Test & Measurement: Small Temperature Probe Responds Quickly In Harsh Environments

Oct. 18, 2004

Certain applications targeting harsh environments demand a small sensor with a fast thermal response. That's where the PM series of miniature temperature probes steps in. Made of 300 series stainless steel, the housing measures 0.0188 by 0.500 in. The tight tolerance of the housing's outside diameter of ±0.005 in. allows for designs with small clearances, further improving thermal response time. The series comes with a choice of negative-temperature-coefficient thermistor or resistance-temperature-detector elements with a variety of resistance curves and accuracies. Other options include custom wire or cable and thermally conductive epoxy to maximize response time. The probe costs $5 each in volume lots. Lead time is two weeks or less.

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About the Author

Roger Allan

Roger Allan is an electronics journalism veteran, and served as Electronic Design's Executive Editor for 15 of those years. He has covered just about every technology beat from semiconductors, components, packaging and power devices, to communications, test and measurement, automotive electronics, robotics, medical electronics, military electronics, robotics, and industrial electronics. His specialties include MEMS and nanoelectronics technologies. He is a contributor to the McGraw Hill Annual Encyclopedia of Science and Technology. He is also a Life Senior Member of the IEEE and holds a BSEE from New York University's School of Engineering and Science. Roger has worked for major electronics magazines besides Electronic Design, including the IEEE Spectrum, Electronics, EDN, Electronic Products, and the British New Scientist. He also has working experience in the electronics industry as a design engineer in filters, power supplies and control systems.

After his retirement from Electronic Design Magazine, He has been extensively contributing articles for Penton’s Electronic Design, Power Electronics Technology, Energy Efficiency and Technology (EE&T) and Microwaves RF Magazine, covering all of the aforementioned electronics segments as well as energy efficiency, harvesting and related technologies. He has also contributed articles to other electronics technology magazines worldwide.

He is a “jack of all trades and a master in leading-edge technologies” like MEMS, nanolectronics, autonomous vehicles, artificial intelligence, military electronics, biometrics, implantable medical devices, and energy harvesting and related technologies.