2Dex™ Hall Sensors

2Dex™ Hall Sensors

2Dex™ Hall Sensor Features

  • Highly linear Hall voltage
  • Small active area
  • Single or 3-axis configurations
  • Wide operating temperature range
  • Plug-and-play version available for direct connection to Lake Shore F71/F41 teslameters

Multiple package types

Due to the directional nature of magnetic fields, the positioning and orientation of the sensor are critical for accurate measurements. 2Dex sensors are offered in a range of package types to simplify the process of mounting a sensor in just the right location

FA axial package, AI axial insert package, FT transverse package, and 3D 3-axis packageLooking for Hall probes?

Simplify setup with 2Dex™ plug-and-play sensors

2Dex plug-and-play sensors2Dex plug-and-play sensors connect directly to the F71/F41 teslameters, giving you the installation flexibility of a Hall sensor with the measurement simplicity and performance of a teslameter/probe combination.

Easily calculate magnetic field values

Compared to other sensor technology, 2Dex sensors exhibit significantly less linearity error. This makes the conversions of Hall voltage to field values using simple sensitivity values much more viable.

Smaller active areas

2Dex Hall sensors have significantly smaller active areas than previous generation products. This results in improved spatial resolution and reduced signal averaging, useful when measuring fields close to a source where field gradients can be extreme.

Comparison of active area sizes of InAs Hall sensors and the new 2Dex sensor

Better 3-axis measurements

2Dex 3-axis magnetic sensors have been designed to maximize orthogonality between x, y, and z sensor elements, resulting in more accurate vector magnitude measurements when field direction is unknown or changing.

Predictable, flexible, and fast

Many magnetic sensors rely on auxiliary measurement conditioning circuitry, resulting in restrictions on the sensor’s range, resolution, and accuracy. 2Dex Hall sensors use a very simple Hall structure without the need for auxiliary conditioning circuits. Sensor performance is achieved through meticulous manufacturing and testing of each sensor. This results in the predictability and repeatability of more complex circuits with the flexibility of a simple Hall element.

Flexibility examples include:

I sensitivity increase

Sensitivity (measurement resolution) can be increased by supplying higher than nominal current to the sensor

 
Resitant to magnetic field, radiation, and temperature

Increased resilience to high levels of magnetic field, radiation, or temperature than traditional sensors

 
Use different excitation methods

Select different excitation methods, trading accuracy for complexity (voltage, DC current, reversing current, current spinning)

 
Operate reliably

Continue to operate reliably even in the world’s most powerful magnet systems

 
FAST response!

Faster response than many IC-based sensors — important when detecting or measuring pulses and AC signals

Suitable for extreme environments

Temperature

liquid nitrogen Dewar

Materials in 2Dex sensors have been selected to work at both cryogenic and elevated temperatures, resulting in sensors with extremely wide operating temperature ranges. These sensors have also been characterized over their full operating temperature range for variables such as sensitivity, resistance, offset voltages, and quantum oscillations. This provides sensors with predictable behavior for various scenarios, and when they are paired with an F71 or F41 teslameter, automatic compensation for these variables result in highly accurate measurements — even in extreme environments.

Radiation

Satellite in space

The 2DEG material used in these sensors is inherently resilient to radiation —  so much so that the same material used in 2Dex sensors has been used in satellite solar panels.

Vacuum

2Dex SH package

(New package coming soon) Based on the popular SD package for cryogenic temperature sensors, the hermetic construction of the SH package makes it suitable for extreme research environments, including UHV scenarios.