Title:
自動分析装置
Document Type and Number:
Japanese Patent JP5865633
Kind Code:
B2
Abstract:
An automatic analyzer for judging normal and abnormal of the dispensing operation for detecting abnormal condition of dispensing operation caused by various causes to execute an analysis with high reliability with no requirement of great amount of reference data is realized. A plunger 66 is moved downwardly in predetermined distance while the tip of the sample probe 15 is immersed in a sample to suck the sample into the probe. A pressure sensor 26 detects the pressure fluctuation during the suction operation, an AD converter converting the signals into digital signals to send the signals for a signal processing unit 76. The signal processing unit 76 extracts feature variables data of a suction waveform to calculate the Statistical distance D from normal group data. The Statistical distance D an a threshold value th are compared with each other, it is judged that there is an abnormality in the suction operation when the Statistical distance D is more than or equal to the threshold value th. When the Statistical distance D is smaller than the threshold value th, an operation is proceeded to a discharge operation. After the discharge operation, the values of the feature variables of the discharge waveform are extracted, and the Statistical distance D from the normal group data is calculated. When the Statistical distance d D is more than or equal to the predetermined threshold value th, it is judged that there is an abnormality.
Inventors:
Kung Fu Yamazaki
Masaharu Nishida
Kumiko Kamihara
Hideto Tamezomi
Masaharu Nishida
Kumiko Kamihara
Hideto Tamezomi
Application Number:
JP2011190664A
Publication Date:
February 17, 2016
Filing Date:
September 01, 2011
Export Citation:
Assignee:
Hitachi High-Technologies Corporation
International Classes:
G01N35/00
Domestic Patent References:
| JP2004125780A | ||||
| JP2006300843A | ||||
| JP2009210352A | ||||
| JP2009210351A | ||||
| JP2006300814A |
Foreign References:
| WO2010038546A1 |
Attorney, Agent or Firm:
Kaichi International Patent Office
Kasuga Toshiaki
Inoki Yuichi
Kasuga Toshiaki
Inoki Yuichi