What is the difference between linear and rotary position sensors?

Linear position sensors (often called transducers) measure movement along a straight line, such as the extension of a hydraulic cylinder or the slide of a machine tool. Rotary position sensors (angle sensors) measure the rotational movement of a shaft, such as a steering wheel or a robotic arm joint.

What is a magnetostrictive position sensor?

Magnetostrictive sensors are non-contact linear transducers. They use a magnetic field to measure the position of a moving magnet along a sensing rod. Because there is no physical contact between the magnet and the rod, there is no mechanical wear, making them ideal for continuous use in industrial machinery.

Are Novotechnik position sensors suitable for harsh environments?

Yes. Our TF1 and Vert-X series are designed for extreme conditions. They feature IP67 to IP69K sealing, high shock and vibration resistance, and extended temperature ranges, making them suitable for mobile hydraulics, agriculture, and off-highway applications.

What output signals are available?

We support all major industrial interfaces to ensure easy integration with your PLC or control system. Options include Analog (Voltage/Current), SSI, CANopen, IO-Link, and Ethernet/IP.

Position Sensors: Linear Transducers & Rotary Measurement Solutions

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Definitions and Working Principles

Overview

In the world of high-performance motion control, accuracy is nothing without reliability. Novotechnik’s position sensors serve as the critical data link between mechanical motion and electronic control systems, ensuring your machines perform flawlessly in the most demanding environments.

From the high-pressure hydraulics of off-highway vehicles to the sub-millimeter precision of packaging machinery, our sensors are engineered to survive. We offer a comprehensive portfolio of Linear Transducers (measuring displacement) and Rotary Sensors (measuring angle), featuring technologies that range from cost-effective Potentiometric conductive plastic to infinite-life Magnetostrictive and Inductive non-contact systems.

Whether you need a drop-in replacement for a wear-prone part or a custom IP69K solution for a new mobile hydraulic design, Novotechnik ensures precise, absolute measurement that keeps your operation running.

Linear Position Sensors (Magnetostrictive & Inductive)

Magnetostrictive & Inductive Linear Transducers (Non-Contact)

For applications demanding long strokes, high dynamics, and zero maintenance, our Touchless Linear Sensors are the industry benchmark. Utilizing advanced Magnetostrictive technology, these sensors measure the position of a floating magnet along a sensing rod without any physical contact.

Wear-Free Durability: Since the magnetic position marker never touches the sensing element, there is absolutely no mechanical wear, ensuring a virtually unlimited service life even after millions of cycles.
Vibration & Shock Resistant: Ideal for mobile hydraulics and injection molding, where shock loads destroy lesser sensors.
Absolute Precision: Position data is available immediately upon power-up with no "homing" routine required.
Key Specs: Stroke lengths up to 4,250 mm; IP67/IP68 protection; outputs include Analog, SSI, CANopen, and IO-Link.

Rod Type Position Sensors

Rod-Style Linear Potentiometers & Transducers

Our Rod-Type Sensors are the versatile workhorses of industrial automation. Designed for universal mounting, these sensors feature a robust actuating rod supported by high-grade bearings to ensure smooth operation even under lateral load.

Versatile Technology: Available in both Non-Contacting Inductive/Magnetic (for harsh duty) and Potentiometric (for real-time, cost-effective feedback) configurations.
Built for Tough Environments: Options include steel-sleeved housings for impact protection and IP-rated seals to block dust and moisture.
Smart Features: Select models offer programmable signal outputs and pivot-head mounting to automatically compensate for mechanical misalignment in the application.
Stroke Range: Precision measurement from compact 10 mm strokes up to 750 mm.

In-Cylinder Linear Position Sensors

Hydraulic & Pneumatic Cylinder Sensors (Mobile Hydraulics)

Engineered specifically for integration into hydraulic and pneumatic cylinders, our In-Cylinder Sensors provide the rugged feedback required by the mobile equipment industry. These sensors are pressure-rated up to 350 bar, allowing them to be installed directly into the pressurized fluid zone of the cylinder.

Magnetostrictive Reliability: Uses non-contact technology to prevent wear, even in rapid-cycling applications like construction cranes and agricultural steering.
High-Pressure Design: The stainless steel pressure tube protects the electronics while delivering sub-millimeter accuracy.
Seamless Integration: Compact head designs fit standard cylinder port openings for easy OEM integration.
Range: Available stroke lengths from 50 mm to 4,250 mm.

Side-Actuated Linear Position Sensors

Side-Actuated & Profile-Style Transducers

When end-to-end rod mounting isn't possible, Side-Actuated Sensors offer a space-saving alternative. These "profile" style sensors feature a sliding carriage or floating magnet that moves along the side of the sensor body, making them perfect for retrofitting onto machine frames.

TP1 Series (Touchless): A magnetostrictive powerhouse that detects a floating magnet up to 4,500 mm away. Perfect for wear-free feedback on large machine tools and gantries.
TLH Series (Potentiometric): The classic "rodless" potentiometer. Features a sliding carriage that mechanically links to your moving part, offering a cost-effective solution for strokes up to 3,000 mm.
Easy Mounting: The extruded aluminum profile acts as its own mounting rail, simplifying installation on conveyors and cutting machines.

Two types of side-actuated position sensors are available from Novotechnik. The TP1 Series uses touchless magnetic technology and the TLH is potentiometric. Stroke lengths covered are from 0 to 50 mm to 0 to 4,500 for TP1 Series and 0 to 100 mm to 0 to 3,000 mm for TLH Series.

FAQ

What is the difference between linear and rotary position sensors?

Linear position sensors (often called transducers) measure movement along a straight line, such as the extension of a hydraulic cylinder or the slide of a machine tool. Rotary position sensors (angle sensors) measure the rotational movement of a shaft, such as a steering wheel or a robotic arm joint.
What is a magnetostrictive position sensor?

Magnetostrictive sensors are non-contact linear transducers. They use a magnetic field to measure the position of a moving magnet along a sensing rod. Because there is no physical contact between the magnet and the rod, there is no mechanical wear, making them ideal for continuous use in industrial machinery.
Are Novotechnik position sensors suitable for harsh environments?

Yes. Our TF1 and Vert-X series are designed for extreme conditions. They feature IP67 to IP69K sealing, high shock and vibration resistance, and extended temperature ranges, making them suitable for mobile hydraulics, agriculture, and off-highway applications.
What output signals are available?

We support all major industrial interfaces to ensure easy integration with your PLC or control system. Options include Analog (Voltage/Current), SSI, CANopen, IO-Link, and Ethernet/IP.