Never zero your probe again

Offset errors in typical Hall probes occur for several reasons:

• Thermoelectric effects, which cause the offset to change with temperature.
• Imperfect contact placement geometry on the sensor, which creates so-called “misalignment voltage” errors that are harder to correct for.

These errors result in probe “drift,” impacting measurement repeatability.

Typical Hall probes must be regularly placed in a zero-gauss chamber to zero out offsets that develop over time.

TruZero™ technology

Lake Shore’s TruZero™ technology eliminates the need to perform these frequent zeroing operations, saving time and ensuring that measurements are always accurate.

This multi-part technology is accomplished through multiple mechanisms:

		2Dex™ Hall effect sensors used in FP Series probes are highly symmetrical and uniform, resulting of inherently low zero-field offset voltages
		Special insulation used in the cable for optimum dielectric performance.
		An advanced sensor excitation “spinning” technique progressively switches between different measurement configurations.
		An onboard algorithm combines the sequential Hall voltage readings in a way that eliminates any offsets due to misalignment and thermoelectric effects. This method also reduces flicker noise, meaning that readings are both more accurate and more precise.

This means there is never a need to “zero” the probe before making a measurement. TruZero™ technology allows fast, worry-free, and always accurate measurements.