Designing an analog circuit can be a frustrating experience, as noted by Nick Cornford in his Design Idea (DI), “ DIY RTD for a DMM.” With a fortnight’s struggle, I completed the design of 4 mA to ...

Excitation Technique: RTDs and Thermistors being passive elements need a current excitation source to make measurements. Highly stable and accurately matched current sources with low drift are ...

Figure 2 shows a simplified block diagram of the temperature sensor design. The design uses Semitec 103AP-2 thermistor, a Vishay Precision Group 500Ω ±0.1% precision resistor, Intersil’s ISL28634 ...

The old saying “if it ain’t broke, don’t fix it” cautions against tampering with something that performs reliably and regularly proves its worth. Arguably, this advice applies to the circuit design ...

This easily covers the RTD temperature range of –200°C to 384°C, according to the sensor datasheet from Omega Engineering Corp. 1 By changing the gain of the differential amplifier or the ...

OVERVIEW: A wireless temperature sensor employing 8 three wire PT100 RTDs transmitting the acquired data using Bluetooth. The aim of this project was to measure and wirelessly transmit temperature ...

If you’re looking for a great RTD sensor, today is your lucky day because we have a lovely Adafruit RTD Sensor Amplifier with the MAX31865 breakout for use with any 2, 3 or 4 wire PT1000 RTD!

However, once RTD accuracy is understood, more questions may still remain. What avenues are available if an RTD is being used for process control, and the standard tolerance bandwidth according to IEC ...