14 33 magnetic pneumatic proximity sensors 331

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: bH & Co. KG • FP 1110 3. Magnetic proximity sensors 3.2.4 Examples of application One of the most common fields of application for contactless magnetic proximity sensors is, as in the case of reed proximity sensors, position sensing with pneumatic cylinders. They can however be used for many other applications, similar to reed proximity sensors, refer to 3.1.4. 3.3 Magnetic-pneumatic proximity sensors 3.3.1 Function description A pneumatic valve is switched by means of a permanent magnet, thereby generating a control signal. a) b) Switching reed (1) Permanent magnet on piston (2) Flexible conduit (3) a) The proximity sensor is unactuated, a switching reed interrupts the air flow from 1. b) The switching reed is actuated by a magnetic field, the air flows from 1 to 2. Fig. 3.3.1: Principle of application of a magnetic-pneumatic proximity sensor for detection of cylinder positions © Festo Didactic GmbH & Co. KG • FP 1110 45 3. Magnetic proximity sensors 3.3.2 Technical characteristics Parameter Value Operating pressure range 400 – 600 kPa (4 – 6 bar) Signal pressure (supply pressure 500 kPa) 8 kPa (80 mbar) Switching accuracy ±0.2 mm Maximu...
View Full Document

This note was uploaded on 11/01/2012 for the course CHEMICAL 102 taught by Professor Jamesrodriguez during the Spring '12 term at Universidad Politécnica de Cartagena.

Ask a homework question - tutors are online