Sensor assembly with cooled sensor

US5376794A · kind A · utility

Assignee

• Bodenseewerk Gerätetechnik GmbH · DE

Inventors

• Michael Gross · Salem, DE
• Bernd Uwira · Konstanz, DE

Key dates

• Filing date: Dec 21, 1993
• Grant date: Dec 27, 1994
• Expiry date: Dec 21, 2013

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10F77/60
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a sensor assembly, a cooled sensor is arranged in the vacuum chamber of a Dewar vessel. The Dewar vessel has an inner housing element and an outer housing element. Both housing elements are made of metal and are pot-shaped. The outer housing element extends around the inner housing element. The two housing elements define the vacuum chamber of the Dewar vessel. The inner housing element carries the sensor on its end face within the vacuum chamber. A cooler is arranged in the cavity formed by the inner housing element. A tubular support body made of multi-layer glass-ceramic material is arranged in the vacuum chamber and surrounds the inner housing element. The support body supports the inner housing element through radial projections and contains conductors for connecting the sensor.