POSITAL LINARIX Draw Wire Sensors: Precise Linear Position Measurement for Industrial Applications

In modern industrial automation, accurate position measurement is essential for ensuring reliable machine operation, process efficiency and safety. Whether it is monitoring the extension of a crane boom, measuring the movement of material-handling equipment or tracking the position of a mechanical component, industries need sensing solutions that are accurate, robust and easy to integrate.

POSITAL LINARIX Draw Wire Sensors provide a practical solution for linear position and displacement measurement across a wide variety of industrial applications. Combining precision encoders with reliable draw-wire mechanics, LINARIX sensors convert linear movement into accurate position data while offering flexible measuring ranges, multiple communication interfaces and configurations for challenging industrial environments.

What Are Draw Wire Sensors?

Draw wire sensors, also known as cable pull sensors, are designed to measure the linear movement or position of an object.

The sensor consists of a measuring wire connected to a spring-loaded drum and an encoder. As the monitored object moves, the wire extends or retracts. The encoder measures this movement and generates an electrical signal corresponding to the position of the object.

This approach enables linear displacement to be measured without requiring a sensor assembly to extend across the entire measurement distance.

POSITAL LINARIX sensors are available with measuring lengths ranging from 1 metre to 15 metres, making them suitable for applications ranging from compact machines to large industrial equipment.

Key Features of POSITAL LINARIX Draw Wire Sensors

1. Wide Measuring Range

Industrial applications can vary significantly in the amount of movement that needs to be monitored.

LINARIX sensors offer measurement ranges from 1 m to 15 m (3 ft to 49 ft), giving machine builders and system integrators flexibility when selecting a sensor for different equipment sizes and operating requirements.

2. Accurate Position Measurement

LINARIX sensors combine high-quality draw-wire mechanisms with POSITAL encoder technology to provide reliable position feedback.

Depending on the sensor configuration and application, the range supports precise measurement capabilities suited to demanding motion-control tasks. For example, POSITAL specifies resolution of up to 4 µm for certain crane applications and linear accuracy of up to 0.35 mm for material-handling applications.

3. Multiple Communication Interfaces

One of the important considerations when selecting an industrial position sensor is its compatibility with the existing automation architecture.

POSITAL LINARIX sensors are available with more than 15 communication interface options, including:

• Ethernet-based interfaces

• Traditional fieldbus systems

• Analog outputs

• Parallel interfaces

• SSI

• IO-Link

This variety allows engineers to integrate LINARIX sensors into both conventional and modern industrial control systems.

4. Flexible Configuration

Different machines often require different measuring ranges, resolutions and output characteristics.

POSITAL provides configurable LINARIX solutions that allow the sensor to be adapted according to application requirements. With scalable analog outputs, teach-in functionality and POSITAL's UBIFAST configuration capabilities, users can configure important operating parameters without requiring an entirely different sensing concept for every machine design.

5. Options for Demanding Industrial Environments

Industrial sensors may be exposed to dust, moisture, temperature variations, vibration and outdoor operating conditions.

LINARIX sensors are available in different housing designs, including extruded metal, machined metal and plastic housings, allowing users to choose a configuration based on mechanical and environmental requirements.

Certain configurations offer environmental protection of up to IP69K, while POSITAL lists operating capabilities for some applications across temperatures from -40°C to +85°C.

Different LINARIX Configurations for Different Requirements

One of the strengths of the LINARIX platform is the availability of multiple mechanical configurations.

Extruded Metal Housings

These versions are designed for applications requiring robust construction, flexible mounting and reliable performance in demanding environments. POSITAL specifies acceleration capability of up to 7 g for this category.

Plastic Housings

Compact plastic-housing versions provide an economical solution where installation space and cost are important considerations while maintaining accurate position measurement.

Their small footprint makes them particularly attractive for OEM machine designs.

Machined Metal Housings

Machined metal versions provide a compact and economical option suited to industrial operating environments where a durable enclosure is required.

Where Can LINARIX Draw Wire Sensors Be Used?

The flexibility of draw-wire measurement makes LINARIX sensors suitable for a wide variety of machines and industrial systems.

Cranes and Boom Equipment

For cranes, telescopic booms and lifting equipment, knowing the exact extension or position of moving components is essential.

LINARIX sensors can provide position feedback over measuring ranges of 3 m to 15 m in crane applications. POSITAL also offers solutions that combine linear measurement with inclination measurement, enabling both extension and angular position to be monitored.

Material Handling

Automated material-handling equipment requires accurate feedback to control movement, positioning and process sequences.

Draw-wire sensors can be integrated into equipment to monitor linear travel without requiring complicated mechanical measurement assemblies. POSITAL highlights linear accuracy of up to 0.35 mm and rugged environmental protection for relevant material-handling configurations.

Medical Systems

LINARIX sensors can also be used for applications involving length and height measurement in medical systems, where high resolution and reliable measurement are important.

Floodgates and Water Infrastructure

Straight and vertical floodgates require accurate position monitoring to control opening and closing movements.

LINARIX sensors offer programmable options and multiple interfaces, making them adaptable to different control architectures used in such infrastructure applications.

Why Choose Draw Wire Measurement?

Traditional linear measurement arrangements can become difficult to install when the measurement distance is large or when available mounting space is limited.

A draw-wire sensor packages the measuring mechanism and encoder into a relatively compact assembly. Only the measuring cable needs to follow the movement of the monitored component.

This can offer several practical advantages:

• Compact installation

• Flexible measuring distances

• Straightforward mechanical integration

• Multiple electrical interface choices

• Accurate position feedback

• Solutions for indoor and outdoor environments

• Configurations for both OEM and heavy-duty applications

For machine builders and automation engineers, this flexibility can simplify the process of integrating linear position feedback into new or existing equipment.

POSITAL LINARIX for Modern Industrial Automation

As industrial systems become increasingly connected and automated, accurate position feedback is becoming an important part of machine intelligence.

Sensors need to do more than simply detect movement. They must communicate effectively with automation systems, operate reliably under demanding conditions and provide the flexibility required for different machine designs.

With measuring ranges from 1 to 15 metres, multiple mechanical configurations, absolute-position options and a broad selection of industrial communication interfaces, POSITAL LINARIX Draw Wire Sensors provide a versatile platform for linear displacement measurement.

Explore POSITAL Solutions with Rexel India

Rexel India offers POSITAL solutions for industrial motion sensing, including linear sensors, rotary encoders, inclinometers, kit encoders and related technologies.

For machine builders, OEMs, automation professionals and industrial users looking for reliable linear position measurement, POSITAL LINARIX Draw Wire Sensors offer a flexible solution across a broad range of applications.

Connect with Rexel India to explore the right POSITAL LINARIX configuration for your application.