Optical wavelength modulated long-path gas monitoring apparatus

Details Optical wavelength modulated long-path gas monitoring apparatus Optical wavelength modulated long-path gas monitoring apparatus

1993-03-31

1994-08-16

McGraw, Vincent P.

Optics: measuring and testing

By shade or color

With color transmitting filter

25033906, 356437, G01N 2131, G01N 2135

Patent

active

053391551

ABSTRACT:
Optical long-path gas monitoring apparatus (2) comprising means (4) for providing a radiation beam, a modulator (10) for modulating the wavelength of the radiation beam such as to produce amplitude modulation of the beam in the presence of the gas being monitored, a radiation detector (12) for conversion of the radiation beam into an electrical signal, and a signal processor (PSD 1,PSD 2) for demodulating the electrical signal to provide a signal dependent upon the gas.

REFERENCES:
patent: 4090792 (1978-05-01), Bunge
patent: 5015099 (1991-05-01), Nagai et al.
patent: 5076699 (1991-12-01), Ryan et al.

Affiliated with

Also associated with

Rating

Optical wavelength modulated long-path gas monitoring apparatus 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 wavelength modulated long-path gas monitoring apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical wavelength modulated long-path gas monitoring apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-956894