Why Do We Need Sensor Cylinders?

The function of smart cylinders, pneumatically- or hydraulic-driven cylindrical tubes with incorporated placement discovery capability has enhanced as manufacturers aim to enhance performance through automation. Smart cylindrical tubes can utilise either discrete or continuous position picking up, giving suppliers choices, yet possibly leaving them with questions on which is ideal for their application.

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In this article, we will assess the advantages of constant placement sensors, as well as checklist the applications where this is the best fit.

Constant placement sensors supply near real-time setting responses throughout the whole stroke of the cylindrical tube making them the excellent choice for applications at the greater end of the control range. Closed-loop hydraulic systems can achieve innovative, vibrant control of movement throughout the whole cylinder stroke.

Position sensors are typically used if the application requires closed-loop servo cylinders, where the setting, velocity, speed, and slowdown of the cylinder have to be regulated. Closed-loop servo-hydraulics have been widely utilised in industrial applications, like steel handling, sawmills, as well as tire production, and extra lately in cylindrical tubes in off-highway tools.

Magnetostrictive direct position sensors are the most commonly utilised constant position sensing units in hydraulic cylindrical tubes. These sensing units are mounted right into the back end of the cylindrical tube. The sensing unit spots the position of a magnet connected to the piston, as well as provides an outright, continual setting signal.

The sensor is ranked to endure the complete pressure of the hydraulic system. Magnetostrictive innovation provides the benefit of being totally non-contact, indicating it needs no mechanical contact between the sensing unit, as well as the moving cylinder and is exempt to use and performance degradation. Furthermore, various electrical interface options are available, from basic analogue, 0-10V or 4 to 20mA, to high-performance industrial fieldbus user interfaces that use sophisticated performance.

Constant placement sensors also can be utilised in pneumatic Cylinders, Inc. While closed-loop servo cylinder with pneumatics isn’t as typical as hydraulics, there are circumstances where pneumatic cylinders require constant setting sensing capability. For instance, low-pressure pneumatic cylindrical tubes are occasionally utilised as touch probes or measurement probes, where the cylinder pole is prolonged up until it touches a part to be gaged or measured. In these scenarios, it is beneficial to be able to obtain constant placement comments, specifically when there is an irregularity in the determined component.

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