An electro pneumatic converter with low hysteresis characteristic

A converter, electro-pneumatic technology, applied in the direction of magnetic objects, electrical components, circuits, etc., can solve the problem that electro-pneumatic converters are difficult to adjust precisely, and achieve the effect of low hysteresis characteristics
CN103166398AActive Publication Date: 2013-06-19ROTORK YTC LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ROTORK YTC LTD
Publication Date
2013-06-19

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Abstract

An electro pneumatic converter with low hysteresis. The electro pneumatic converter includes a first stator, a bent plated second stator, and a rotor. The first stator is equipped with a first stator gap and partially wrapped with a coil. The second stator is equipped with a second stator gap on one side end and a permanent magnet which magnetizes the rotor, on the other side. The first and second stators are installed side by side. The rotor's one side is installed near the permanent magnet, and the other end is installed towards the first and second stator gaps, and in between the first and second stator gaps. The above mentioned rotor will be moved according to electric current.
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Description

technical field

[0001] The invention relates to an electro-pneumatic converter for a pneumatic position controller, in particular to an electro-pneumatic converter with low hysteresis characteristics. Background technique

[0002] The electro-pneumatic converter is a device that converts electric current into mechanical rotational force, and finally into air pressure.

[0003] Figure 1a and 1b The structure and operating principle of a conventional electropneumatic converter are shown. Such as Figure 1a As shown, the magnetic field generated by the current flowing in the coil 4 forms a closed magnetic circuit through the moving piece 1 and the stator 5 . Such as Figure 1b As shown, the magnetic field generated by the magnet 3 forms a closed magnetic circuit through the stator 5 . Due to the interaction between the magnetic field generated by the coil 4 and the magnetic field generated by the magnet 3 , a force to rotate around the hinge 2 is generated in the movable m...

Claims

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