Geomagnetic sensors are used to measure the Earth's magnetic field to provide absolute reference and heading. But a large challenge is the changing magnetic fields that temporarily distort the heading information, such as metal parts in furniture, a passing car, or nearby mobile phones and computers. Compensating for these and other transient magnetic anomalies requires the geomagnetic sensor to be able to precisely distinguish between sensor noise (blur) and real changes in magnetic field. PNI's geomagnetic sensors lead the field in their ability to reduce blur to establish the true magnetic field, outperforming other magnetic sensors by orders of magnitude.
RM3100 Sensor Suite (Part Number 90053)
RM3100 is a 3-axis magnetic sensor suite driven by PNI’s MagI2C ASIC interfaced through an I²C or SPI bus, eliminating the need for signal conditioning or an analog/digital converter. The RM3100 magnetic sensor is the highest performance sensor in its class with over 20 times better resolution and over 30 times lower noise than the leading Hall Effect sensor. Ideal for drones, robotics, VR, motion-tracking, and navigation.
RM2100 Sensor Suite (Part Number 90052)
RM2100 is a 2-axis magnetic sensor suite that contains two Sen-XY sensors driven by PNI’s MagI2C ASIC interfaced through an I²C or SPI bus, eliminating the need for signal conditioning or an analog/digital converter. RM2100 enables 2D applications and is ideal for robotics and digital compass applications where pinpoint accuracy is critical.
Parameter |
Leading Hall Effect Sensor |
PNI Sensor's Magneto Inductive Sensor |
Sensitivity (nT) |
300 nT |
13 nT |
Noise (nT) |
500 nT |
15 nT |
Current Usage @ 8 Hz, 3 Axis |
280 μA |
70 μA |
Additionally, PNI's Geomagnetic Sensors are simple to design in and the peak current requirement is dramatically less than Hall Effect sensors. It is not surprising that this patented technology has been proven across a wide spectrum of applications, including motion tracking, compassing, game, TV and set top box controllers and magnetic field measurement.
Product Availability
PNI offers Geomagnetic Sensor Suites comprised of three sensor coils - two Sen - XY sensors and one Sen-Z sensor - plus one of PNI's proprietary ASIC's.
The RM3100 (Part Number 90053) offers improved performance due to a new and improved ASIC, the MagI2C and offers both SPI and I2C interfaces for easy integration in a wide variety of systems.
The RM3100 Breakout Board (Part Number 14190) - PNI's RM3100 Breakout Board integrates PNI's 3-axis industry-leading magnetic sensor suite and MagI2C ASIC on a single PCB. This allows for easy testing and evaluation of our patented high-performance magnetic sensors.
The RM3100 Evaluation Board (Part Number 13606) integrates PNI’s magnetic sensors and MagI2C ASIC onto a single PCB. The Evaluation Board includes header pins for easy mounting.
The RM3000 remains available to current customers and offers SPI interface with the 3D MagIC ASIC.
The RM3000 Evaluation Board incorporates the RM3100 with peripheral components on a single PCB. It is ideal for evalutaion and prototyping applications.
Product Specifications
Linearity over ± 200 µT (Typical) |
0.6 % |
Max 3-Axis Sample Rate |
550 Hz |
Interfaces |
SPI and I2C |
Dimensions |
MagI2C ASIC 4.0 x 4.0 x 0.75 mm
3DMagIC ASIC 5.0 x 5.0 x 0.9 mm
Sen XY 6.0 x 2.1 x 2.2 mm
SEN Z 3.0 x 3.0 x 5.75 mm
|
To find out how you can integrate the RM3100 Geomagnetic Sensor into your hardware, or for pricing and technical information: Contact Willow +44 (0) 1342 717102