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2. Capacitive sensing - Wikipedia

   en.wikipedia.org/wiki/Capacitive_sensing

   Capacitive sensing. In electrical engineering, capacitive sensing (sometimes capacitance sensing) is a technology, based on capacitive coupling, that can detect and measure anything that is conductive or has a dielectric constant different from air. Many types of sensors use capacitive sensing, including sensors to detect and measure proximity ...

3. Level sensor - Wikipedia

   en.wikipedia.org/wiki/Level_sensor

   Level sensor. Level sensors detect the level of liquids and other fluids and fluidized solids, including slurries, granular materials, and powders that exhibit an upper free surface. Substances that flow become essentially horizontal in their containers (or other physical boundaries) because of gravity whereas most bulk solids pile at an angle ...

4. Capacitor - Wikipedia

   en.wikipedia.org/wiki/Capacitor

   Some fingerprint sensors use capacitors. Additionally, a user can adjust the pitch of a theremin musical instrument by moving their hand since this changes the effective capacitance between the user's hand and the antenna. Changing the effective area of the plates Capacitive touch switches are now [when?] used on many consumer electronic products.

5. Touch switch - Wikipedia

   en.wikipedia.org/wiki/Touch_switch

   Touch switch. A touch switch is a type of switch that only has to be touched by an object to operate. It is used in many lamps and wall switches that have a metal exterior as well as on public computer terminals. A touchscreen includes an array of touch switches on a display. A touch switch is the simplest kind of tactile sensor.

6. Load cell - Wikipedia

   en.wikipedia.org/wiki/Load_cell

   The digital capacitive technology is based on a non-contacting ceramic sensor mounted inside the load cell body. As the load cell contains no moving parts and the ceramic sensor is not in contact with the load cell body, the load cell tolerates very high overloads (up to 1000%), sideloads, torsion, and stray welding voltages. [3]

7. Capacitive displacement sensor - Wikipedia

   en.wikipedia.org/wiki/Capacitive_displacement_sensor

   Capacitive displacement sensors are used in a wide variety of applications including semiconductor processing, assembly of precision equipment such as disk drives, precision thickness measurements, machine tool metrology and assembly line testing. These types of sensors can be found in machining and manufacturing facilities around the world.