A Temperature Transmitter with Autonomous Reconfiguring Function

2014 ◽  
Vol 536-537 ◽  
pp. 346-351
Author(s):  
Zhi Yang ◽  
Yi Xin Zhao ◽  
Jing Liu ◽  
Xiao Jun Wu
Keyword(s):  
Temperature Sensor ◽  
Temperature Sensors ◽  
External Temperature ◽  
Resistance Temperature Detector ◽  
Temperature Detector ◽  
Field Programmable ◽  
Physical Prototype ◽  
Reconfiguration Planning ◽  
Connection Type ◽  
Temperature Transmitter

In this paper, according to several common temperature sensors in the industrial field a temperature transmitter based on the reconfigurable field programmable gate array (FPGA) has been designed to ensure that a single device which can meet the requirements of the various applications. The transmitter can quickly and automatically identify the sensor type (ST) and connection type (CT) of external temperature sensor (ETS). It then can automatically search the reconfiguration scheme by reconfiguration identification and reconfiguration planning. The transmitter also reconfigures its inner structure by auto-deployment. Therefore, acquisition and processing the temperature with different ST and CT can be realized. In addition, a physical prototype is developed, and the effectiveness of the temperature transmitter with autonomous reconfiguring function (TTARF) is verified in the resistance temperature detector (RTD) application. The whole reconfiguration process is fully automated without human intervention.

Temperature Detecting System of Beer Fermentation Based on DS18B20

2010 ◽  
Vol 108-111 ◽  
pp. 898-902 ◽  
Author(s):  
Fen Ping Zhou ◽  
Hong Tao Ma ◽  
Bing Dong Sui ◽  
Jia Mo Sun
Keyword(s):  
Temperature Sensor ◽  
Detection System ◽  
Temperature Sensors ◽  
Beer Fermentation ◽  
Temperature Detection ◽  
Temperature Detector ◽  
High Intelligence ◽  
System Maintenance ◽  
Digital Temperature Sensor ◽  
Temperature Test

This Paper introduces a temperature detection system in beer fermentation. A temperature monitoring system with characteristics of bus topology structure is composed of industrial computer, temperature detector, bus converter, transmission bus and especially 1-wire digital temperature sensor DS18B20. Four-core cable is used to form a tree-like or star-like network, in which 54 digital temperature sensors existing on 18 fermentation tanks can be connected. The quantity of junction wires between temperature sensor and computer will be reduced greatly. Temperature detector provides power supply for bus converter and DS18B20 through Four-core cable. Because bus converter has used hardware fault detecting technology, the fault temperature sensor can automatically detach from the main bus and will not affect normal working of other sensor in network. So to solve the problem of a certain sensor or branch's damage causing the paralysis of entire bus. The length of detecting temperature bus can reach more than 500 meters. These all make system maintenance and expansion easy. The experiments show that this system is characterized by high intelligence, high-precision, capability of making temperature test on multi-points and compensating function. The method has a good applicable value to the temperature test.

Development of a Flexible Temperature Sensor Array System

2008 ◽  
Vol 381-382 ◽  
pp. 383-386 ◽  
Author(s):  
Yao Joe Yang ◽  
B.T. Chia ◽  
D.R. Chang ◽  
H.H. Liao ◽  
Wen Ping Shih ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Sensor Array ◽  
Flexible Substrate ◽  
Scanning System ◽  
Fabrication Technology ◽  
Resistance Temperature Detector ◽  
Sensing Material ◽  
Mems Fabrication ◽  
Temperature Detector ◽  
Lift Off

A flexible temperature sensor array and a scanning system are developed in this paper. A 16×16 temperature sensor array in a 25×20 mm2 area is fabricated on a flexible copper-PI substrate using MEMS fabrication technology. Platinum is employed as the temperature sensing material, which is often so called the resistance temperature detector (RTD). Copper patterns on both sides of the flexible substrate serve as the row and column interconnects for scanning circuitry. In each element of the temperature sensor array, the resistance of platinum, which is patterned by lift-off process, can be measured by the scanning system.

scholarly journals Flexible Temperature Sensors

2021 ◽  
Vol 9 ◽  
Author(s):  
Ruping Liu ◽  
Liang He ◽  
Meijuan Cao ◽  
Zhicheng Sun ◽  
Ruiqi Zhu ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Temperature Sensors ◽  
Accurate Information ◽  
Self Healing ◽  
Active Matrix ◽  
Temperature Detector ◽  
Energy Conversion And Storage ◽  
Self Powered ◽  
And Performance ◽  
Material Fabrication

Temperature reflects the balance between production and dissipate of heat. Flexible temperature sensors are primary sensors used for temperature monitoring. To obtain real-time and accurate information of temperature, different flexible temperature sensors are developed according to the principle of flexible resistance temperature detector (FRTC), flexible thermocouple, flexible thermistor and flexible thermochromic, showing great potential in energy conversion and storage. In order to obtain high integration and multifunction, various flexible temperature sensors are studied and optimized, including active-matrix flexible temperature sensor, self-powered flexible temperature sensor, self-healing flexible temperature sensor and self-cleaning flexible temperature sensor. This review focuses on the structure, material, fabrication and performance of flexible temperature sensors. Also, some typical applications of flexible temperature sensors are discussed and summarized.

scholarly journals Metrological characterisation of a textile temperature sensor in archaeological usage

ACTA IMEKO ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 166
Author(s):  
Andrea Zanobini
Keyword(s):  
Data Acquisition ◽  
Temperature Sensor ◽  
Metrological Characteristics ◽  
Resistance Temperature Detector ◽  
Data Acquisition Systems ◽  
Temperature Detector ◽  
Temperature And Humidity ◽  
New Generation

<p>This paper presents the study of a new generation textile temperature sensor in two different heated ovens. The first chamber was used to evaluate temperature and the second was used to evaluate both temperature and humidity. Data acquisition systems based on LabVIEW and Agilent were developed using thermocouples and Pt100 sensors. The results show many metrological characteristics that prove that the sensor is a resistance temperature detector.</p>

A Conformable Two-Dimensional Resistance Temperature Detector for Measuring Average Skin Temperature

2021 ◽  
Author(s):  
Laura Namisnak ◽  
Sepideh Khoshnevis ◽  
Kenneth R. Diller
Keyword(s):  
Surface Temperature ◽  
Skin Temperature ◽  
Infrared Thermography ◽  
Single Point ◽  
Wearable Sensors ◽  
Two Dimensional ◽  
Nonuniform Temperature ◽  
Resistance Temperature Detector ◽  
Temperature Detector ◽  
Average Skin

Abstract Various medical procedures are accomplished by manipulating skin temperature in a nonuniform pattern. Skin temperature monitoring is essential to assess conformance to protocol specifications and to prevent thermal injury. Existing solutions for skin temperature monitoring include single point sensors, such as thermocouples, and two-dimensional methods of sensing surface temperature, such as infrared thermography, and wearable technology. Single point sensors cannot detect the average temperature and consequently their measurements cannot be representative of average surface temperature in a nonuniform temperature field. Infrared thermography requires optical access, and wearable sensors may require complex manufacturing processes and impede the heat exchange with a source by introducing a layer of insulation. Our solution is a two-dimensional resistance temperature detector (2D RTD) created by knitting copper magnet wire into custom shapes. The 2D RTDs were calibrated, compared to one-dimensional sensors and wearable sensors, and analyzed for hysteresis, repeatability, and surface area conformation. Resistance and temperature were correlated with an R2 of 0.99. The 2D RTD proved to be a superior device for measuring average skin temperature exposed to a nonuniform temperature boundary in the absence of optical access such as when a full body thermal control garment is worn.

Analysis of Micro Structure and the Resistivity of Cu / Ni Thin Coat as a Low Temperature Sensor Using Electroplating Method Assisted with Magnetic Field outside of the Ion Flow

2021 ◽  
Vol 885 ◽  
pp. 141-147
Author(s):  
Winda Noor Santi ◽  
Moh. Toifur
Keyword(s):  
Magnetic Field ◽  
Low Temperature ◽  
Liquid Nitrogen ◽  
Micro Structure ◽  
Medical Field ◽  
Cold Temperatures ◽  
Ion Flow ◽  
Resistance Temperature Detector ◽  
Temperature Detector

Preservation of materials using liquid nitrogen media has been widely used. One of them is used in the medical field, namely cryonic technology. Cryonics is a method of preservation at cold temperatures using a cryoprotectant in liquid nitrogen. To maintain the quality of the material, a sensor that can detect the temperature of liquid nitrogen is needed. Low temperature sensors with Cu and Ni based Resistance Temperature Detector with layers (RTD) have been made, but these sensors have a layer of Ni deposits that are not yet homogeneous. So quality improvement is needed by adding an external magnetic field. Based on this, the aim of this research is to synthesize a thin layer of Cu / Ni using electroplating method assisted by external magnets parallel to the ion currents

Circadian rhythm changes in core temperature over the menstrual cycle: method for noninvasive monitoring

2000 ◽  
Vol 279 (4) ◽  
pp. R1316-R1320 ◽  
Author(s):  
Mary D. Coyne ◽  
Christina M. Kesick ◽  
Tammy J. Doherty ◽  
Margaret A. Kolka ◽  
Lou A. Stephenson
Keyword(s):  
Circadian Rhythm ◽  
Menstrual Cycle ◽  
Core Temperature ◽  
Temperature Sensor ◽  
Temperature Sensors ◽  
Cycle Phase ◽  
Noninvasive Method ◽  
Menstrual Cycle Phase ◽  
Cosinor Analysis ◽  
Temperature Amplitude

The purpose of this study was to determine whether core temperature (Tc) telemetry could be used in ambulatory women to track changes in the circadian Tc rhythm during different phases of the menstrual cycle and, more specifically, to detect impending ovulation. Tcwas measured in four women who ingested a series of disposable temperature sensors. Data were collected each minute for 2–7 days and analyzed in 36-h segments by automated cosinor analysis to determine the mesor (mean temperature), amplitude, period, acrophase (time of peak temperature), and predicted circadian minimum core temperature (Tc-min) for each cycle. The Tcmesor was higher ( P ≤ 0.001) in the luteal (L) phase (37.39 ±0.13°C) and lower in the preovulatory (P) phase (36.91 ±0.11°C) compared with the follicular (F) phase (37.08 ±0.13°C). The predicted Tc-min was also greater in L (37.06 ± 0.14°C) than in menses (M; 36.69 ± 0.13°C), F (36.6 ± 0.16°C), and P (36.38 ± 0.08°C) ( P ≤ 0.0001). During P, the predicted Tc-min was significantly decreased compared with M and F ( P ≤ 0.0001). The amplitude of the Tc rhythm was significantly reduced in L compared with all other phases ( P ≤ 0.005). Neither the period nor acrophase was affected by menstrual cycle phase in ambulatory subjects. The use of an ingestible temperature sensor in conjunction with fast and accurate cosinor analysis provides a noninvasive method to mark menstrual phases, including the critical preovulatory period.

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