How to program a distance adjustent with a Laser sensor and a pressure valve

[ManuelP.]

Hallo,

I'm looking for a solution to adjust a pneumatic monostable cylinder via a laser sensor and a pressure valve.

The Laser sensor and the pressure valve has a dc signal as an output/input. The position of the cylinder is controlled by the laser sensor and the pressure valve schould adjust the pressure as needed to get the cylinder in position .

Sample:

The cylinder schould be 5mm extended from the initial position. If a force is on the cylinder rod the pressure valve schould be able to rise the pressure in the cylinder so that the 5mm rod location stays approximately constant.

Thank you for some suggenstions!

Kind regards

Manuel

[DLabview · Accepted solution]

I guess you could use a system whereby the laser sensor outputs when it receives the laser beam.

Something like this:

Laser detected ==> move in first direction

Laser detected (later) ==> move in the other direction

Laser detected (later) ==> move in first direction

..........

So that it toggles between the two states.

Or if it is possible, you could simply output different laser intensities to represent different values.

You could get the dc signal from the pressure valve, translate it into a numeric value, set a threshold (or a lower and upper threshold might be better) where the system is stable and do some coding to ensure that the valve keeps the pressure within the threshold.

The rest I think gets too in depth, and I guess that it is up to you from that point 😛

Cheers

David