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Editor's Note: Continuing our celebration of Sensors' 25th birthday, we're including another gem from our archives.
Sensor Design & Technology
Capacitive Sensor Operation Part I: The Basics
By: Mark Kretschmar, Lion Precision
Part 1 of this two-part article reviews the concepts and theory of capacitive sensing to help to optimize capacitive sensor performance. Part 2 of this article will discuss how to put these concepts to work. (Part 2 of this article will appear next month.) more >>
A Microflow-Based Differential Pressure Sensor
By: Oleg Grudin, Les Landsberger, and Gennadiy Frolov, Microbridge Technologies Canada Inc.
This article describes prototypes of a novel thermoanemometer-type nanoliter-airflow sensor, integrated onchip with analog CMOS signal conditioning circuitry and with analog adjustability that allows accurate sensing of low differential pressures. more >>
sensors at work
Infrared Thermography for Remote Condition Monitoring and Control
By: Corey Maple, MiniMax Corp. and Leonard Phillips, FLIR Systems Inc.
Optical surveillance systems can work the night shift too, with the addition of IR cameras. This Web-enabled system watches for intruders and other anomalies and either notifies the appropriate personnel or decides on its own what action to take. more >>
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