Quote:
Originally Posted by instarx
I don't know what Diesel_John thinks, but the information posted on the manufacturer's own site says the meter measures vibration:
For easy engine revolution measurement on 4-cycle diesel engines by clamping the piezo-electric type vibration detector to the fuel injection pipe. |
Ugh, its a case of manual being written by someone in another country. The manufactures site is WRONG. Tell them to re-evaluate that statement and run it by their engineers to get it fixed.
Maybe it got off in a translation or something but that is not the way these transducers work.
If the meter measured vibration it wouldn't work at all for the application because of the fact that there are tons of little vibrations from just about everything. Translation could easily render the pulse produced by the pump as a vibration. If the tiny bit of tube expansion that is picked up by the transducer could be considered a vibration it is still not a good word to use to describe the event. Hitting a gong causes vibrations. A tuning fork makes vibrations. The pulse event from an injector is just that. A pulse event. Not a vibration.
I went to school for this stuff and worked as a diesel mechanic some 15 20 years ago.
I have my doubts that you could pull off a signal good enough to calculate fuel usage from one of those pulse events.