Arrangement for determining the distance of objects

Details Arrangement for determining the distance of objects Arrangement for determining the distance of objects

1997-08-21

1999-08-31

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Receivers

381191, H04R 1900

Patent

active

059462736

ABSTRACT:
An arrangement for determining the distance of objects has a number of electrostatic ultrasonic transducers which are formed from superposed layers. Fixed electrodes for the transducers and conductive tracks connected to them are formed in a first structured metal layer. The other layers are an insulation layer and a full-surface second metal layer on the insulation layer which provides counterelectrodes for the electrodes provided by the first metal layer.

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patent: 5619476 (1997-04-01), Haller et al.
patent: 5629690 (1997-05-01), Knoll

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