scholarly journals Infrared Radiation Thermometer for Laser Flash Thermal Diffusivity Measurements.

Netsu Bussei ◽  
1994 ◽  
Vol 8 (3) ◽  
pp. 143-148 ◽  
Author(s):  
Masanobu KOBAYASHI ◽  
Tetsuya BABA ◽  
Akira ONO
Keyword(s):  
Thermal Diffusivity ◽  
Infrared Radiation ◽  
Laser Flash ◽  
Radiation Thermometer ◽  
Diffusivity Measurements ◽  
Infrared Radiation Thermometer

scholarly journals A Method for Analyzing Local Climates by Using an Infrared Radiation Thermometer together with Topographic Factors

10.5109/24086 ◽  
1995 ◽  
Vol 39 (3/4) ◽  
pp. 243-254
Author(s):  
Makito Mori ◽  
Tetsuo Kobayashi ◽  
Takehiro Takemasa ◽  
Kazuhiro Takeshita ◽  
Kenji Wakimizu
Keyword(s):  
Infrared Radiation ◽  
Radiation Thermometer ◽  
Topographic Factors ◽  
Infrared Radiation Thermometer

Uncertainty of Thermal Diffusivity Measurements by Laser Flash Method

2005 ◽  
Vol 26 (6) ◽  
pp. 1883-1898 ◽  
Author(s):  
B. Hay ◽  
J. R. Filtz ◽  
J. Hameury ◽  
L. Rongione
Keyword(s):  
Thermal Diffusivity ◽  
Laser Flash ◽  
Laser Flash Method ◽  
Flash Method ◽  
Diffusivity Measurements

scholarly journals Thermal Diffusivity Measurements of Boron Oxide Melts by Laser Flash Method

1990 ◽  
Vol 98 (1135) ◽  
pp. 305-307 ◽  
Author(s):  
Gaku OGURA ◽  
In-Kook SUH ◽  
Hiromichi OHTA ◽  
Yoshio WASEDA
Keyword(s):  
Thermal Diffusivity ◽  
Boron Oxide ◽  
Laser Flash ◽  
Laser Flash Method ◽  
Flash Method ◽  
Diffusivity Measurements ◽  
Oxide Melts

scholarly journals Zero Drift Infrared Radiation Thermometer Using Chopper Stabilised Pre-Amplifier

2020 ◽  
Vol 10 (14) ◽  
pp. 4843
Author(s):  
Andrew D. Heeley ◽  
Matthew J. Hobbs ◽  
Jon R. Willmott
Keyword(s):  
Infrared Radiation ◽  
Calibration Procedure ◽  
Radiation Thermometer ◽  
Zero Drift ◽  
Voltage Noise ◽  
Op Amp ◽  
Offset Voltage ◽  
External Sources ◽  
Infrared Radiation Thermometer ◽  
Lower Voltage

A zero-drift, mid–wave infrared (MWIR) thermometer constructed using a chopper stabilised operational amplifier (op-amp) was compared against an identical thermometer that utilised a precision op-amp. The chopper stabilised op-amp resulted in a zero-drift infrared radiation thermometer (IRT) with approximately 75% lower offset voltage, 50% lower voltage noise and less susceptibility to perturbation by external sources. This was in comparison to the precision op-amp IRT when blanked by a cover at ambient temperature. Significantly, the zero-drift IRT demonstrated improved linearity for the measurement of target temperatures between 20 °C and 70 °C compared to the precision IRT. This eases the IRT calibration procedure, leading to improvement in the tolerance of the temperature measurement of such low target temperatures. The zero-drift IRT was demonstrated to measure a target temperature of 40 °C with a reduction in the root mean square (RMS) noise from 5 K to 1 K compared to the precision IRT.

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