The Null Zone Magnetic Sensor
KasperAero’s core technology is the Null Zone Magnetic Sensor—a versatile sensor solution with broad applicability. When it comes to integration, there’s no substitute
for experience. Who better to implement this innovative technology than the team that invented it?
The Null Zone Magnetic Sensor
KasperAero’s core technology is the Null Zone Magnetic Sensor—a versatile sensor solution with broad applicability. When it comes to integration, there’s no substitute
for experience. Who better to implement this innovative technology than the team that invented it?
Debris Sensor NZMS Applications
The Null Zone Magnetic Sensor (NZMS) is a novel sensing principle that uses a patent pending precise arrangement of components to create a region with a specially shaped magnetic field. By placing a magnetic field sensor in this zone, the sensor is especially atune to disturances in the nearby magnetic field.
Thanks to the physics of its design, the NZMS remains largely unaffected by temperature changes, regardless of permanent magnet composition. This gives the sensor exceptional reliability in harsh environments and makes it inherently more stable than other debris detection solutions.
For the KasperAero’s design team, this stability means greater flexibility to tailor sensors to specific applications. The KasperAero NZMS can increase debris capture efficiency without requiring a major redesign and can be configured to provide either an analog output or a digital signal.
Output Type (Analog / Digital)
Analog output enables debris generation trends to be monitored over time, making it possible to distinguish between normal wear patterns and early signs of a potential failure. Digital output operates by setting a predetermined debris threshold and alerting when that level has been reached. Multiple thresholds can be set to deliver valuable, instant data. This combination of real-time analog monitoring or multi-threshold digital alerts supports informed decision-making that maximizes operational outcomes.
Real-time data is the difference between an ambiguous warning light and a critical alert that can save lives.
Unlike many other debris sensors, KasperAero’s NZMS-based solution doesn’t rely on downstream chip collectors or analyzing filter contents. And thanks to its strong permanent magnet, it continues collecting debris even when electrical systems are powered down—such as during routine maintenance.
Alternative NZMS Applications
Beyond debris detection, this technology can be applied to magnetic speed sensors and ferrous proximity sensors. Both sensor types often suffer from reduced accuracy and reliability across wide operating temperature ranges. The NZMS’s inherent temperature stability addresses these limitations.
In magnetic speed sensors, NZMS technology enables reliable gear-tooth detection even under significant thermal gradients. However, like other speed sensors, performance may still be affected by the accumulation of ferrous debris on the sensing face.
For ferrous proximity sensors, the NZMS allows increased range by combining a highly sensitive magnetic sensor with a powerful magnet. Increasing magnet size and strength can broaden the sensing cone extending from the sensor face, so excessive magnet strength may enlarge the sensing area beyond desired limits.
Testing shows that the NZMS increases the effective range of integrated circuit magnetic sensors (Hall Effect, TMR, AMR, GMR) via an effective “back-bias” effect, even when the measured magnetic field is zero. Early testing shows this effect to be polarity-dependent: range increases by approximately 33% when the sensed magnet has the same polarity (repelling direction) as the NZMS back-bias field, and decreases by roughly 33% when the magnet has the opposite polarity (attracting direction).
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Proximity
NZMS technology enhances traditional ferrous proximity sensing by extending detection range by up to 30%. It's an ideal solution for harsh environments and applications involving large
ferrous objects, where reliability and precision are critical.
View Product Data Sheet »
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Debris
NZMS has redefined debris sensing in fuel, lubrication, and hydraulic systems. By detecting metal particles in fluids, these sensors provide early warnings of wear,
enabling predictive maintenance and helping prevent costly equipment failures. NZMS sensors maintain accuracy even in high-pressure, high-temperature environments
common to industrial and automotive systems.
View Product Data Sheet »
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Timing
With NZMS, magnetic speed sensing achieves new levels of reliability and repeatability even across extreme air gaps. This technology is engineered for demanding
environments where consistent performance is non-negotiable.
View Product Data Sheet »
Debris
NZMS has redefined debris sensing in fuel, lubrication, and hydraulic systems. By detecting metal particles in fluids, these sensors provide early warnings of wear,
enabling predictive maintenance and helping prevent costly equipment failures. NZMS sensors maintain accuracy even in high-pressure, high-temperature environments
common to industrial and automotive systems.
View Product Data Sheet »
Proximity
NZMS technology enhances traditional ferrous proximity sensing by extending detection range by up to 30%. It's an ideal solution for harsh environments and applications involving large
ferrous objects, where reliability and precision are critical.
View Product Data Sheet »
Timing
With NZMS, magnetic speed sensing achieves new levels of reliability and repeatability even across extreme air gaps. This technology is engineered for demanding
environments where consistent performance is non-negotiable.
View Product Data Sheet »
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