Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2006-04-11
2006-04-11
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
Reexamination Certificate
active
07027935
ABSTRACT:
A sample dispensing apparatus is realized which can detect a dispensing abnormality occurred during the sample dispensing operation regardless of the type and the extent of the abnormality. A pressure sensor is connected to a dispensing flow passage system, including a sample probe and a dispensing syringe, and a plurality of output values of the pressure sensor during the sample dispensing operation are taken in. A multi-item analysis (based on the Mahalanobis distance) is carried out by using, as items, the plurality of taken-in output values of the pressure sensor. Whether the dispensing is normally performed or not is determined by comparing an analysis result with a threshold. A highly reliable determination result is obtained in spite of variations of sensitivity of the pressure sensor.
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Japan Standard Association, Quality engineering application course, Technical development in MTS system, Jun. 20, 2002.
Kambara Katsuhiro
Shimase Akihiro
Tobita Tomoyuki
Uchida Hiroyasu
Hitachi High Technologies Corp.
Mattingly ,Stanger ,Malur & Brundidge, P.C.
Nghiem Michael
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