Linear Position & Displacement Sensor

Linear Potentiometer / Linear Position Sensor

A linear potentiometer or linear position sensor measures straight-line movement or displacement. It converts linear motion into an electrical signal and is widely used in automation, hydraulic systems, actuators, testing machines, robotics, and industrial positioning applications.

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Measures linear displacement and movement

Useful in cylinders and actuators

Provides analog position feedback

Ideal for industrial IoT integration

What is a Linear Position Sensor?

A linear position sensor measures the movement of an object along a straight path. The sensor converts displacement into an electrical signal for monitoring and control.

Industrial Meaning

Linear potentiometers are commonly installed in hydraulic cylinders, presses, actuators, gates, robotics, and machine automation systems.

Why it Matters

Accurate position feedback improves machine control, repeatability, safety, and process automation.

Movement occurs

Object moves linearly.

Sensor tracks

Slider changes resistance.

Signal generated

Analog voltage changes.

Controller reads

Position data is processed.

Working Principle

A linear potentiometer contains a resistive track and a movable wiper. As the shaft or slider moves, the output voltage changes proportionally to the displacement.

Typical Applications

Hydraulic cylinder monitoring
Industrial actuators
Machine positioning
Robotic motion systems

Where the Signal Goes

PLC / SCADA system
Motion controller
Servo drive system
IoT gateway and cloud platform

Industrial Applications

Linear position sensors are used wherever displacement, stroke movement, or actuator position must be monitored.

Hydraulic Cylinders Measures piston travel and stroke length.

Actuator Systems Provides accurate position feedback.

Machine Automation Supports motion and travel control.

Robotics Monitors arm and joint movement.

Testing Machines Measures displacement during tests.

IoT Monitoring Supports remote analytics and alarms.

Typical Technical Specifications

Exact specifications depend on stroke length, sensing technology, enclosure type, and industrial application.

Parameter	Typical Range	Notes
Measured Quantity	Linear Position / Displacement	Linear movement sensing
Measurement Range	Few mm to several meters	Depends on model
Measurement Principle	Resistive Potentiometer	Voltage proportional to position
Outputs	0-5V, 0-10V, 4-20mA	Industrial analog outputs
Communication	Analog / RS485 / Modbus	Depends on integration system
Supply Voltage	5V, 12V, 24V	Depends on model
Operating Temperature	-20°C to +80°C typical	Industrial models vary
Installation	Fixed Mechanical Mount	Depends on application

IoT Integration

Linear position monitoring becomes more powerful when connected to industrial IoT dashboards and analytics systems.

Gateway Integration

The sensor can communicate through analog signals, PLC systems, or industrial IoT gateways.

Dashboard Logic

Dashboards may show displacement, actuator travel, cylinder stroke, and movement history.

Common Alarm / Action Conditions

Stroke limit exceeded
Unexpected actuator movement
Position deviation
Movement not completed
Sensor signal instability

Frequently Asked Questions

Common questions about linear position sensing systems.

Why use linear potentiometers?

They provide simple and accurate analog position feedback for industrial automation and motion control.

Where are linear position sensors commonly used?

They are widely used in hydraulic cylinders, actuators, robotics, and machine automation systems.

Can the position data be monitored remotely?

Yes. Sensor outputs can be integrated into IoT dashboards, alarm systems, and cloud platforms.

Hexitronics Industrial IoT Integration

Linear position sensors are a critical part of industrial automation. When integrated with IoT systems, they enable remote visibility, position analytics, predictive maintenance, and smart control systems.

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