In-situ dark current measurement for pyrometers

• Main Authors: KNOBLOCH, AARON, JAY, ANDARAWIS, EMAD, ANDARAWIS
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COLORIMETRY; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; MECHANICAL ENGINEERING; PHYSICS; RADIATION PYROMETRY; TESTING; WEAPONS

Techniques for measuring one or more operational characteristics of a target using a pyrometer are provided. In one exemplary aspect, a pyrometer is oriented relative to a target having target elements spaced apart from each other such that when the target is rotated, the pyrometer alternately i) senses the target elements for a period of time; and ii) then not sensing any target element for a period of time since no perceptible signal is received. The pyrometer generates an output signal having alternating target pulse widths and zero widths. The target and null widths are at different amplitudes. The amplitude of the null signal provides an amplitude baseline to which the target width or the amplitude of the signal can be compared so that the temperature or other operational characteristics associated with the target can be determined. 提供了一种使用高温计测量目标的一个或多个操作特性的技术。在一个示例性方面，高温计相对于具有彼此间隔开的目标元件的目标定向，使得当目标旋转时，高温计交替地i)感测目标元件一段时间；和ii)然后不感测任何目标元件一段时间，因为没有接收到可感知的信号。高温计产生具有交替的目标脉冲宽度和零位宽度的输出信号。目标和零位宽度处于不同的幅度。零位信号的幅度提供