JPS5735738A - Radiation thermometer - Google Patents
Radiation thermometerInfo
- Publication number
- JPS5735738A JPS5735738A JP11221680A JP11221680A JPS5735738A JP S5735738 A JPS5735738 A JP S5735738A JP 11221680 A JP11221680 A JP 11221680A JP 11221680 A JP11221680 A JP 11221680A JP S5735738 A JPS5735738 A JP S5735738A
- Authority
- JP
- Japan
- Prior art keywords
- turned
- switch
- voltage
- capacitor
- discharge
- 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
- 230000005855 radiation Effects 0.000 title abstract 3
- 239000003990 capacitor Substances 0.000 abstract 3
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
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation Pyrometers (AREA)
Abstract
PURPOSE:To control a temperature, by forming a circuit in which such as charging voltage of a capacitor of a time constant circuit repeats charge and discharge between the voltage obtained from radiation energy, which is lower than said voltage, and measuring the period of charge and discharge. CONSTITUTION:Radiation energy of an object to be measured 1 is condensed by a lens 2, is converted to an electric signal by a detector 3, is amplified by alpha times by an amplifier 4, obtains EC, and is inputted to one terminal of a comparator 5. A switch S1 is turned off, a switch S2 is turned on, voltage E0 which has charged a capacitor C in advance is discharged through a resistance R, and when it becomes lower than EC, a pulse generator 7 generates a pulse through the comparator 5. Only during the period of said pulse width, the switch S1 is turned on, the switch S2 is turned off, the capacitor C is charged up to E0, and charge and discharge are repeated. For instance, if said period is made fc, T=kRCfc (k is a constant, R and C are values of the time constant circuit, and T is a temperature of the object to be measured 1). In this way, a temperature is measured easily and with high accuracy by measuring the fc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55112216A JPS6058407B2 (en) | 1980-08-14 | 1980-08-14 | radiation thermometer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55112216A JPS6058407B2 (en) | 1980-08-14 | 1980-08-14 | radiation thermometer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5735738A true JPS5735738A (en) | 1982-02-26 |
JPS6058407B2 JPS6058407B2 (en) | 1985-12-19 |
Family
ID=14581156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55112216A Expired JPS6058407B2 (en) | 1980-08-14 | 1980-08-14 | radiation thermometer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6058407B2 (en) |
-
1980
- 1980-08-14 JP JP55112216A patent/JPS6058407B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6058407B2 (en) | 1985-12-19 |
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