Patent ID: 6771091
Filing Date: 2004-08-03
Classification: G01K

Abstract:
A method for elevated sample temperature measurement, a method comprising:heating a sample to a sample temperature, T; moving a probe from a first position to a second position, wherein the first position is proximate to a reference plate held at constant temperature, T0, and the second position is proximate to the sample, and T is greater than T0; measuring a contact potential difference of the sample, VCPDS, with the probe being held in the second position for a measuring time, &Dgr;tmeasure, sufficiently short to prevent substantial heating of the probe; returning the probe to the first position; measuring a contact potential difference of the reference plate, VCPDR; and determining a difference &Dgr;VCPD=VCPDSâˆ’VCPDR as a measure of a sample contact potential at T.