June 4, 2007 — Knowles Acoustics has introduced its Ultrasonic Acoustic Sensor (UAS) for use as a component to detect/receive ultrasonic sound in air. The Ultrasonic Acoustic Sensor uses MEMS innovations to provide performance over a wide environmental range. Sampling and low volume production is being offered now with mass production available beginning of Q2 2007. Pricing is comparative to current piezo ultrasonic receiving sensors on the market.

Compared to conventional ultrasonic sensors that have a narrow frequency band of detection, the Knowles sensor promises to capture a wide frequency range (10 kHz to 65 kHz with minimal attenuation) in applications such as ultrasonic range detection, condition monitoring, fault detection, level sensing and position sensing.

Knowles says the sensor’s miniaturized surface mountable package design makes it appropriate for use in most finished goods and industrial products.