ABSOLUTE PROPERTY MEASUREMENT WITH AIR CALIBRATION
摘要
An instrument and method for providing accurate and reproducible measurement of absolute properties of a material under test without using conductivity or crack calibration standards. The instrument has a sensor designed to minimize unmodeled parasitic effects. To accomplish this, the sensor has one or more of the following features: dummy secondary elements located at the ends of a primary winding meandering, setting back of the sensing element from a connecting portion of the primary winding, or various grouping of secondary elements. The sensing elements of the sensor can be connected individually or in differential mode to gather absolute or differential sensitivity measurements. In addition, the instrumentation is configured such that a significant portion of the instrumentation electronics is placed as close to the sensor head to provide independently controllable amplification of the measurement signals therein reducing noise and other non-modeled effects.
申请公布号
WO9922231(A1)
申请公布日期
1999.05.06
申请号
WO1998US22900
申请日期
1998.10.28
申请人
JENTEK SENSORS, INC.;GOLDFINE, NEIL, J.;SCHLICKER, DARRELL, E.;WASHABAUGH, ANDREW
发明人
GOLDFINE, NEIL, J.;SCHLICKER, DARRELL, E.;WASHABAUGH, ANDREW