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 The
evaluation of magnetized, demagnetized, or magnetism-reduced
products greatly affects the quality. The characteristics of
magnets themselves should be considered carefully at the
design stage, and the characteristics of the products
containing the magnets must also be evaluated in terms of
the influence of leakage magnetism on the ambient
environment. Magnetic instrumentation and measurement are
becoming increasingly important in the production of
products containing magnets. |
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| Ｑ: What is a Gauss
Meter? |
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 This
is the starting point of magnetic instrumentation using the
Hall effect. The GM Series was the pioneering production
success in Japan and marked the start of electromagnetic
products. The GM Series offers a wide range of products for
various measurement applications, as a variety of sensors
can be combined flexibly. ＧＭ calculates and displays the
flux density of an element per unit area as an average
value. Depending on the sensor size, the value differs even
when the same point is measured. However, this is not an
error but attributable to dependency on the sensor size
(measuring sensitivity area). Choose an appropriate model
from the GM Series ranging from the handheld type to the
desktop type and from an ultra-low magnetic field to 4T. |
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| Ｑ: What is a Flux
Meter? (FM Series) |
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 A
flux meter is used in combination with a search coil to
measure and evaluate the flux of a magnetized magnet. A
multi-pole magnetized flux is measured with high precision.
This device has various functions, such as an N/S peak value
measuring function, a comparator output function for lines,
a communication function for exporting data to a PC, and
connectors for external control. The meter works as follows:
a voltage is induced by the search coil in proportion to the
flux, is stored in a capacitor, is processed in an
integrating circuit, and then is displayed. The latest model
features a V/F conversion circuit (converting voltage
fluctuations into frequencies) to eliminate drift for higher
performance. |
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Copyright © 2004,XinChang Magnet Ind.Co.,Ltd.,All Rights Reserved.
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