4 ms·
And to those curious on how it senses it, they literally stick a microphone in the engine calibrated for the ping (knock) frequency.
by fgonzag 10y ago
And to those curious on how it senses it, they literally stick a microphone in the engine calibrated for the ping (knock) frequency.
- sdwisely 10y agothat actually sounded like such a low tech solution that I wasn't sure if it was some kind of joke that was going over my head. Thanks for sharing, that's actually really fascinating. the patent for anyone interested: https://www.google.com/patents/US4040294 https://www.google.com/patents/US4040294