Originally Posted by
Mike_New
Paul,
It would seem that maybe you would have the abillity and equipment to persue an experiment I have been
considering for some time now. There is always discussion on the type of mat to use (and platters for that matter)
My idea is this: to actually try to measure the amount of reflected/transmitted energy through the record material.
This could be done using a second arm running on a perfectly smooth surface, I have used a CD (recorded side) on my single SME V
and the surface noise is very low. I guess a piece of thin plate glass would be better. I know this is what we used to check the surfaceometers (which used a MM cartridge) when I worked at AWRE in the metrology section for a while. Now the second arm could be connected to the required electronics and a speaker, whilst the first arm is actually reading the track but not being output to a speaker. What do you think?
With some extra effort an annulus (annuli?) could be made so that various positions on the record could be measured.
This way even the effectiveness of centre weights and maybe bearings could be measured.
Effective sonic connection of the plain medium to the record could be a problem.
The ultimate perhaps would be a laser sensor.
PS: If you think this is off topic Marco then move it to another thread.
Trade: The Right One
Posting Permissions
Reply With Quote