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Pioneering sensor measures torque and angle wirelessly

August 3, 2023 by Berit Viuf

### PRESS RELEASE ###

The Danish company SENSITIVUS gauge has launched an innovative combination of sensor technologies for simultaneous measurement of torque and angle.

The sensor is developed for electric bicycles, a fast-growing market, but can be used in many different applications within the automotive industry, wind turbines, machines, and various types of robotic technology. Its versatility and flexibility make it a valuable tool in a wide variety of applications.

On electric bikes, torque and angular velocity (cadence) are central to controlling the motor.

– The cycling experience achieved with a fast and precise sensor cannot compare to what is on the market right now, says inventor and CEO Rolf V. Østergaard.

The major advantages of a really accurate sensor are more responsive and predictable steering, safer control, and greater driving pleasure.

– It is safer to ride a bike with a motor that gives you precisely the assistance you need. This will prevent you from experiencing sudden jerks of power. Instead, it should feel like driving an ordinary bike – but having superpowers. It simply makes it more fun to ride,” Rolf Østergaard adds.

Good old strain gauge technology in new settings

The first customers for the new sensor come from the industrial segment and from a rapidly growing group of companies that develop and produce motors for electric bicycles. The interest is so intense that Sensitivus has had to introduce a waiting list for new customers.

The sensor differs significantly from traditional sensors that typically use a magnetostrictive principle for measuring torque. By using the strain gauge technique Sensitivus has fine-tuned for the past 9 years, it has succeeded in bringing the power consumption of the entire sensor down to below 150 mW, while the precision is up to 10 times better.

The angle helps “dead” zones

As something new on electric bikes, the same sensor can measure absolute angles. It will quickly calculate cadence on the crank. But Sensitivus’ customers are ready to go a step further to make e-bikes even easier and more intuitive to ride.

The angle of the crank is used to boost the engine in the two vertical “dead” zones, where the legs can’t really provide that much momentum. It has somewhat the same effect as when cyclists use oval blades to get easily and quickly past the point where the pedals are in the top/bottom position. It is a feature in demand, especially on heavy cargo bikes.

Where magnetostrictive sensors in their principle and design are suited for measuring torque on a pipe or shaft, the Sensitivus sensor is equally useful when the mechanical construction requires measuring torque on a disc. That need typically occurs when (automatic) transmission and engine are combined in a compact unit.

Filed Under: Uncategorized

E-bikes on the rise – How can we prevent accidents?

November 30, 2022 by Berit Viuf

### PRESS RELEASE ### The market for electric bicycles is booming. Various market analysts have different estimations of growth, but one thing they all say: The sales of electric bikes are expected to take a large rise in the coming years. The downside to that is that electric bicycles seem to cause more severe accidents… Read more

Filed Under: Uncategorized

NEW E-BIKE TORQUE SENSOR: FASTER AND SAFER

August 30, 2021 by admin

### PRESS RELEASE ###   E-bikes are about to get safer and more fun to ride thanks to improved sensor technology from Danish Sensitivus Gauge. The perfect e-bike feels like any other bike, only you are much stronger. The natural bike feeling requires zero lag between what happens at the pedals and what happens at… Read more

Filed Under: PRESS RELEASE

SENSITIVUS INSIDE WORLD’S LIGHTEST POWER METER CRANKSET

December 29, 2020 by admin

### PRESS RELEASE ###   The world’s lightest power meter crankset is now available from THM Carbones based on a unique collaboration between the danish power meter technology provider Sensitivus Gauge and THM Carbones in Germany. The unique full carbon technology in the Clavicula SE crankset from THM Carbones combined with the proven power meter… Read more

Filed Under: PRESS RELEASE

$6 POWER METER TECHNOLOGY

February 25, 2020 by admin

  ### PRESS RELEASE ###   Danish Sensitivus Gauge ApS is now enabling any manufacturer to add a power meter to a crankset at a cost of $6. Sensitivus provides full non-exclusive access to schematics, source code, mechanical drawings, reference designs, and all the know-how needed for both the immediate implementation of power meter technology… Read more

Filed Under: PRESS RELEASE

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