摘要:
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.
摘要:
An apparatus and method is provided for detecting a temperature range or a temperature of a railroad train wheel or bearing wherein infrared radiation radiating from the wheel or bearing of a train traversing a railroad track is indicative of a temperature range of the wheel or bearing. The apparatus comprises a sensor for sensing infrared radiation radiating from the wheel or bearing within two or more infrared wavelength ranges. The sensor generates signals indicative of the sensed infrared radiation in each of the wavelength ranges. A processor determines a temperature range or a temperature of the wheel or bearing from the generated signals. The method detects a temperature range of a railroad train wheel or bearing wherein infrared radiation radiating from the wheel or bearing of a train traversing a railroad track is indicative of the temperature range of the wheel or bearing. The method includes sensing infrared radiation radiating from the wheel or bearing within two or more wavelength ranges of the infrared radiation. Signals are generated that are indicative of the sensed infrared radiation in each infrared wavelength range. A temperature range or a temperature of the wheel or bearing is determined from the generated signals.
摘要:
An apparatus for detecting a temperature of a railroad train wheel or bearing comprises a lens positioned in close proximity to a railroad track such that infrared radiation radiating from the wheel or bearing of a train traversing the track is collected by the lens and directed toward a focal point of the lens. The collected radiation is indicative of the temperature of the wheel or bearing. A fiber optic cable has a first end associated with the lens for receiving the collected radiation and a second end. The focal point of the lens is at the first end of the fiber optic cable. The fiber optic cable transmits the received radiation from the first end to the second end. A detector is positioned at a remote distance from the railroad track and is associated with the second end of the fiber optic cable for detecting the transmitted radiation. The detected infrared radiation is indicative of the temperature of the wheel or bearing. The invention further comprises a method for detecting a temperature of the railroad train wheel or bearing, the apparatus comprising the steps of collecting in close proximity to a railroad track infrared radiation radiating from the wheel or bearing of a train traversing the track wherein the radiation is indicative of the temperature of the wheel or bearing. The invention further comprises the steps of transmitting the collected radiation to a location remote from the railroad track, detecting the transmitted radiation at the remote location, wherein the detected radiation is indicative of the temperature of the wheel or bearing, and generating an output signal that is indicative of the temperature of the wheel or bearing.