The sensitivity of this setup can be made very high and can
even be increased by choosing a larger distance between
mirror and optoelectronic sensor as long as it is guaranteed
that the laser spot hits the PSD at maximum torque. With
this setup the influence of the measuring equipment onto the
measuring object is reduced to a minimum and the only
parameters to be considered for setting the measuring range
are the well known characteristics of the spring element.
The sensor system as described above offers the following
technical data: