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2. Hall effect sensor - Wikipedia

   en.wikipedia.org/wiki/Hall_effect_sensor

   Hall effect devices produce a very low signal level and thus require amplification. The vacuum tube amplifier technology available in the first half of the 20th century was too large, expensive, and power-consuming for everyday Hall effect sensor applications, which were limited to laboratory instruments.

3. Hall effect - Wikipedia

   en.wikipedia.org/wiki/Hall_effect

   The term ordinary Hall effect can be used to distinguish the effect described in the introduction from a related effect which occurs across a void or hole in a semiconductor or metal plate when current is injected via contacts that lie on the boundary or edge of the void. The charge then flows outside the void, within the metal or semiconductor ...

4. Current sensing - Wikipedia

   en.wikipedia.org/wiki/Current_sensing

   Fluxgate sensors or saturable inductor current sensors work on the same measurement principle as Hall-effect-based current sensors: the magnetic field created by the primary current to be measured is detected by a specific sensing element. The design of the saturable inductor current sensor is similar to that of a closed-loop Hall-effect ...

5. Planar Hall sensor - Wikipedia

   en.wikipedia.org/wiki/Planar_Hall_sensor

   The planar Hall sensor is a type of magnetic sensor based on the planar Hall effect of ferromagnetic materials. [1] [2] It measures the change in anisotropic magnetoresistance caused by an external magnetic field in the Hall geometry. As opposed to an ordinary Hall sensor, which measures field components perpendicular to the sensor plane, the ...

6. Judges are pausing Trump's policy changes. But for how long?

   www.aol.com/news/judges-pausing-trumps-policy...

   Boardman's order "will remain in effect until the lawsuit is resolved or the injunction is overturned by a higher court," lawyers Nicole Fink and Philip Sholts from Ogletree Deakins’ Immigration ...

7. Kate Middleton's frustration with being a fashion trendsetter ...

   www.aol.com/kate-middletons-frustration-being...

   She pointed out that the "Kate Effect" has led to over $1 billion in sales in British fashion, boosting the country’s economy. It also celebrates local designers. It also celebrates local designers.