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Temperature Compensated Delay Line

IP.com Disclosure Number: IPCOM000096744D
Original Publication Date: 1963-Oct-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 23K

Publishing Venue

IBM

Related People

Hayes, LP: AUTHOR

Abstract

This is for compensating for changes in delay time of a torsional delay line due to temperature variations and the resultant effect on elasticity and wave velocity.

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Temperature Compensated Delay Line

This is for compensating for changes in delay time of a torsional delay line due to temperature variations and the resultant effect on elasticity and wave velocity.

Delay line 10 utilizes a transducer 11 at one end to receive a pulse from 10 and transform the same into an electrical signal. Transducer 11 is movably mounted on line 10. Cam follower 12 is fixed to the transducer block.

A stationary support 13 has connected to each end a bi-metallic strip 14 and strip 15. Connected to the strips is cam 16 on which is formed a cam surface 17 having a curvature which represents the temperature coefficient of elasticity of line 10.

As the temperature varies, cam 16 moves and adjusts transducer 11 through cam follower 12. Cam surface 17, having a temperature coefficient curve, moves transducer 11 as the temperature varies and changes the physical length of the delay line 10. This nullifies changes in time delay due to changes in velocity of propagation.

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