Method and an automatic device for analyzing variations in the t

Details Method and an automatic device for analyzing variations in the t Method and an automatic device for analyzing variations in the t

1977-05-24

1978-08-22

Dahl, Lawrence J.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

73 641, 250573, 356 39, 356201, G01N 2128

Patent

active

041091590

ABSTRACT:
The method consists in generating an electrical signal B which is representative of the time-dependent variations in transparency, in generating a pulse at the initial instant of measurement, in carrying out an initial measurement of the slope of the curve at the beginning of the portion which has a steep slope, in comparing at predetermined instants the measured value of the initial slope with the slope of the curve which is representative of the signal B at these instants, in generating a second pulse when the measured slope becomes significantly different from the initial slope, and in measuring the time interval which elapses between the first and second pulses.

REFERENCES:
patent: 3606539 (1971-09-01), Polanyi et al.
patent: 3625621 (1971-12-01), Fields
patent: 3923397 (1975-12-01), Shuck
Korn & Korn, Electronic Analog Computers, McGraw-Hill, 2nd Ed., p. 13; 1956.

Affiliated with

Also associated with

Rating

Method and an automatic device for analyzing variations in the t does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and an automatic device for analyzing variations in the t, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and an automatic device for analyzing variations in the t will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1560734