What are the advantages and disadvantages of hall effect transducer?

Advantages:

• High speed operation over 100 KHz possible. Whereas at high frequencies the inductive or capacitive sensor output begins to distort.
• When packed immune to dust, air, water where as capacitive sensor may get triggered by dust.
• It can measure zero speed.
• Non contact operation so there is no wear and friction, hence unlimited number of operating cycles.
• Highly repeatable operation.
• Capable of measuring large current.

Disadvantages:

• It may be affected by external interfering magnetic field.
• Large temperature drift.
• Large offset voltage.

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