Pyrometer electromagnetic radiation measuring device

Details Pyrometer electromagnetic radiation measuring device Pyrometer electromagnetic radiation measuring device

1995-10-23

1997-06-17

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250351, 374126, 374129, G01J 506

Patent

active

056400152

ABSTRACT:
A pyrometer for measuring the electromagnetic radiation emitted by an object comprises a first detector to which the radiation is delivered through an optical system as well as a second detector to which the radiation emanating from a reference element is delivered through the same optical system. The temperature of the reference element is monitored and a rotary optical modulator periodically enables and disables the delivery of radiation to the detectors. The output signals from the two detectors are processed to determine the difference therebetween. The sensed temperature of the reference element is taken into account as a part of determining the difference between the two detector output signals. In this way it is possible for the characteristic radiation of the optical system largely to be suppressed. The optical modulator comprises a semi-circular disk having a polyethylene terephthalate substrate coated on each side with metal. The disk is rotated through 180.degree. increments by a stepping motor such that, in one angular position, the disk permits reception by the two detectors of radiation from the optical system and, in the other angular position, the disk prevents reception by the detectors of radiation from the optical system.

REFERENCES:
patent: 2920485 (1960-01-01), Derganc
patent: 4831258 (1989-05-01), Paulk et al.
patent: 4883364 (1989-11-01), Astheimer
patent: 5046858 (1991-09-01), Tucker

Affiliated with

Also associated with

Rating

Pyrometer electromagnetic radiation measuring device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pyrometer electromagnetic radiation measuring device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pyrometer electromagnetic radiation measuring device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2159825