Browse Prior Art Database

Temperature Distribution Analysis and Modeling Using Liquid Crystals and Conductive Paper

IP.com Disclosure Number: IPCOM000081599D
Original Publication Date: 1974-Jul-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Baldwin, EC: AUTHOR [+2]

Abstract

This is a method for modeling the temperature distribution of a resistively heated part, as for example, a solder iron tip.

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This is the abbreviated version, containing approximately 100% of the total text.

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Temperature Distribution Analysis and Modeling Using Liquid Crystals and Conductive Paper

This is a method for modeling the temperature distribution of a resistively heated part, as for example, a solder iron tip.

The part being modeled is drawn at a convenient scale, preferably magnified to reduce errors, on a uniformly resistive material such as TELEDELTOS* paper. The resistance of the paper may be altered to reflect changes in the cross- sectional area of the part being modeled. For example, sections of the model may be removed and substitutions made with sections of higher or lower resistance, dependent upon the scale and the change in cross section. The sections can then be cemented in place with conductive paint.

Encapsulated liquid crystals of the proper temperature range are attached to the surface of the TELEDELTOS paper model. Power is applied to the TELEDELTOS paper and the temperature distribution in the model part will be clearly visible in the liquid crystals.

Alterations in the cross section of the model part may be made and he results immediately evaluated. By several iterations, a cross section of the modeled part may be altered to give the desired temperature distribution.

Alternatively, the resistive material and the encapsulated liquid crystals could be combined into one material, with the resistive material serving as the base for the liquid crystals. * Trademark of Western Union Telegraph Company.

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