Black body TRD temperature sensor
First Claim
1. A TRD temperature sensing probe comprising:
- probe means adapted to be thermally coupled to an environment whose temperature is to be sensed, the probe means havinga luminescing means responsive to temperature in a first temperature range to luminesce with a thermally responsive time-rate-of-decay, anda thin coating of inert material on the probe means responsive to temperature in a second temperature range to emit blackbody radiation, the second temperature range being different from the first temperature range; and
an excitation source coupled to the probe for repetitively emitting excitation radiation on the luminescing means.
0 Assignments
0 Petitions
Accused Products
Abstract
A temperature sensing system has a signal means which provides a signal representative of a temperature responsive luminescence, where the luminescence has a characteristic time-rate-of-decay. A means for comparison is connected to the signal means and samples the signal during two time intervals, the first interval overlapping the second. The averages of the samples are compared to provide a difference signal representative of the difference between the two measured averages. Control means coupled to the comparison means provide an output representing the temperature as a function of the time-rate-of-decay, by adjusting the overlapping intervals so that the difference signal converges to a preselected limit.
-
Citations
11 Claims
-
1. A TRD temperature sensing probe comprising:
-
probe means adapted to be thermally coupled to an environment whose temperature is to be sensed, the probe means having a luminescing means responsive to temperature in a first temperature range to luminesce with a thermally responsive time-rate-of-decay, and a thin coating of inert material on the probe means responsive to temperature in a second temperature range to emit blackbody radiation, the second temperature range being different from the first temperature range; and an excitation source coupled to the probe for repetitively emitting excitation radiation on the luminescing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A temperature sensor comprising:
-
a fiber having a first and a second end; luminescing means in optical communication with the second end and responsive to temperature in a first temperature range to luminesce with a thermally responsive time-rate-of-decay in response to excitation radiation; and blackbody means in optical communication with the second end and responsive to temperature in a second temperature range to emit blackbody radiation, the blackbody means comprising a thin coating of inert material, the second temperature range being different from the first temperature range. - View Dependent Claims (10, 11)
-
Specification