temperature sensor Articles
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Thermistors
NTC thermistor temperature sensors Thermistor is a semiconductor resistor whose resistance various significantly with temperature. Depended on the character of these changes we distinguish: NTC thermistors (negative temperature coefficient) whose resistance drops when the temperature is rising. PTC thermistors (positive temperature coefficient) whose resistance rises when the ...
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RTD`S With Metallized Backside
In definition, response time refers to the interval in time a system needs to react to a given input. Decreasing response time while maintaining a high quality and accuracy is an issue which many suppliers are facing on a daily basis. Temperature sensors are mostly used in assembly constructions in order to protect the sensor element from process media or an aggressive atmosphere. Implementing ...
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Using external thermistors in ultrasonic level measurement
This article describes the need, use and advantages of using an external temperature sensor for ultrasonic based level ...
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High Temperature Dry Block Calibrator
H23500 High-temperature Dry Block Calibrator is indeed a valuable metrological product, especially for calibration labs that deal with high-temperature sensors from 50 ˚C to 600 ˚C and 500 ˚C APPLICATIONS OF H23500Range 50 ° C to 500 °CThe High Temperature Dry Block Calibrator finds application across various industries where accurate and reliable temperature calibration is essential. Some of ...
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Apple Watch Series 8 may not have a body temperature sensor after all
If you were hoping for more exciting updates with the Apple Watch Series 8, you might have to start tempering expectations. While it was initially thought that the next-generation watch would have a body temperature sensor, it’s looking like that may not be the case after all. A body temperature sensor for the Series 8 has been heavily rumored for some time now. ...
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Low Temperature Dry Block Calibrator
The Low Temperature Dry Block Calibrator, with a range spanning from -40°C to 120°C, stands out as an exceptional instrument for the temperature calibration and verification of a diverse array of temperature measuring devices and sensors. Its cutting-edge thermal design guarantees unparalleled precision, accuracy, and consistency. This calibrator boasts a compact and rugged build, facilitating ...
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PT sensors
Temperature detectors based on the phenomenon of metal resistance changes with the change of temperature are probably the most popular type of temperature sensors used in industry sector. Most popular temperature resistors are based on platinum and nickel. Historically the first sensor made was the platinum sensor with the resistance of 100 and labelled PT100. Madur company uses the platinum ...
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GPRS Temperature Sensor (GTH202)
Overview We provide a plug and play GPRS temperature or temperature and humidity sensor kit (Model: GTH202). Its standard inclusion has a Wi-Fi data logger, a temperature or temperature & humidity sensor and a USB power cable. With the web-based monitoring portal and mobile apps, you can easily remotely monitor the temperature and humidity in different locations, such as your bedroom, IT ...
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How Does a Thermal Flowmeter Work?
A thermal flowmeter works by measuring the total mass flow rate of a fluid flowing through a pipe or duct. In a thermal flowmeter’s simplest working configuration, fluid flows past a heated thermal sensor and a temperature sensor. As the molecules of the fluid flow past the heated thermal sensor, heat is lost to the flowing fluid. The thermal sensor cools down while the temperature sensor ...
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Accelerometers with integral temperature sensing RTD vs Semi-Conductor Sensors
Hansford Sensors offer a range of temperature sensors to suit various applications. Below we look at the differences between accelerometers with integral temperature sensing RTD and Semi-Conductor ...
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Road air temperature sensor comparison
Real world evaluation of the protective properties of the helical radiation shield against one of the best multi-plate radiation screens in use today for roadside weather station applications. WINTER ROAD SEASON 2015/16 (NOV. 2015 – MAY 2016) TEST The shields with temperature and humidity sensors were installed on the roadside for the duration of the 2015/2016 winter season. Winter ...
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High Temperature Dry Block Calibrator
The High Temperature Dry Block Calibrator, with a range spanning from 50°C to 600°C, stands out as an exceptional instrument for the calibration and verification of a diverse array of temperature measuring devices and sensors. Its cutting-edge thermal design guarantees unparalleled precision, accuracy, and consistency. This calibrator boasts a compact and rugged build, facilitating ...
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Low Temperature Dry Block Calibrator
The Low Temperature Dry Block Calibrator, with a range spanning from -40°C to 120°C, stands out as an exceptional instrument for the temperature calibration and verification of a diverse array of temperature measuring devices and sensors. Its cutting-edge thermal design guarantees unparalleled precision, accuracy, and consistency. This calibrator boasts a compact and rugged build, ...
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Accuracy in temperature sensor response time estimation for new nuclear reactor designs
One method for measuring the response time of temperature sensors, the plunge test, verifies that the sensor has a suitable response time in the laboratory before installation. However, plunge test results cannot be extrapolated to the response time in an operating plant because response time is affected by multiple factors such as the ratio of internal heat-transfer resistance to the surface ...
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Tech Tip: Deploying Sea-Bird CTD in Ice
Large numbers of Sea-Bird conductivity instruments have been used in Arctic and Antarctic programs. Special accommodation to keep temperature, conductivity, oxygen, and optical sensors at or above 0° C is advised. Often, the CTD is brought inside protective doors between casts to achieve this. Conductivity Cell When freezing is possible, we recommend that the conductivity sensor be stored ...
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Response time testing of temperature sensors using loop current step response method
The Loop Current Step Response (LCSR) method is used for in–situ response time testing of temperature sensors as installed in an industrial process. This paper presents the theoretical foundation of the LCSR (test theory, LCSR equation and test procedures) and the author's research to validate its use in nuclear power industry applications. The validity of the LCSR method depends on how ...
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Guide to Choosing the Right Temperature Sensors
Temperature measurements are among the most common data logging applications found across a broad variety of industries including medical monitoring, cold chain integrity, machine monitoring, and many more. There are 4 main types of temperature sensors that are used with data loggers, and it can seem like a lengthy decision to find the right type. Thermocouples are the most common type of ...
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RTDs vs. Thermocouples
Selecting the right temperature sensors for each application requires a close examination of the requirements. Imagine you are an instrumentation engineer looking at the prints for a new plant, and you see the many locations marked out for temperature transducers. You wonder, what exactly has been specified to fill each space? Thermocouples, because of the lower cost and familiarity, or RTDs, ...
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How do you heat in a vacuum oven?
In a vacuum oven there is less air present to conduct the heat, so how do vacuum ovens ensure suitable heating of the samples? The Memmert VO series of vacuum ovens use a direct contact principle; each “thermoshelf” is heated so that all samples on that shelf receive heat by direct contact. The direct heating is vulcanised onto the undersurface of the “thermoshelf” and ...
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Lövön Sweden Project - Case Study
The embankment dam at Lövön was built between 1972 and 1973 and has a total length of 1500m, and a height of 25m. Leakage water cannot be collected and measured by conventional leakage systems, due to a high downstream water level. Two optical fibre loops were installed in 1998 to measure the temperature upstream, above and downstream from the core. The optical fibres are ...
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