Cold junction compensation apparatus
US4804272A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1988 |
| Grant date | Feb 14, 1989 |
| Priority date | — |
| Expiry date | Apr 13, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K7/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cold junction compensation apparatus utilizes a block of thermally conductive material, such as copper, having a mounting flange extending radially outwardly which is attached to a terminal strip by a machine screw to maintain the screw temperature substantially at the temperature of the block of thermally conductive material. The temperature of the block is sensed by means of a temperature sensor inserted into a hole extending through the block. The sensor is supported on a printed circuit board and is inserted through the hole in the block during assembly of an apparatus using the cold junction temperature compensation. The block is covered by an exterior insulating sleeve to prevent electrical shorts and rapid temperature changes in the block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.