Method for operating optical sensors

Details Method for operating optical sensors Method for operating optical sensors

2007-05-08

2007-05-08

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

C356S625000, C702S155000

Reexamination Certificate

active

10768203

ABSTRACT:
A method for operating an optical sensor for measuring a physical quantity with a defined scale value that is subject to a calibration certification. The measurement accuracy of the quantity being measured is dependent on at least one external condition, and a given scale value is used for the measurement according to the desired measurement accuracy. The scale value is appropriately changed when the measurement accuracy changes due to a change of external condition. An optoelectronic sensor has a switching arrangement for changing the scale value. The sensor is more diversified and can cover larger measurement ranges without requiring new certifications or authorizations for the different measurement ranges.

REFERENCES:
patent: 6373579 (2002-04-01), Ober et al.
patent: 2003/0001120 (2003-01-01), Nishiyama et al.
International Recommendation, OIML R 129, “Multi-dimensional Measuring Instruments,” Organisation International de Metrologie Legale (International Organization of Legal Metrology), Edition 2000 (E), pp. 1-91.
Approvals Manual—Mass, Chapter 5, “Multiple Dimension Measuring Devices,” Measurement Canada (Mesures Canada), 7 pgs.

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