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Farm Machinery
Workshop Projects
3 position electric proportional joystick
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<blockquote data-quote="335d" data-source="post: 4903832" data-attributes="member: 13498"><p>It all depends what you are trying to do. You don’t need position feedback for all applications. Just a solenoid valve which will work of a PWM signal which you can drive and program via a £20 arduino. Clutch valve on a 40 series sldp works this way. They don’t actually know the position of the solenoid valve, hence why you have to calibrate them every now and then. If it’s for something more critical used in a lifting application, the position control may be required, but again some systems, albeit not very good ones had simple proportional control with no valve position feedback. Matbro TR250 ITL with apitech hydraulics as an example.</p></blockquote><p></p>
[QUOTE="335d, post: 4903832, member: 13498"] It all depends what you are trying to do. You don’t need position feedback for all applications. Just a solenoid valve which will work of a PWM signal which you can drive and program via a £20 arduino. Clutch valve on a 40 series sldp works this way. They don’t actually know the position of the solenoid valve, hence why you have to calibrate them every now and then. If it’s for something more critical used in a lifting application, the position control may be required, but again some systems, albeit not very good ones had simple proportional control with no valve position feedback. Matbro TR250 ITL with apitech hydraulics as an example. [/QUOTE]
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3 position electric proportional joystick
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