Low-Cost Fiber-Optic Temperature Measurement System for High-Voltage Electrical Power Equipment

2010 ◽  
Vol 59 (4) ◽  
pp. 923-933 ◽  
Author(s):  
Yuhan Ding ◽  
Xianzhong Dai ◽  
Tao Zhang
Keyword(s):  
Temperature Measurement ◽  
High Voltage ◽  
Measurement System ◽  
Fiber Optic ◽  
Low Cost ◽  
Electrical Power ◽  
Power Equipment ◽  
Temperature Measurement System ◽  
Fiber Optic Temperature

Temperature Measurements for Transmission Lines Based on Passive Optical Sensing

2014 ◽  
Vol 543-547 ◽  
pp. 1035-1041 ◽  
Author(s):  
Song Xiang Liu ◽  
Wei Xiao ◽  
Hong Bo Chen ◽  
Huan Bai ◽  
Yun Feng ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Temperature Measurement ◽  
Real Time ◽  
High Voltage ◽  
Measurement System ◽  
Transmission Lines ◽  
Optical Sensing ◽  
Temperature Changes ◽  
Fbg Sensors ◽  
Temperature Measurement System

In order to achieve real-time monitoring of high-voltage lines, a temperature measurement system for transmission lines based on the online passive FBG sensors is proposed. The temperature linearity of the FBG sensors designed by bi-metal package is greater than 0.999, which guarantees great mechanical strength and temperature measurement performance. The sensors are fixed to the lines by a specially designed fixture. This temperature measurement system for transmission lines based on optical sensing is running on 110kV line with strong scalability, which could monitor temperature changes of the conductor in real time.

Design of Temperature Measurement System Based on Microcontroller

2014 ◽  
Vol 513-517 ◽  
pp. 4039-4042
Author(s):  
Cao Rui ◽  
Kong Jun Bao
Keyword(s):  
Temperature Measurement ◽  
Real Time ◽  
Measurement System ◽  
Low Cost ◽  
Digital Signal ◽  
Single Chip ◽  
Display Function ◽  
Stable Performance ◽  
Temperature Measurement System ◽  
Digital Temperature Sensor

This temperature measurement system is based on the control of AT89S52 single chip microcontroller, with temperature display function. Temperature information is changed into digital signal directly by a single bus digital temperature sensor DS18B20, and the digital signal is sent into microcontroller for real-time acquisition. The results are displayed through LCD module 1602 in real time. The system is with the characteristics of low cost, high precision, stable performance and convenient operation. The system can be extended to multi-point temperature detecting system easily, and adding temperature transfinite alarm function.

Design of Ultrasonic Gas Temperature Measurement System with Humidity Self-Correction

2011 ◽  
Vol 383-390 ◽  
pp. 5166-5170
Author(s):  
Ming Lin Yao ◽  
Yu Jun Guan ◽  
Cui Ying Dong
Keyword(s):  
Temperature Measurement ◽  
Measurement System ◽  
Low Cost ◽  
Ultrasonic Transducer ◽  
Water Vapor Pressure ◽  
Propagation Speed ◽  
Gas Temperature ◽  
Single Chip ◽  
Pressure Meter ◽  
Temperature Measurement System

In the ultrasonic gas temperature measurement system, the principle is that the velocity of sound in gas is a function of temperature. But because the propagation speed of ultrasonic wave can be easily affected by humidity, the accuracy of the gas temperature measurement will be affected too. This dissertation will implement the ultrasonic gas temperature measurement system with humidity correction suitable for all kinds of environment humidity. This type of ultrasonic technique is a highly efficient algorithm with the advantages of both time-of-flight method and phase shift method. And the system is realized with a single-chip microcomputer-based with a relative humidity/water vapor pressure meter. The main advantages of this ultrasonic temperature measurement system are high resolution, using narrow-bandwidth ultrasonic transducer of low cost and ease of implementation.

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