Process and device for the evaluation of photometric...

Details Process and device for the evaluation of photometric... Process and device for the evaluation of photometric...

G - Physics

01

N

73/58

G01N 21/00 (2006.01) G01N 21/59 (2006.01) G01N 27/447 (2006.01) G01N 30/95 (2006.01) G01N 30/84 (2006.01)

Patent

CA 1110465

ABSTRACT OF THE DISCLOSURE A method for the rapid and direct evaluation of photometric measurement values comprises (a) successively and cyclically passing all measure- ment positions into the field of view of a photometric detec- tor in such a manner that after the last measurement position is examined, the first measurement position is again examined, wherein this scanning of the measurement positions is con- tinuously repeated with high speed during the whole evaluation period; and (b) feeding the voltage thereby produced in the photo- metric measurement cell as the deflection input of an oscil- lograph whose sweep frequency is coordinated with the fre- quency at which the measurement positions pass by the detect- or. A corresponding device which readily enables performance of this method is also provided.

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