Patent · US Expired

Light and weather resistance sensing system with a sensed signal transmission channel

US4618776A · kind A · utility

7Cited by

4References

4Claims

0Family size

Assignee

W. C. Heraeus GmbH · DE

Inventors

Walter Sturm · Hearst, CA
Helmut Becker · Limeshain, DE
Jurgen Witt · Großkrotzenburg, DE
Werner Fritz · Steinau an der Straße, DE
Ursula Eysholdt · Hockenheim, DE

Key dates

Filing date	Mar 9, 1984
Grant date	Oct 21, 1986
Priority date	—
Expiry date	Mar 9, 2004

Classification

Technology area (CPC G)Physics
CPC primaryG01N17/004
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A light and weather resistance testing apparatus (9) is provided with a sensor (1) located in the plane of the testing samples (14). The sensor (1) uses a transmitter (4) for wireless transmission of signals representing radiation received to an antenna (3) disposed on the wall (8) of the apparatus housing. The sensor (1) has multiple receptor cells (6) for various spectral ranges. The sensor (1) is powered by solar cells (7) located on the sensor housing. A plotter and display unit (13) can be connected to the apparatus for read-out of irradiance and irradiation. The wireless transmission of data from sensors to the display unit permits continuous measurement during rotation of samples and sensor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.