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The technique allows non-contact measurement where the heat of the molten metal makes contact techniques and even many non-contact techniques impractical. Nucleonic level sensors are often used in mineral crushing circuits, where an increase in gamma ray detection indicates a void, compared to being filled with ore.
Capacitive displacement sensors are a kind of non-contact displacement sensor, measuring the position and change of position in capacitive materials to a high resolution. [1] They are also able to measure the thickness or density of non-conductive materials. [ 2 ]
Mutual capacitance allows multi-touch operation where multiple fingers, palms or styli can be accurately tracked at the same time. [13] Self-capacitance sensors can have the same X-Y grid as mutual capacitance sensors, but the columns and rows operate independently. With self-capacitance, current senses the capacitive load of a finger on each ...
Oil level sensor; Oil pressure sensor ... Capacitive displacement sensor; Capacitive sensing; ... Contact image sensor; Electro-optical sensor; Flame detector; Infra ...
Liquids have a higher dielectric constant than gas; when an air bubble is in a fluid-filled tube the capacitance is reduced and the output voltage rises. [3] The size of the bubble is inversely related to the measured capacitance. Table 1 shows an example of the characteristics of a particular capacitive sensor being researched. [4]
Capacitance sensors (or Dielectric sensors) use capacitance to measure the dielectric permittivity of a surrounding medium. The configuration is like the neutron probe where an access tube made of PVC is installed in the soil ; probes can also be modular (comb-like) and connected to a logger.
Gems Sensors and Controls is a global manufacturer of application engineered sensors. Founded in 1955, it makes level, pressure and flow sensors for use in a wide range of fluids across industry. Gems Sensors is a division of Fortive Corporation, a company with a presence around the world. The company provides manufacturing services in North ...
Different types of light sensors. A sensor is a device that produces an output signal for the purpose of detecting a physical phenomenon.. In the broadest definition, a sensor is a device, module, machine, or subsystem that detects events or changes in its environment and sends the information to other electronics, frequently a computer processor.