Unrivalled resolution and field range from graphene Hall sensors

Paragraf introduces a new range of unique analogue Hall sensors, based on the high-performance material, graphene.

The Paragraf GHS range provides not only ultra-high performance measurement, sensing and control but brings new properties for Hall sensors to the table. This includes true in-plane measurement, due to the 2D nature of the sensing element and extreme environment compatibility, thanks to the physical properties of graphene.

This game changing breakthrough in Hall sensor technology resets the thinking as to where Hall sensors can be utilised. The GHS is already being applied in a range of application spaces and sectors; automotive, industrial, medical & healthcare, aerospace and scientific research.

GHS Applications:

·        High precision position, rotation, torque and speed sensing

·        Accurate operation under magnetic and temperature extremes

·        Precision magnetic field measurement

·        Accurate field gradient mapping and alignment

·        High sensitivity current and power measurement

·        Continuous ultra-low power sensing

Paragraf currently offers two GHS ranges:

1) GHS-A | The Ambient Sensor

Example applications | e-mobility, local current density analysis, mapping of battery cells.

The GHS-A has the magnetic field measurement resolution and range of more complex magnetic sensors, yet with the small size and very simple ease of use of a Hall sensor. It can address monitoring tasks for which conventional technologies cannot provide an effective or cost-effective solution.

Features of the GHS-A include:

·        High sensitivity

·        Low noise

·        Ultra-low power operation

·        Immunity to in-plane stray fields

·        No hysteresis and no saturation in output

·        All-round robustness

2) The GHS-C | The Cryogenic Sensor

Ultra-high resolution magnetic field measurements under operational extremes of temperature and field range.

The GHS-C range achieves outstanding resolution at cryogenic extremes, with the technology proven at mK temperatures, and verified for measurement beyond 30 Tesla, whilst introducing new properties such as a negligible planar Hall-Effect and all-round robustness.

Benefits of the GHS-C include:

• Measurements directly in cold bore – room temperature inserts not needed, allowing quicker collection of quality data

• More accurate characterisation of material properties at the extremes of temperature and magnetic fields

• Achievement of the lowest possible base temperatures – the power consumption of the GHS-C is extremely low, keeping heat load at cold finger to a minimum

• Small form factor when compared to fluxgates and NMR probes

• Measurements in small spaces

• Ease of calibration

More information on the Paragraf graphene Hall sensors can be found at www.paragraf.com

Paragraf is also holding a joint webinar with HFML (High Field Magnetic Laboratory, Netherlands) on 1 December 2021, to share the performance of the graphene Hall sensors under extreme conditions.

Register your place at the webinar here