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Compression load cells

Statek

  • Force sensor / strain gauge

DETF

Article: 00027458

Force sensor / strain gauge

Doubled-ended tuning-fork force-sensors

OVERVIEW
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, as shown in Figure 1. 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, as shown in Figure 2. Once calibrated, measuring this change in frequency gives the applied force. Because the DETF force-sensors operate on frequency-based priniciples, they are immune to amplitude noise as well as noise at frequencies other than at the frequency of the sensor. Asa 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.

Specifications

  • Technology: strain gauge
  • Rated force: Min.: 0 N

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