Linear displacement sensor for non-contact displacement measurement

Today, manufacturers of plastic processing equipment use a low-cost linear linear potentiometer for displacement measurement and control, but this equipment will experience severe wear and tear after a long period of use, resulting in linear deviation, causing users The consequence is that it costs a lot of money to repair and suffer serious losses from production stoppages. Balluff's engineers have developed the Micropulse-AT linear displacement measurement control system that is optimized for cost savings. The new Balluff Micropulse-BTL 5 unit has a rounded housing. The resolution of this displacement sensor is ≤10mm, and the repeating positioning accuracy is ≤20mm when the measuring range is 50-1500mm.

The Micropulse-AT unit with IP67 enclosure rating is placed in an anodized aluminum hermetic housing. In this way, the system can be protected against dust, water and vibration and shock. This rounded housing and its many advantages provide ease and flexibility for installation. It can be attached to any part of the machine. As long as the vertical distance between the positioning magnet and the sensor does not exceed 8 mm, the possibility of damage to the displacement measuring system due to lateral force and signal interruption can be eliminated. The magnet can be placed with a vertical deviation of ±5 mm. Balluff displacement sensors can be fixedly mounted using standard components commonly used on the market. Because the displacement sensor has large mounting tolerances, no time-consuming structural modifications and fine adjustments are required. The Micropulse-AT unit with two positional magnet position sensors is particularly cost effective and can measure two axial movements with one measurement system without additional investment.

Use an M12 plug cable for electrical connections. The Micropulse-AT unit operates at 24V with a 10V analog output or a P110 digital pulse interface for uninterrupted data transfer. It can match all the common processing cards of Balluff and the control devices of various manufacturers, and can transmit 500m signals safely. Companies using their own control and signal processing devices can also achieve high-resolution pulse interface analysis results.

Balluff's Micropulse-BTL 5 sensor can be used as a bus system. For example, the Profibus DP system is available in a multi-plug version without a dispenser. In this case the busbar wires are separated from the supply voltage. With Profibus and Canopen systems, up to 4 positions of velocity data and diagnostic data can be transmitted to the control unit with a resolution of 5 mm and a speed of 0.1 mm/s. In addition, in cooperation with Wago, the Balluff Micropulse-BTL 5 unit can be connected to all busbar systems commonly found on the market. This connection is achieved by a 750 series terminal with an integral ASIC device for the pulse interface and a corresponding bus coupler.

There is also a Micropulse-AT device with a digital pulse interface/integrated protocol (DPI/IP) pulse interface, a protocol for direct data exchange between the control unit and the displacement sensor. The benefits of this protocol are: simple automatic parameterization, identifiable damaged or replaced measurement systems and improved machine safety.

Extension Sockets

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