Wire displacement sensor with 1000 mm incremental encoder

The DLE-S allows linear movement of up to 1,000 mm to be transformed into an incremental signal that is easy to process using electronic control and acquisition systems. Its compact format is especially useful when installing a linear scale is impractical or when measuring the displacement of a moving part from a fixed point.

Automation and industrial machinery

• Measurement of position and displacement of moving elements.
• Stroke control up to 1,000 mm.
• Position of actuators and cylinders.
• Control of opening and closing mechanisms.
• Elevation and descent measurement.
• Position feedback to PLC or high-speed counter.

Test benches and laboratories

The incremental output and the different resolutions available allow the DLE-S to be used as a displacement sensor in test benches where it is necessary to relate position, force, pressure, torque or other magnitudes during a test.

• Test benches for actuators and cylinders.
• Tensile and compression tests.
• Fatigue tests and cyclic movements.
• Measurement of travel during load tests.
• Simultaneous acquisition of displacement and other physical variables.

Civil works and structural testing

In protected installations it can be used to measure relative displacements, deflections and movements of structural elements during load tests or trials.

• Deflection measurement during load tests.
• Control of relative displacements between elements.
• Tests on structures and components.
• Temporary monitoring during mechanical tests.

Important: The DLE-S has IP50 protection only on the encoder housing. For outdoor installations, dust, humidity, or weathering, it must be installed within a suitable enclosure or a sensor with a higher IP rating must be selected.

Rail sector

• Testing and maintenance of bogies.
• Verification of door movement.
• Suspension tests.
• Measurement of displacement of railway mechanisms.

Aeronautical sector

It can be used in tooling, test benches and ground testing equipment to measure the movement of mechanisms, actuators and components with strokes of up to one meter.

Naval and defense sector

In equipment installed in protected conditions, it can be used to verify the travel of actuators, hatches, and other linear mechanisms during testing, integration, or maintenance.

The DLE-S is manufactured with five different resolutions, allowing the number of pulses generated to be adapted to the needs of each application:

• 1 mm/pulse: 1 pulse/mm.
• 0.5 mm/pulse: 2 pulses/mm.
• 0.2 mm/pulse: 5 pulses/mm.
• 0.1 mm/pulse: 10 pulses/mm.
• 0.04 mm/pulse: 25 pulses/mm.

The version of 0.04 mm/pulse It provides the highest resolution in the series, generating 25 pulses per millimeter of displacement.

The resolution indicates the displacement increment corresponding to each encoder pulse and should not be confused with the absolute accuracy of the assembly. The declared repeatability of the DLE-S is ±0.05 % of the full scale and ±1 count.

The internal mechanism converts the linear motion of the cable into the rotation of a incremental encoder. The output consists of a digital square wave signal with channels A, B and Z.

Channels A and B are 90° out of phase, allowing the control system to determine the direction of movement and measure the distance traveled. Channel Z provides the encoder's reference signal.

Depending on the version selected, the DLE-S may be supplied with:

• Push-pull outlet.
• TTL line driver output with 5 VDC power supply.

The maximum response frequency is 100 kHz, Therefore, it can be integrated with PLC fast inputs, counter modules, data acquisition cards, and controllers compatible with incremental signals.

Connection assignment

• +V: red cable.
• 0 V common: black cable.
• Channel A: blue cable.
• Channel B: green cable.
• Channel Z: yellow cable.

The displacement is transmitted via a cable SUS304 stainless steel, 0.6 mm diameter with nylon coating. An internal spring mechanism keeps the cable coiled and allows it to automatically follow the movement of the item being measured.

• Cable material: SUS304 stainless steel with nylon coating.
• Diameter: 0.6 mm.
• Breaking load: 16 kg.
• Initial spring force: maximum 700 g.
• Maximum speed: 1,000 mm/s.
• Typical lifespan: greater than 1 × 10⁶ cycles.
• Weight: less than 450 g.

To ensure a good mechanical life, the cable must be moved correctly following the output axis and must be prevented from permanently rubbing against edges or other machine elements.

The DLE-S is designed primarily for machinery, test benches, and protected industrial facilities.

• Operating temperature: 0 … 60 °C.
• Working humidity: 35 … 90 % HR, non-condensing.
• Storage temperature: -20 … +70 °C.
• Protection: IP50 only on the encoder housing.
• Vibration: max. 10g; 10 … 55 Hz / 1.5 mm; X, Y and Z axes; 2 hours.
• Shock: 20 g for 11 ms.

IP50 protection should be given special consideration when the sensor is used in civil engineering, railway, naval or industrial applications where dust, water, condensation or direct exposure to the elements may be present.

The DLE-S reference identifies the resolution and type of output electronics.

• DLE-S-10-1P / DLE-S-10-1L: 1 mm/pulse.
• DLE-S-10-05P / DLE-S-10-05L: 0.5 mm/pulse.
• DLE-S-10-02P / DLE-S-10-02L: 0.2 mm/pulse.
• DLE-S-10-01P / DLE-S-10-01L: 0.1 mm/pulse.
• DLE-S-10-004P / DLE-S-10-004L: 0.04 mm/pulse.

The suffix P Identify the push-pull output and the suffix L the TTL line driver version.

For example, DLE-S-10-01L It corresponds to a sensor with a travel of 1,000 mm, resolution of 0.1 mm/pulse —10 pulses/mm— and TTL line driver output powered by 5 VDC.