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The detecting range of a photoelectric sensor is its "field of view", or the maximum distance from which the sensor can retrieve information, minus the minimum distance. A minimum detectable object is the smallest object the sensor can detect. More accurate sensors can often have minimum detectable objects of minuscule size.
A rear reflector on a bicycle Reflecting device on horse. A safety reflector is a retroreflector intended for pedestrians, runners, motorized and non-motorized vehicles. A safety reflector is similar to reflective stripes that can be found on safety vests and clothing worn by road workers and rescue workers. They are sometimes erroneously ...
An optical sensor converts light rays into electronic signals. It measures the physical quantity of light and then translates it into a form readable by an instrument. An optical sensor is generally part of a larger system that integrates a source of light, a measuring device, and the optical sensor. This is often connected to an electrical ...
Depending on the difference in the refractive index between prism material and sample the light is partly transmitted or totally reflected. The critical angle of total reflection is determined by measuring the reflected light intensity as a function of the incident angle. Automatic refractometers automatically measure the refractive index of a ...
Noise spectrum: The intrinsic noise voltage or current as a function of frequency. This can be represented in the form of a noise spectral density. Nonlinearity: The RF-output is limited by the nonlinearity of the photodetector [10] Spectral response: The response of a photodetector as a function of photon frequency.
(Reuters) -A state funeral for Jimmy Carter, the former U.S. president who died on Sunday at the age of 100, will be held at the Washington National Cathedral on Jan. 9, according to the U.S. Army ...
Sgt. Robert Haugh: That basement window … had an alarm sensor that was removed from the window and put together on the windowsill. So, if the window was to open, it would appear, you know, to ...
The family’s attorney, Sara Azari, said in a statement Wednesday that the concerned mother turned over “the alleged information to law enforcement immediately upon receipt.”