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Flir E40 focus add damping oil

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layws:
My flir E40 not new and focus too loose.
I add damping oil to the focus foam. I do not know is right.

The focus damping very good now.


SeanB:
You need a high kilopoise oil, which is an oil ( most commonly a silicone oil) that is very thick, and which is still going to be very thick from around -20C to around 70C for there, or use a silicone grease. Very commonly used on optics as a damper.

layws:

--- Quote from: SeanB on January 26, 2017, 08:00:39 pm ---You need a high kilopoise oil, which is an oil ( most commonly a silicone oil) that is very thick, and which is still going to be very thick from around -20C to around 70C for there, or use a silicone grease. Very commonly used on optics as a damper.

--- End quote ---

I check the datasheet as silicon oil.
  Operating temperature:0-120C
   Torque value ?20gf.cm

SeanB:
Good enough, will work there. You get some crazy high viscosity oils used as motor drive damping, they were common on old Micropolis hard drives as stepper actuator damping in a mass damper on the shaft end. No effect in slow, but rapid stepping was damped down quite effectively and it reduced resonances in the drive head assembly quite well.

layws:
Using other mode, very good than the damping oil.  >:D

Please see the attached picture.

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