NVE Analog Sensor Evaluation Kit
Eden Prairie, Minnesota, June 27th, 2012 - NVE Corporation, who develops and sells devices using spintronics, a nanotechnology they helped pioneer, releases a press release today for the month of July.
Analog Sensor Evaluation Kit
One of NVE’s most popular evaluation kits is the Analog Sensor Evaluation Kit.
The kit includes NVE's most sensitive production sensor (the AAH002) and several other analog sensors, plus circuit boards for easy connections and an assortment of magnets:
Magnetic Field Versus Magnet Distance
A common question to NVE's sensor applications desk is magnetic field strength versus distance from a permanent magnet.
We know that as a magnet moves farther from a sensor, the output decreases. More precisely, close to the magnet face, the magnet is like a monopole, so the field drops off with the square of the distance. Farther from the face, the field decreases with the cube of the distance.
It’s difficult to predict the exact relationship theoretically. NVE offers a flux density calculation spreadsheet for calculating the magnetic field intensity from disk or bar magnets at various distances.
Many customers select sensors, magnets, and spacing experimentally. The AG001-01 Analog Sensor Evaluation Kit (see story above) is popular for those experiments.
With a high-sensitivity sensor, the field from a 0.312" diameter ceramic magnet can be reliably detected to about 1.5" away, but most practical applications use spacings of a fraction of an inch. High sensitivity sensors provide more signal.
For a demonstration of field strength versus distance, click through to see their new technical video.
About NVE Corporation
NVE Corporation develops and sells devices that use spintronics, a nanotechnology that relies on electron spin rather than electron charge to acquire, store and transmit information. The company make spintronics practical by manufacturing high-performance products including sensors and couplers that are used to acquire and transmit data in industrial, scientific, and medical applications. NVE has also licensed its spintronic magnetoresistive random access memory technology, commonly known as MRAM.