to measure detonation in the octane engine.
|Left: Springless Bouncing Pin
As detonation occurs, the diaphragm
At right: Micrometer Head Bouncing Pin:
Many designs included a micrometer
in which the inner pin is fitted with a
coil of fine wire. As the inner pin bounces
up and down the coil cuts the lines of
force of a fixed electro-magnet attached
to the barrel of the pin.
Left: Micrometer Head Bouncing Pin with
|A condenser plate is attached to the
inner pin of the micrometer head.
As the pin bounces the capacity of the
condenser changes because the space
between the movable plate and the
fixed plate changes.
Right: Micrometer Head Bouncing Pin
Next: OLD INSTRUMENTS
Octane Home Page
Page created November 8, 2000