scholarly journals Measurement of grinding temperature of atmospheric-sintered Si3N4 by an infrared radiation thermometer using fluoride optical fiber.

1990 ◽  
Vol 56 (8) ◽  
pp. 1452-1455
Author(s):  
TAKASHI UEDA
Keyword(s):  
Optical Fiber ◽  
Infrared Radiation ◽  
Radiation Thermometer ◽  
Grinding Temperature ◽  
Infrared Radiation Thermometer

Infrared radiation thermometer using a silver halide optical fiber for thermal ablation

2009 ◽  
Vol 16 (3) ◽  
pp. 387-391 ◽  
Author(s):  
Wook Jae Yoo ◽  
Dong Hyun Cho ◽  
Kyoung Won Jang ◽  
Sang Hun Shin ◽  
Jeong Ki Seo ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Infrared Radiation ◽  
Thermal Ablation ◽  
Silver Halide ◽  
Radiation Thermometer ◽  
Silver Halide Optical Fiber ◽  
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

Measurement of Grinding Temperature Using Infrared Radiation Pyrometer With Optical Fiber

1986 ◽  
Vol 108 (4) ◽  
pp. 247-251 ◽  
Author(s):  
T. Ueda ◽  
A. Hosokawa ◽  
A. Yamamoto
Keyword(s):  
Optical Fiber ◽  
Response Time ◽  
Infrared Radiation ◽  
Spot Welding ◽  
Response Speed ◽  
Great Accuracy ◽  
Grinding Temperature ◽  
Radiation Pyrometer ◽  
Heat Pulses

The heat pulses produced by cutting grains in a workpiece were measured using an infrared radiation pyrometer connected by means of an optical fiber. The results obtained were compared with those from a thermocouple to investigate the effect of differences in response speed on the output. The I.R.P., using an InAs cell as a detector which has a response time in the order of μs, can detect heat pulses with great accuracy and its signal trace versus time has many sharp peaks. The thermocouple formed by spot welding is inferior in response speed, and less accurate in registering heat pulses.

Measurement of Grinding Temperature of Ceramics Using Infrared Radiation Pyrometer with Optical Fiber

1992 ◽  
Vol 114 (3) ◽  
pp. 317-322 ◽  
Author(s):  
T. Ueda ◽  
K. Yamada ◽  
T. Sugita
Keyword(s):  
Surface Layer ◽  
Temperature Distribution ◽  
Optical Fiber ◽  
Infrared Radiation ◽  
Grinding Temperature ◽  
Radiation Pyrometer ◽  
Fluoride Fiber ◽  
Grinding Power

The grinding temperature in the surface layer of a ceramic workpiece was measured using an IRP (infrared radiation pyrometer) connected by means of an optical fiber. Two types of optical fiber were employed: fluoride fiber and chalcogenide fiber. Si3N4, SiC, and Al2O3 were used as the work materials. The output waves of I.R.P. of Si3N4 and Al2O3 appear as curves with many peaks which are related to the infrared energy emitted from the cutting grains, but that of SiC shows no peaks at all. The highest grinding temperature was obtained in the case of Si3N4 whose grinding power is the largest of these three materials. The temperature distribution in the surface layer of the ceramics was much different from that of the steel.

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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