Dynamic Characterization of Thermocouples under Double-Pulse Laser-Induced Thermal Excitation

This study investigated the dynamic characteristics of thermocouples by using double-pulse laser excitation for dynamic temperature calibration under extreme conditions. An experimental device was constructed for double-pulse laser calibration; the device uses a digital pulse delay trigger to precis...

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Main Authors: Hongbo Yang, Chengxu Tu, Zhouxia Jia, Qingfu Meng, Jinghao Zhang, Jiaxiang Wang, Yalei Zhao, Chenbin Zhu, Fubing Bao
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/5/2367
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author Hongbo Yang
Chengxu Tu
Zhouxia Jia
Qingfu Meng
Jinghao Zhang
Jiaxiang Wang
Yalei Zhao
Chenbin Zhu
Fubing Bao
author_facet Hongbo Yang
Chengxu Tu
Zhouxia Jia
Qingfu Meng
Jinghao Zhang
Jiaxiang Wang
Yalei Zhao
Chenbin Zhu
Fubing Bao
author_sort Hongbo Yang
collection DOAJ
description This study investigated the dynamic characteristics of thermocouples by using double-pulse laser excitation for dynamic temperature calibration under extreme conditions. An experimental device was constructed for double-pulse laser calibration; the device uses a digital pulse delay trigger to precisely control the double-pulse laser to achieve sub-microsecond dual temperature excitation with adjustable time intervals. The time constants of thermocouples under single-pulse laser excitation and double-pulse laser excitation were evaluated. In addition, the variation trends of thermocouple time constants under different double-pulse laser time intervals were analyzed. The experimental results indicated that the time constant increases and then decreases with the decrease in the time interval of the double-pulse laser. A method for dynamic temperature calibration was established for the evaluation of the dynamic characteristics of temperature sensors.
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spelling doaj.art-9325cb97eb4e411a853a83aaf9d16ffd2023-11-17T08:33:45ZengMDPI AGSensors1424-82202023-02-01235236710.3390/s23052367Dynamic Characterization of Thermocouples under Double-Pulse Laser-Induced Thermal ExcitationHongbo Yang0Chengxu Tu1Zhouxia Jia2Qingfu Meng3Jinghao Zhang4Jiaxiang Wang5Yalei Zhao6Chenbin Zhu7Fubing Bao8Zhejiang Provincial Key Laboratory of Flow Measurement Technology, China Jiliang University, Hangzhou 310018, ChinaZhejiang Provincial Key Laboratory of Flow Measurement Technology, China Jiliang University, Hangzhou 310018, ChinaScience and Technology on Reliability and Environment Engineering Laboratory, Beijing Institute of Structure and Environment Engineering, Beijing 100076, ChinaZhejiang Provincial Key Laboratory of Flow Measurement Technology, China Jiliang University, Hangzhou 310018, ChinaZhejiang Provincial Key Laboratory of Flow Measurement Technology, China Jiliang University, Hangzhou 310018, ChinaZhejiang Provincial Key Laboratory of Flow Measurement Technology, China Jiliang University, Hangzhou 310018, ChinaZhejiang Provincial Key Laboratory of Flow Measurement Technology, China Jiliang University, Hangzhou 310018, ChinaShanghai Institute of Measurement and Testing Technology, Shanghai 201203, ChinaZhejiang Provincial Key Laboratory of Flow Measurement Technology, China Jiliang University, Hangzhou 310018, ChinaThis study investigated the dynamic characteristics of thermocouples by using double-pulse laser excitation for dynamic temperature calibration under extreme conditions. An experimental device was constructed for double-pulse laser calibration; the device uses a digital pulse delay trigger to precisely control the double-pulse laser to achieve sub-microsecond dual temperature excitation with adjustable time intervals. The time constants of thermocouples under single-pulse laser excitation and double-pulse laser excitation were evaluated. In addition, the variation trends of thermocouple time constants under different double-pulse laser time intervals were analyzed. The experimental results indicated that the time constant increases and then decreases with the decrease in the time interval of the double-pulse laser. A method for dynamic temperature calibration was established for the evaluation of the dynamic characteristics of temperature sensors.https://www.mdpi.com/1424-8220/23/5/2367double pulse laserthermocoupledynamic calibrationtime constant
spellingShingle Hongbo Yang
Chengxu Tu
Zhouxia Jia
Qingfu Meng
Jinghao Zhang
Jiaxiang Wang
Yalei Zhao
Chenbin Zhu
Fubing Bao
Dynamic Characterization of Thermocouples under Double-Pulse Laser-Induced Thermal Excitation
Sensors
double pulse laser
thermocouple
dynamic calibration
time constant
title Dynamic Characterization of Thermocouples under Double-Pulse Laser-Induced Thermal Excitation
title_full Dynamic Characterization of Thermocouples under Double-Pulse Laser-Induced Thermal Excitation
title_fullStr Dynamic Characterization of Thermocouples under Double-Pulse Laser-Induced Thermal Excitation
title_full_unstemmed Dynamic Characterization of Thermocouples under Double-Pulse Laser-Induced Thermal Excitation
title_short Dynamic Characterization of Thermocouples under Double-Pulse Laser-Induced Thermal Excitation
title_sort dynamic characterization of thermocouples under double pulse laser induced thermal excitation
topic double pulse laser
thermocouple
dynamic calibration
time constant
url https://www.mdpi.com/1424-8220/23/5/2367
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