Advanced Solutions for Measurement & Control

// Non-Contact Linear Position Measurement

Linear Position Sensors

Our range of non-contact linear position sensors are specifically designed to monitor linear position in applications that are subject to extreme environments.

linear position sensor
Introduction

Gill linear position sensors use induction technology to sense the position of a metallic object ('activator') mounted to or formed as part of the moving part of the application. As there is no physical contact between the sensor and the moving part the sensor will not deteriorate through use, giving excellent long-term reliability.

Each linear position sensor can be configured to operate over the exact measurement range required, providing optimal measurement resolution for each application.

The Blade25 and Blade60 linear position sensors are capable of monitoring up to 25mm and 60mm respectively. Uniquely, the Dual Cavity Sensor's measurement range is determined only by the size and shape of the activator, with an optimum measurement range of between 30-50mm for linear output characteristics.

Features & Benefits
  • Non-contact technology gives great long-term reliability
  • All sensors are optimised for applications with a small amount of linear travel
  • No output drift over operating temperature range
  • Fully sealed - Perfect for harsh environment applications
  • High accuracy for precision linear position feedback
Custom Linear Position Sensors

If our standard linear position sensor range is not suitable we can develop a bespoke linear position sensor according to your exact specification requirements. We are often able to use our existing electronic platforms with custom mechanical packaging, reducing overall development time and costs. We have vast experience in this area, supplying small batch prototypes right through to OEM volumes.

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Linear Position Sensors
// Examples of applications for Linear Sensors Typical Applications

Gill linear position sensors can be designed into most existing and new applications that require precision monitoring of a small linear measurement range. Some example applications are shown below

  • Pedal Position Monitoring Soft-stop doors (Blade25 Linear Position Sensor)

    In this application the Blade25 position transducer is used to control closing of an electronically-operated sliding door. The sensor monitors the left-most 25mm potion of the door via an integral activator and feeds back the position in real-time to the door's controller, allowing for soft-stop operation and system feedback when the door is in the 'fully-closed' position.

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  • Pedal Position Monitoring Rail Points Position (Custom Rail Points Linear Position Sensor)

    This custom sensor uses the same measuring principle as the Blade60, with a revised electronic and mechanical layout allowing the sensor to monitor 120mm of linear travel. The sensor is mounted within a housing at the side of the track. The activator is mounted to a moving arm which is itself connected to the moving part of the rail points.

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  • Suspension Rocker Position Feedback Gearbox Dog Ring Position (Custom Dog Ring Linear Position Sensor)

    In this transmission application the custom position sensor monitors the position of the gearbox dog ring during a gear change. No additional ‘activator’ component is required as the sensor is able to sense the linear position of the dog ring itself. The total linear travel in this application is approximately 12mm.

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  • Control Levers and Joysticks Gearbox Shift Fork Position (Custom Gear Shift Linear Position Sensor)

    This custom position transducer uses the Blade25's core electronics and operating principle, in a custom configuration suitable for an industrial gearbox. The position transducer is mounted through the transmission housing; the activator is machined into the top of the shift fork and moves across the face of the sensor when the operator changes gear.

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