METHOD AND APPARATUS FOR TIME-PHASED CONSTANT IR ENERGY DELTA SOURCE
First Claim
1. Apparatus for calibrating a railway infrared hot box detector by delivering a desired radiant energy delta to the hot box detector comprising:
- a radiant energy source adapted to be positioned adjacent to the hot box detector being calibrated for emitting radiant energy along a path toward the hot box detector;
a lens located between the hot box detector and the radiant energy source for diffusing the radiant energy from the radiant energy source; and
a processor for operating the energy source to achieve the desired radiant energy delta.
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Accused Products
Abstract
The present invention comprises apparatus for calibrating a railway infrared hot box or hot wheel detector by delivering a desired radiant energy delta to the hot box detector. The apparatus comprises a solid state radiant energy source adapted to be positioned adjacent to the hot box detector being calibrated for emitting radiant energy along a path toward the hot box detector and a processor to cycle the solid state radiant energy source at a desired frequency and intensity between an on state and an off state to achieve the desired radiant energy delta.
12 Citations
38 Claims
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1. Apparatus for calibrating a railway infrared hot box detector by delivering a desired radiant energy delta to the hot box detector comprising:
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a radiant energy source adapted to be positioned adjacent to the hot box detector being calibrated for emitting radiant energy along a path toward the hot box detector;
a lens located between the hot box detector and the radiant energy source for diffusing the radiant energy from the radiant energy source; and
a processor for operating the energy source to achieve the desired radiant energy delta. - View Dependent Claims (2, 3, 4, 5, 6, 36, 37, 38)
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7. Apparatus for calibrating a railway infrared hot box detector by delivering a desired radiant energy delta to the hot box detector comprising:
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a solid state radiant energy source for emitting radiant energy along a path toward the hot box detector adapted to be positioned adjacent to the hot box detector being calibrated;
a shutter device positioned between the source of radiant energy and the hot box detector along the path, with the shutter device being selectively operable between a first mode operation in which the shutter device permits radiant energy to be transmitted from the source to the hot box detector along the path, and a second mode of operation in which the shutter blocks the transmission of radiant energy from the source to the detector;
a processor for operating the energy source at a desired temperature setpoint. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. Apparatus for calibrating a railway infrared hot box detector by delivering a desired radiant energy delta to the hot box detector comprising:
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a radiant energy source adapted to be positioned adjacent to the hot box detector being calibrated for emitting radiant energy along a path toward the hot box detector;
a processor to cycle the solid state radiant energy source at a desired frequency and intensity between an on state and an off state to achieve the desired radiant energy delta. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A method of calibrating a railway infrared hot box detector by delivering a controlled level of radiant energy to the detector, the method comprising:
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transmitting radiant energy from a radiant energy source when at a high temperature to the hot box detector for a first period of time;
transmitting radiant energy from the radiant energy source when not at a high temperature to the hot box detector for a second period of time;
controlling the operation of the radiant energy source so as to emit radiant energy at a desired level in excess of that of the radiant energy transmitted during the second period of time to achieve a desired radiant energy delta for calibrating the hot box detector. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. Apparatus for calibrating a railway infrared hot box detector by delivering a desired radiant energy delta to the hot box detector comprising:
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a radiant energy source for generating radiant energy along a path toward the hot box detector adapted to be positioned adjacent to a hot box detector to be calibrated;
the radiant energy source being selectively operable between a first mode and a second mode, in the first mode the energy source is heated to a relatively high temperature and generates a high level of radiant energy for transmission to the hot box detector, and in a second mode the energy source is not heated to the relatively high temperature and generates a low level of radiant energy; and
a processor for controlling the operation of the radiant energy source so as to generate a desired radiant energy delta between said first and second modes of the radiant energy source for calibrating the hot box detector. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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Specification