From Microchip Technology, Inc.
Of all of the sensing technologies, temperature sensing is the most common. This phenomena can be explained by citing examples in a multitude of applications where knowing and using the actual or relative temperature is critical. For instance, other sensors such as pressure, force, flow, level, and position many times require temperature monitoring in order to insure accuracy. As an example, pressure and force are usually sensed with resistive Wheatstone bridge configurations. The temperature errors of the resistive elements of these bridges can exceed the actual measurement range of the sensor, making the pressure sensor?s output fairly useless, unless the temperature of the bridge is known. Flow and level sensor accuracies are dependent on the density of the liquid or gas.
Product Announcements
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Airflow Sensors from Honeywell - Honeywell's airflow sensors feature advanced chip design and microstructure technology for a faster, smaller, more sensitive microbridge. Available in amplified and...
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Measurement Specialties, Inc. (NASDAQ: MEAS) has just improved its existing board level pressure sensors, the MS4525 and MS4525DO, by adding a new vacuum pressure reference type. It is available at...
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Measurement Specialties, Inc. (NASDAQ: MEAS) has just released to production its new MS5637-02BA03 digital barometric pressure sensor module. This ultra-compact 3x3x0.9mm micro altimeter requires only...
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Topics of Interest
Signal-conditioning IC simplifies strain-gage bridge sensor setup. Strain-gage sensors are used in many applications including manufacturing, process control, and research. They convert strain into an...
Analog Devices Technical Staff Walt Kester, Editor
Typically a sensor cannot be directly connected to the instruments that record, monitor, or process its signal, because the signal may be...
John Fontes, Senior Applications Engineer, Honeywell Sensing and Control
Overview
Because temperature can have such a significant effect on materials and processes at the molecular level, it is...
Resistive sensors configured as Wheatstone bridges are primarily used to sense pressure, temperature or loads. An external A/D converter (ADC) and a digitally Programmable Gain Amplifier (PGA) can...
In many pressure applications, it is necessary to isolate the sensing element from the material being sensed. The components used for the sensing element can be damaged or in other ways rendered...
