Optical power meter

Details Optical power meter Optical power meter

1997-02-13

1998-05-05

Rosenberger, Richard A.

Optics: measuring and testing

Photometers

Photoelectric

250214AG, 356226, G01J 144

Patent

active

057483027

ABSTRACT:
An optical power meter which is capable of performing power range switchover operations in short periods of time and are capable of performing optical power measurements over a wide range in short periods of time. The invention comprises a photodiode 101 which outputs an electrical current proportional to the input optical power, an I/V amp 102 which converts this electrical current into voltage, a variable-gain amp 103 for amplifying this voltage, an A/D converter 107 which converts the output voltage from this variable-gain amp into a digital signal, a CPU 110 which processes the digital signal outputted from this A/D converter 107, and saturation detecting comparators 108 and 109 which detect saturation of the I/V amp and the variable-gain amp. The CPU 110 switches the gains of the I/V amp and the variable-gain amp based on the output signals from the saturation detecting comparators.

REFERENCES:
patent: 4673807 (1987-06-01), Kobayashi et al.

Affiliated with

Also associated with

Rating

Optical power meter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical power meter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical power meter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-60283