>>14345969Great care must be taken on some of the most innocuous things, ionizers are used to neutralize the effects static attraction or repulsion has as this will invalidate the measurements.
They are used in enclosed compartments as the wind generated by your breath affects the reading.
Knowing your local gravitational acceleration is needed as are the positions of the sun and moon.
Operators must be monitored for mood as thinking heavy thoughts is suspected to generate fluctuations in readings.
