Technology advances in the field of temperature measurement have led to a huge variety of sensors and measuring instruments now being available for making accurate measurements at relatively low costs. This article takes a``back to basics'' look at three of the most popular temperature sensor technologies and offers advice on how to avoid the many pitfalls and traps that often destroy the accuracy of a temperature measuring system.
A new shear apparatus for small angle neutron scattering (SANS) measurements Rev.Small angles, 30' or less, cannot be measured with sufficient accuracy by a goniometer. The newly developed small-angle measurement apparatus (SAM) described here is capable of measuring angles as small as 6' with a precision of 2%. Theoretical calculations are compared with experimental results derived from both SAM and the goniometer. While this technique was developed for application to polished silicon wafers, it can be used to measure small angles on any reflecting surface. 1
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