Multi-channel spectro-photometers

Details Multi-channel spectro-photometers Multi-channel spectro-photometers

1997-10-10

1999-07-06

Hantis, K P

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

G01J 342

Patent

active

059203897

ABSTRACT:
A multi-channel type spectro-photometer not only has a light source, a sample cell to which light from the light source is directed, a spectrometer to which light transmitting through the sample cell is directed, and an array of photo-diodes to which dispersed light from the spectrometer is directed, but also allows the user to specify a range of wavelength within which measurements are to be taken. An optimum charge-accumulating time during which charge is to be accumulated on the photo-diodes array is automatically set according to the range specified by the user. Alternatively, quantity of light received by the photo-diode array may be detected and an optimum charge-accumulating time may be automatically set according to the measured light intensity on the photo-diode array. Dark current and background measurements are taken before a sample is injected into the sample cell and transmitted light therethrough is measured to obtain the absorption spectrum of the sample.

REFERENCES:
patent: 4158505 (1979-06-01), Mathisen et al.
patent: 4758085 (1988-07-01), Leqime et al.
patent: 4958928 (1990-09-01), Kuderer
patent: 5517302 (1996-05-01), Stearns et al.
patent: 5565983 (1996-10-01), Barnard

Affiliated with

Also associated with

Rating

Multi-channel spectro-photometers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-channel spectro-photometers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-channel spectro-photometers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-903303