A high-frequency magnetic field is generated by coil L in the oscillation circuit. When a target approaches the magnetic field, an induction current (eddy current) flows in the target due to electromagnetic induction. As the target approaches the sensor, the induction current flow increases, which...
How does an optical spectrometer work? The Spectroscopy Process A transmission optical spectrometer is used to measure the absorption (or reflectance/transmission/emission) of a sample in the near UV throughout the visible region of the spectrum. The spectrometer consists of a light source, a dispe...
A sensor is a detection device that can sense the measured information, and can transform the sensed information into electrical signals or other required forms of information output according to certain rules, so as to meet the requirements of information transmission, processing, storage and display...
The signal is in most cases electrical but can also be optical. Definition of a Pressure Sensor: Therefore, a pressure sensor is an instrument consisting of a pressure sensitive element to determine the actual pressure applied to the sensor (using different working principles) and some components ...
Apassive sensor, on the other hand, doesn't require an external power source to detect environmental input. It relies on the environment itself for its power, using sources such as light or thermal energy. A good example is the mercury-based glass thermometer. The mercury expands and contracts...
What is a wireless sensor network (WSN)? What is an optical mouse? Related Terms What is a conductor? A conductor, or electrical conductor, is a substance or material that allows electricity to flow through it. See complete definition What is a semiconductor, and what is it used for? A...
optical modulators), one can build atom interferometers using matter “reflected” off of pulses of light. Such atom interferometers have the benefit that the atoms themselves have mass, making them sensitive to both gravity and general acceleration. Accordingly, there is an emerging area of work ...
Manual – OSSD’s go high when the beams are free and then a reset button is pressed. It is important that an automated restart can only be used in specific case when it is not possible to stand behind the light curtain without being detected (e.g. small press with arm only access),...
A Diode is an electronic component that allows current to flow in one direction only. It is a device that consists of a p-n junction. They are used most commonly to convert AC to DC, because they pass the positive part of the wave, and block the negative part of the AC signal, or...
In more advanced use cases, AI-assisted labeling tools based on optical flow, video object tracking, or segmentation are becoming more essential to speed up annotation. SuperAnnotate's video annotation platform is made to speed up the annotation of all these use cases. Additionally, we created ...