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PRODUCT INFORMATION

Doubled-ended tuning-fork force-sensors

Overview Features

Statek has designed and manufactured quartz-crystal resonators using photolithographic and chemical milling methods for over three decades and has applied this expertise and capability to now offer double-ended tuning-fork (DETF) force-sensors. Highly sensitive Small size Operates based on frequency principles High signal-to-noise-ratio Low aging Designed for customer specific applications

Applications

Accelerometers Pressure sensors Precision scales

Further Information

We invite you to discuss your custom force sensing requirements with us at (714) 639-7810 or sales@statek.com.
Figure 1—A picture of one of Statek’s DETF force-sensors.

Technical papers

Chuang, Shih S., Force Sensor Using Double-Ended Tuning Fork Quartz Crystals The resonant frequency of the DETF force-sensor is a function of its dimensions, electrode configuration, and the applied force. Compression or extension of the sensor causes a corresponding change in frequency. Once calibrated, measuring this change in frequency gives the applied force. Because the DETF force-sensors operate on frequency-based principles, they are immune to amplitude noise as well as noise at frequencies other than at the frequency of the sensor. As a consequence, the signals in the system can operate at full amplitude, thereby avoiding the noise that usually plagues low-level measurements. Quartz force-sensors offer further advantages over other force sensing technologies such as sensitivity, small size, low mass, and stable performance. We can customize the size of the sensor to fit your application.
th , Proceedings of the 37 Annual Frequency Control Symposium, 1983, pp. 248–254.
Rev. A Statek Corporation, 512 N. Main St., Orange, CA 92868 714-639-7810 Fax 714-997-1256 www.statek.com