Chris, these two articles will not do
much to help you in the airplane because of the outside noise, but they will
help you understand how to make one if you want it.
http://autospeed.com/cms/A_0348/article.html
Bill B
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Chris Barber
Sent: Friday, March 04, 2011 9:43
AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Knock sensor
and indicator
Since I have had an issue with detonation, I
am contemplating adding a knock sensor. What do y'all know about
this addition. I do not believe Tracy's EM
has a provision for a reading, so, what might be a good route to take.
The brief research I have done shows different frequencies, types
etc. What would be correct for a rotary, both as to a sensor and
something to notify me in the cabin? Thanks. I am about to
replace ALL my apex seals and soft parts and hopefully finally lick this
issue....hopefully....did I mention hopefully...determinably...persistent?
(heck, I wasn't planning anything else this weekend <g>)
Chris