  In this article we propose an alternate model for the so called {\it
protective measurements}, more appropriately {\it adiabatic measurements} of a
spin 1/2 system where the {\it apparatus} is also a quantum system with a {\em
finite dimensional Hilbert space}. This circumvents several technical as well
as conceptual issues that arise when dealing with an infinite dimensional
Hilbert space as in the analysis of conventional Stern-Gerlach experiment. Here
also it is demonstrated that the response of the detector is continuous and it
{\it directly} measures {\em expectation values without altering the state of
the system}(when the unknown original state is a {\it nondegenerate eigenstate
of the system Hamiltonian}, in the limit of {\em ideal} adiabatic conditions.
We have also computed the corrections arising out of the inevitable departures
from ideal adiabaticity i.e the time of measurement being large but finite. To
overcome the {\em conceptual} difficulties with a {\it quantum apparatus}, we
have simulated a {\it classical apparatus} as a {\em large} assembly of
spin-1/2 systems. We end this article with a conclusion and a discussion of
some future issues.
