Gear Sensors | contactless measurement technology For position, RPM and angle detection

Gear and magnetic sensor—a wear-free measurement system

Thanks to a special magnetic measurement principle from SIKO GmbH, which is exhibiting this year at SPS/ IPC/ DRIVES 2010, in Hall 4A, Stand 241, low-cost gears can be used as position sensors. Other standards that also have a tooth structure, such as cograils, can also be deployed using this new technology.

Major advantages of the measurement system include its low price, the high temperature range possible (up to 125 deg. C), non-contact sensing and possible use in future in heavy-duty applications.

Sensed at the gear tooth

The sensors in these compact new measurement systems record the movement of the gear teeth. They can therefore deduce changes of position, angles and RPMs. The highly-integrated incremental measurement principle also allows high resolution and repeat accuracy. SIKO is a leader in magnetic measurement technology. The robustness of the systems, which have encapsulated sensors, opens up a variety of highly demanding applications, as dirt, moisture, shock and vibration do not affect the quality of the results.

Advantages

• Fully wear-free due to non-contact operation
• High resolution with selectable scaling factors
• For gear modules 0.5 and 1.0
• Sensor cast into a metal case
• Temperature range up to 125 deg. C possible
• Ideal for harsh environments

Applications

• High-speed drive spindles in milling and grinding machines
• Wind power turbines
• Lift technology
• Rail vehicles
• Heavy-duty uses, such as ships and cranes
• Motor feedback