Very impressive Charles and Reinoud. Keep up the great work gentlemen!
--MAO
On 18-May-15, at 8:58 pm, C. Pond wrote:
Thanks, Reinoud. The function of the second stationary magnet
positioned
below the moving magnet is to act as a kind of flux booster. It
adds flux
density and intensity to the entire magnetic circuit, like a big
second
battery adding power to a motor already connected to a first smaller
battery. The combination of the two coils, the moving magnet and this
stationary "power magnet" completely saturates the flux gap, so
adding more
magnetism does nothing more. Adding this second magnet gave the
tactuator
such a lot more power that it was shocking; like day and night. So,
between
the two coils resonating and moving the "moving magnet" and the "power
magnet", the force generated by the actuator is very high. It can
generate
more force than the R2 optacon's entire 100-pin bimorph-based
display. and
each actuator is in overdrive when using 200mV. The impedance of each
actuator I haven't measured or calculated; their static resistance is
meaningless, but it is about 1.6 to 2 ohms. I think the
electromagnetic
oscillating field does not move the moving magnet; it moves the
flux, which
in turn moves whatever is in the flux field. Like waves of water in
turn
moving a boat afloat upon the watery waves. The boat does not move
itself;
the waves of water move the boat.
Charles
-----Original Message-----
From: reinoud
Sent: Monday, May 18, 2015 6:33 PM
To: optacon-l@xxxxxxxxxxxxx
Subject: [optacon-l] Re: Reinoud, how many coils and their
relationship to
the permanent magnet?
