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Sensitivus Gauge

Advanced Bike Sensor Technology

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Technology Roadmap

Torque cadence and angle sensor


Inductive torque, cadence, and angle sensors of the future


SG2Q – Gen 1: torque and cadence sensors

The contactless sensor module integrates a strain gauge/RFID-like torque sensor and a magnet-based cadence sensor allowing an air gap between the rotor and the stator up to several mm.

The compact SG2Q technology allows high accuracy, low latency, and very flexible integration for both mid-drive, direct/geared hub motors, and other applications.

The sensor system will lower power consumption in all applications. The compact design can be completely sealed, potted, or coated according to your needs.

SG3Q – Gen 2: inductive torque, cadence, and angle sensors

In the near future, Sensitivus will be able to deliver samples of the upgraded SG3Q sensor module. To improve the cadence sensor, it obtains signals from an inductive system instead of magnets. Using inductive signaling reduces the costs and improves both accuracy and latency.

In addition, the sensor will include an angular sensor based on the same inductive, frictionless technique. This can improve applications involving shifting, help reduce erroneous torque input from pedals hitting curbs, etc. It can also increase responsiveness by making torque measurements relative to the typical max torque for the crank angle.

SG4Q – Gen 3: smaller and even lower cost

The next step is to incorporate the torque, cadence, and angle sensor system into a custom chip. This will secure better integration, smaller size, and lower cost. Like the SG2Q and SG3Q, this robust and low-cost module can be customized to fit any mechanical design of pedelecs and small electric vehicles.

Sensitivus is constantly working on upgrading our sensor design. If you have any questions concerning future torque, cadence, and angle sensors, and whether they fit into your design, please contact our technical team in the contact form below.

 


FAQ


What is an angular sensor?
An angular sensor provides information about the angular position of an item. For an e-bike, this can be the crank angle or the bike angle relative to earth gravity (also called an inclination sensor). This information can be used by a motor controller to improve the ride feeling. A crank angle sensor is one example of an angular/angle sensor.

What is a crank angle sensor?
A crank angle sensor provides information about the angle of the crank typically relative to the frame. The motor controller uses this information to improve the ride feeling. For e-bikes with internal gears, the angle can be important when the gear shifting happens.

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