. Both the signals are inputted to the dividing circuit Dv through the buffer amplifiers A1, A2, respectively. Also, the output of K1.Vs+K2. Vr is obtained at the connecting point of resistances R1, R2 at the output sides of A1 and A2 (K1 and K2 are optional coefficients). It is compared with the constant voltage (e) by the comparator Cv, and is controlled so as to become a constant value (e). According to such a constitution, measurement can be performed without saturation of amplification, irrespective of a ratio of a sample signal to a control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4252980A JPS56138226A (en) | 1980-03-31 | 1980-03-31 | Gain automatic control system photometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4252980A JPS56138226A (en) | 1980-03-31 | 1980-03-31 | Gain automatic control system photometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56138226A true JPS56138226A (en) | 1981-10-28 |
| JPS6315535B2 JPS6315535B2 (en) | 1988-04-05 |
Family
ID=12638598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4252980A Granted JPS56138226A (en) | 1980-03-31 | 1980-03-31 | Gain automatic control system photometer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56138226A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63172942U (en) * | 1987-05-01 | 1988-11-10 | ||
| FR2632401A1 (en) * | 1988-06-01 | 1989-12-08 | Bussotti Jean Franck | Energy control device for multi-beam photometric measurement apparatuses, and apparatuses equipped with such a device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6664798B1 (en) | 2019-07-23 | 2020-03-13 | 株式会社村山電機製作所 | Automatic switching method of temperature display screen and thermometer using the method |
-
1980
- 1980-03-31 JP JP4252980A patent/JPS56138226A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63172942U (en) * | 1987-05-01 | 1988-11-10 | ||
| FR2632401A1 (en) * | 1988-06-01 | 1989-12-08 | Bussotti Jean Franck | Energy control device for multi-beam photometric measurement apparatuses, and apparatuses equipped with such a device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6315535B2 (en) | 1988-04-05 |
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