Wave winders are used to produce
a type of coil possessing low self-capacitance and therefore a high
self-resonant frequency. Essentially, it uses a high traverse
rate which causes gaps between the turns. This is sometimes called an
open or 'basket' weave. Also, each layer sits 'on top' of the
underlying one, rather than interlocking with individual turns. The net
result is decreased inter-turn and inter-layer capacitance.
The handwheel at the front of the winder sets the
width of the coil. The winder requires setting up by selection of four
gears which determine the weave pattern. It is normal to use either
Litz
wire or cotton/silk covered single strand wire. Plain enameled
magnet wire will not grip the bobbin or previous layers sufficiently.
Even then, it is best to coat the bobbin with a layer of impact adhesive
in order to get the first few turns to 'stick' properly.
See also ...
[↑ Producing Wound components]
[Conventional winder]
E-mail:
R.Clarke@surrey.ac.uk
Last modified: 2007 March 26th.