Recording apparatus for a spectrophotometer

Details Recording apparatus for a spectrophotometer Recording apparatus for a spectrophotometer

1983-11-17

1986-01-28

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

346 33A, 346 34, 346 62, G01J 342

Patent

active

045667934

ABSTRACT:
A spectrophotometer to draw time changes of a plurality of spectrophotometric data by one recording pen. The spectrophotometer has a plurality of sample cells for accommodating samples to be optically measured and for enabling repeated optical measurement of each sample in a certain time interval, a timer for providing a time when the sample is measured, a first memory section for respectively memorizing each pair of the repetitive measured data and time, a second memory section for memorizing the data indicative of the source point of the movement of the pen and the data representative of the destination point among each of the pairs memorized in the first memory section, an arithmetic logical unit to calculate the difference between the destination point data and source point data and to provide an output of the calculation, a pen-controller for moving the pen in response to the output of the arithmetic logical unit, and a sheet-controller for receiving the output of the arithmetic logical unit and for moving a recording sheet synchronously with the movement of the pen by the pen-controller.

REFERENCES:
patent: 3344702 (1967-10-01), Wood et al.
patent: 3840878 (1974-10-01), Houston et al.
patent: 3949408 (1976-04-01), Mason et al.
patent: 4074273 (1978-02-01), Dupree et al.
Bulletin 7255-"Beckman ACTA M UV/VIS-NIR Spectrophotometers", 1974.

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