scholarly journals 400 °C Sensor Based on Ni/4H-SiC Schottky Diode for Reliable Temperature Monitoring in Industrial Environments

Sensors ◽  
2019 ◽  
Vol 19 (10) ◽  
pp. 2384 ◽  
Author(s):  
Florin Draghici ◽  
Gheorghe Brezeanu ◽  
Gheorghe Pristavu ◽  
Razvan Pascu ◽  
Marian Badila ◽  
...  
Keyword(s):  
Schottky Diode ◽  
Industrial Applications ◽  
Temperature Monitoring ◽  
Signal Acquisition ◽  
Sensing Element ◽  
Detection Range ◽  
Temperature Probe ◽  
Temperature Detection ◽  
Reliable Temperature ◽  
Standard Output

This paper presents a high-temperature probe suitable for operating in harsh industrial applications as a reliable alternative to low-lifespan conventional solutions, such as thermocouples. The temperature sensing element is a Schottky diode fabricated on 4H-SiC wafers, with Ni as the Schottky metal, which allows operation at temperatures up to 400 °C, with sensitivities over 2 mV/°C and excellent linearity (R2 > 99.99%). The temperature probe also includes dedicated circuitry for signal acquisition and conversion to the 4 mA–20 mA industrial standard output signal. This read-out circuit can be calibrated for linear response over a tunable temperature detection range. The entire system is designed for full electrical and mechanical compatibility with existing conventional probe casings, allowing for seamless implementation in a factory’s sensor network. Such sensors are tested alongside standard thermocouples, with matching temperature monitoring results, over several months, in real working conditions (a cement factory), up to 400 °C.

Fibre optic temperature sensing: A new tool for temperature measurements in boreholes

Geophysics ◽  
1996 ◽  
Vol 61 (4) ◽  
pp. 1065-1067 ◽  
Author(s):  
Stephan Großwig ◽  
Eckart Hurtig ◽  
Katrin Kühn
Keyword(s):  
Temperature Monitoring ◽  
Temperature Sensing ◽  
Temperature Measurements ◽  
New Approach ◽  
Temperature Probe ◽  
Stop And Go ◽  
First Results ◽  
Optical Fiber Sensing ◽  
Distributed Optical Fiber ◽  
Fiber Optic Temperature

Usually, the temperature in boreholes is determined using a standard temperature probe. The logging technique is either “stop and go”, or the probe is lowered as a moving probe into the borehole using a controlled speed. Distributed temperature probe arrays installed permanently in a borehole are an alternative to moving probes and can be applied especially for temperature monitoring even under conditions where moving probes cannot be used. The distributed optical fiber sensing technique represents a new approach for temperature measurements. The basis for this method is given in Boiarski (1993), Dakin et al. (1985), Farries and Rogers (1984), Hartog and Gamble (1991), Rogers (1988), Rogers (1993). First results using fiber optic temperature sensing in boreholes and temperature monitoring for studying geotechnical and environmental problems (e.g., waste deposits) are published in Hurtig et al. (1993; 1994; 1995) and Hurtig and Schrötter (1993).

Multiple ratiometric thermometry using electronic transitions between Stark sublevels of Er3+ for reliable temperature detection

2018 ◽  
Vol 756 ◽  
pp. 208-211 ◽  
Author(s):  
Rui-Qi Piao ◽  
Da-Yu Liu ◽  
Ning Yuan ◽  
Zi-Bo Zhang ◽  
Xiao-Fei Yang ◽  
...  
Keyword(s):  
Electronic Transitions ◽  
Temperature Detection ◽  
Reliable Temperature

scholarly journals PEDOT:PSS-Based Temperature-Detection Thread for Wearable Devices

2018 ◽  
Author(s):  
Jin-Woo Lee ◽  
Dong-Cheul Han ◽  
Han-Jae Shin ◽  
Se-Hyeok Yeom ◽  
Byeong-Kwon Ju ◽  
...  
Keyword(s):  
Negative Temperature Coefficient ◽  
Negative Temperature ◽  
Wearable Devices ◽  
Temperature Sensors ◽  
Temperature Sensing ◽  
Polystyrene Sulfonate ◽  
Sensing Element ◽  
Temperature Detection ◽  
Military Applications ◽  
P Type

In this research, we developed a wearable temperature-sensing element by dip dyeing threads in poly (3, 4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) (p-type conducting polymer) solution. The PEDOT:PSS was used to  dye the textile and it exhibited negative temperature coefficient characteristics in which the resistance decreases as the temperature increases. The fabricated temperature-detection thread achieved a sensitivity of 167.1 W/°C with 99.8% linearity in the temperature range of -50 to 80 °C. We anticipate that temperature sensors that apply our technology will be made as stitch- or textile-type for wearable devices, and they will be widely adopted for different applications such as in fitness, leisure, healthcare, medical treatment, infotainment, industry, and military applications, among others.

scholarly journals Building an HMI and Demo Application of WSN-based Industrial Control Systems

2011 ◽  
Vol 7 (2) ◽  
pp. 107-111
Author(s):  
Ali Abed ◽  
AbdulAdhem Ali ◽  
Nauman Aslam
Keyword(s):  
Control Systems ◽  
Low Cost ◽  
Data Access ◽  
Industrial Applications ◽  
Base Station ◽  
Temperature Monitoring ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Monitoring And Control ◽  
And Control

In this paper we present the details of methodology pursued in implementation of an HMI and Demo Temperature Monitoring application for wireless sensor-based distributed control systems. The application of WSN for a temperature monitoring and control is composed of a number of sensor nodes (motes) with a networking capability that can be deployed for monitoring and control purposes. The temperature is measured in the real time by the sensor boards that sample and send the data to the monitoring computer through a base station or gateway. This paper proposes how such monitoring system can be setup emphasizing on the aspects of low cost, energy-efficient, easy ad-hoc installation and easy handling and maintenance. This paper focuses on the overall potential of wireless sensor nodes and networking in industrial applications. A specific case study is given for the measurement of temperature (with thermistor or thermocouple), humidity, light and the health of the WSN. The focus was not on these four types of measurements and analysis but rather on the design of a communication protocol and building of an HMI software for monitoring. So, a set of system design requirements are developed that covered the use of the wireless platforms, the design of sensor network, the capabilities for remote data access and management, the connection between the WSN and an HMI software designed with MATLAB.

scholarly journals PEDOT:PSS-Based Temperature-Detection Thread for Wearable Devices

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 2996 ◽  
Author(s):  
Jin-Woo Lee ◽  
Dong-Cheul Han ◽  
Han-Jae Shin ◽  
Se-Hyeok Yeom ◽  
Byeong-Kwon Ju ◽  
...  
Keyword(s):  
Negative Temperature Coefficient ◽  
Negative Temperature ◽  
Wearable Devices ◽  
Temperature Sensors ◽  
Temperature Sensing ◽  
Polystyrene Sulfonate ◽  
Sensing Element ◽  
Temperature Detection ◽  
Military Applications ◽  
P Type

In this research, we developed a wearable temperature-sensing element by dip dyeing threads in poly (3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) (p-type conducting polymer) solution. The PEDOT:PSS was used to dye the textile and it exhibited negative temperature coefficient characteristics in which the resistance decreases as the temperature increases. The fabricated temperature-detection thread achieved a sensitivity of 167.1 Ω/°C with 99.8% linearity in the temperature range of −50 °C to 80 °C. We anticipate that temperature sensors that apply our technology will be made as stitch- or textile-type for wearable devices, and they will be widely adopted for different applications such as in fitness, leisure, healthcare, medical treatment, infotainment, industry, and military applications, among others.

scholarly journals Reliable temperature probe monitoring - Favorable esophageal motion for consistent probe contact during atrial fibrillation catheter ablation

2013 ◽  
Vol 29 (5) ◽  
pp. 300-301
Author(s):  
Masahiro Esato ◽  
Yoshitomi Kida ◽  
Naoto Nishina ◽  
Hiroki Mani ◽  
Hiroki Kitajima ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Catheter Ablation ◽  
Temperature Probe ◽  
Reliable Temperature ◽  
Esophageal Motion
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