Browse Prior Art Database

Disk PZT Sensor

IP.com Disclosure Number: IPCOM000048570D
Original Publication Date: 1982-Feb-01
Included in the Prior Art Database: 2005-Feb-08
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Klauser, HE: AUTHOR

Abstract

The thermal response of disk PZT+ (lead zirconium titanate) sensors is significantly improved by employing more absorbing and less reflective electrodes.

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Disk PZT Sensor

The thermal response of disk PZT+ (lead zirconium titanate) sensors is significantly improved by employing more absorbing and less reflective electrodes.

In one particular application, the nickel plate electrode of a commercially available PZT disk sensor is stripped by etching or the like and replaced by a deposited carbon or graphite one, such as a deposition of colloidal graphite, for example, ELECTRODAG** 154.

Alternatively, the metal electrode may be overcoated with a colloidal deposition of carbon or graphite.

Another alternative is to form the higher absorbing electrodes from metal that deposits in a highly dispersed form, such as powder or metal whiskers, i.e., dendrites.

PZT sensors with such more absorbing electrodes are particularly useful for measuring high power laser beams of large cross section, e.g., 10 mm. * Trademark of Vernitron Corp. ** Trademark of Acheson Industries, Inc.

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