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| Magnetic field sensors | | Magnetic field sensors are used for the measurement of weak magnetic fields, which are typically lower than 3 kA/m. Characteristic for those sensors is on the one hand that their output signal is to a large extent linear. On the other hand polarity of the signal depends on the magnetic field direction (see illustration). |
| The sensitivity and width of the working area is determined by an auxiliary field, which is produced by an additional auxiliary magnet.
MEAS Deutschland GmbH offers sensors with built-in magnets for standard applications.
Typical application areas for this kind of sensors are the detection and/or position recognition of permanent magnets in relatively large distances. A half-bridge sensor with integrated auxiliary magnet is available for seizing fast changes in magnetic fields. Our KMZ 20 and KMY 20 Series are based on our MR 174B-Chip, whose characteristic curve is shown above.
| Type | Housing | Bridgeresistance kO | Features | | MR 174B | - | - | Chip | | KMZ 20 S | E-Line | 1,4...2,2 | | | KMZ 20 M | E-Line | 1,4...2,2 | With integrated bias magnet | | KMY 20 S | SOT 223-S | 1,4...2,2 | | | KMY 20 M | SOT 223-S | 1,4...2,2 | With integrated bias magnet | | KMY 21 M | SOT 223-S | 1,2...1,8 | Half-bridge, AC-measurement |
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KMY_KMZ_MR174B
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