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2. Proximity sensor - Wikipedia

   en.wikipedia.org/wiki/Proximity_sensor

   A proximity sensor is a sensor able to detect the presence of nearby objects without any physical contact. A proximity sensor often emits an electromagnetic field or a beam of electromagnetic radiation ( infrared, for instance), and looks for changes in the field or return signal. The object being sensed is often referred to as the proximity ...

3. List of digital cameras with CCD sensors - Wikipedia

   en.wikipedia.org/wiki/List_of_digital_cameras...

   Larger CCD sensors. Panasonic Lumix LC1. The following digicams include a -inch CCD sensor, a fixed lens with a maximum aperture of f/ 2.4 or wider, and SD or CompactFlash (CF) memory card slots. However, none of them support SDHC / SDXC memory cards or AA / AAA batteries .

4. Hall effect sensor - Wikipedia

   en.wikipedia.org/wiki/Hall_effect_sensor

   A Hall effect sensor (also known as a Hall sensor or Hall probe) is any sensor incorporating one or more Hall elements, each of which produces a voltage proportional to one axial component of the magnetic field vector B using the Hall effect (named for physicist Edwin Hall ). Hall sensors are used for proximity sensing, positioning, speed ...

5. Resistance thermometer - Wikipedia

   en.wikipedia.org/wiki/Resistance_thermometer

   Resistance thermometer. Resistance thermometers, also called resistance temperature detectors ( RTDs ), are sensors used to measure temperature. Many RTD elements consist of a length of fine wire wrapped around a heat-resistant ceramic or glass core but other constructions are also used. The RTD wire is a pure material, typically platinum (Pt ...

6. California city rolls out all-electric police fleet, first in US

   www.aol.com/finance/california-city-rolls...

   The all-electric fleet has been in the works for quite some time. South Pasadena conducted research for several years before getting the go-head from the city council to pursue the initiative, the ...

7. Hydrogen sensor - Wikipedia

   en.wikipedia.org/wiki/Hydrogen_sensor

   A hydrogen sensor is a gas detector that detects the presence of hydrogen. They contain micro-fabricated point-contact hydrogen sensors and are used to locate hydrogen leaks. They are considered low-cost, compact, durable, and easy to maintain as compared to conventional gas detecting instruments. [1]

8. Time-domain reflectometer - Wikipedia

   en.wikipedia.org/wiki/Time-domain_reflectometer

   Time-domain reflectometer for cable fault detection. A time-domain reflectometer ( TDR) is an electronic instrument used to determine the characteristics of electrical lines by observing reflected pulses . It can be used to characterize and locate faults in metallic cables (for example, twisted pair wire or coaxial cable ), [1] and to locate ...

9. Odin (firmware flashing software) - Wikipedia

   en.wikipedia.org/wiki/Odin_(firmware_flashing...

   Odin is a utility software program developed and used by Samsung internally which is used to communicate with Samsung devices in Odin mode (also called download mode ). It can be used to flash a custom recovery firmware image (as opposed to the stock recovery firmware image) to a Samsung Android device. Odin is also used for unbricking certain ...