Polarimeter calibration method and apparatus

Details Polarimeter calibration method and apparatus Polarimeter calibration method and apparatus

1992-10-09

1994-05-31

Fields, Carolyn E.

Radiant energy

Calibration or standardization methods

250341, 250343, 356367, G01N 2121

Patent

active

053171500

ABSTRACT:
A method of calibrating polarimeter to work at an unknown wavelength comprising calibrating the polarimeter at a standard wavelength, using the calibrated polarimeter to measure a sample, measuring the same sample at the unknown wavelength and setting the polarimeter to give the same measurement at the said unknown wavelength as at the known wavelength. The method is particularly applicable to be calibration of a saccharimeter to work at an unknown wavelength in the near infra-red for the measurement of dark sugar samples. The invention is also a polarimeter or saccharimeter for carrying out the method.

REFERENCES:
patent: 4467204 (1984-08-01), Kysilka et al.
Galanov et al., "Infrared Polarimeters and Questions Relating to Contactless Measurement of Free-Carrier Concentrations in Semiconductors", Ind. Lab. (USA), 42(10), Oct. 1976, pp. 1530-1533.

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