Thermal Sensor and Load Sensor

[Andrew W. Macfadyen]

Much easier to use strain gauges directly  fitted to the engine mount
brakets but filtering out the noise would be a major problem.
An easy  way of checking the health of individual cylinders is to monitor
the exhaust temps  as the enter the manifold this is standard preactice
on large marine engines..

goflo at pacbell.net wrote:

> bamcknig at postoffice.syspac.com wrote:
>
> > another torque sensing system is to put a load sensor under one
> > engine mount.  This can be a hydraulic cylinder(single cup wheel
> > cylinder)  with a pressure sensor attached.  One mount becomes the
> > pivot.  The cylinder is mounted tangent to a circle whose center is
> > the pivot.
>
> A hydraulic scheme would be fairly well damped, but it occurs to me
> that a low viscosity fluid (air?), a fast pressure sensor (MPX####),
> and a crank pos sensor might resolve the torque impulses from the
> individual cylinders. One can imagine uses for such info.
>
> Regards, Jack