Exergen Corporation

Gentri Controls, Inc.

Raymond C Paulk

Francesco Pompei

A non-contact infrared temperature sensing system for determining temperature values for a series of targets all having a similar emissivity value, which calculates an emissivity value for the targets based on the sensed total heat radiated from one target, an inputted temperature value for that target, and a temperature value for extraneous radiation from that target. The system then computes, for each subsequent target whose heat radiation is detected, a temperature value for each said target dependent upon the emitted component of radiation, and independent of the extraneous component of radiation from that target.

Non-contact infrared temperature sensing system

A radiation detector has a dual element sensor. One sensor element detects thermal radiation of a target at the same time the second sensor element detects thermal radiation of a reference object adjacent to the target. The dual element sensor produces a signal of the difference in the sensed radiations. A remote meter displays the thermal difference and provides an indication of sensed mass of the target relative to the mass of the reference. The display is driven by a circuit which provides a fast response of the sensed thermal difference and a slow decay of the response to provide a somewhat continuous display between targets detected in a series. Alarms may be sounded in accordance with certain readings of the display. A continuously flowing, dynamic pattern of thermal differences is detected and displayed in applications of the detector to assembly line processes.

Growing community of inventors

Hopedale, MA, United States of America

Raymond C Paulk