High Sensitivity
The system incorporates a pair of parallel circuits tuned at or near resonance with a radio-frequency voltage source. A capacitive transducer is inductively coupled to one of the circuits so that forces acting on the transducer are transformed into variations in the tuned circuit.

As tuning moves above or below resonance, output can be measured as a positive or negative voltage. The signal, typically measured in hundreds of millivolts, can be used as is or amplified.
Coaxial cable allows linking of the transducer to a detection circuit across a relatively long distance without degrading the system’s performance.

An Improved Beam

The transducer beam is designed to be very compliant, allowing it to deliver fast data outputs. It is also more durable than standard strain gauge beams, resulting in a longer lifespan and lower maintenance for the transducer.

A Versatile Design

The device can be fashioned as a force or load cell, linear detector, rotational detector, or vibration sensor, or as a non-contact current detector for small, direct current circuits. Any of these variations can be produced with only minor changes in the machining of the transducer head.

Next Steps

The transducer’s advantages have been demonstrated in several years of laboratory use. Mass production could begin immediately after machining setup and calibration of RF signals.

Commercialization

High demand for the transducer can be anticipated from markets such as research universities, pharmaceutical companies, and manufacturers.

File Number: 274 

Web site: http://www.uvminnovations.com/instrumentation.html

Other Information:

Patent pending. Exclusive rights available.