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Browse Prior Art Database

Gapmeter

IP.com Disclosure Number: IPCOM000089364D
Original Publication Date: 1977-Oct-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Milburn, LH: AUTHOR [+2]

Abstract

An instrument is shown which permits measuring and adjusting a critical gap without disturbing other critical measurements.

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Gapmeter

An instrument is shown which permits measuring and adjusting a critical gap without disturbing other critical measurements.

The instrument comprises a transducer 10, an excitation signal source 12 and a readout device 14. The transducer is a double restrained beam supported by hanger assembly 16 so that it can be placed in the gap between a drum and another component which is to be accurately positioned relative to the drum. When the component is in the proper range of proximity to the drum, it contacts and deflects the beam. The resistance of the strain gauges attached to the beam changes as the beam is deflected. The excitation signal source produces a current flow through the strain gauges such that the change of resistance can be remotely measured with the readout device 14.

Thus, it can be seen that use of this instrument reduces the time required to properly set the drum gap. It also allows the gap to be checked without removing other components of the machine, thereby altering other sensitive adjustments.

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