公开(公告)号：EP1362238B1

公开(公告)日：2006-06-28

申请号：EP02705820.5

申请日：2002-01-15

Applicant: ABBOTT LABORATORIES

Inventor： WANG, Jianjun ,  MONDIEK, David, A. ,  BORUSZEWSKI, Dennis, V. ,  GUNTRIP, David, P.

IPC: G01N33/00 ,  G01D18/00

CPC classification number: A61L2/208 ,  A61L2/28 ,  A61L2202/14 ,  G01D18/00 ,  G01N27/4163 ,  G01N31/16 ,  G01N33/0006 ,  G01N33/0036 ,  Y10T436/10

Abstract: A method and apparatus for calibrating a sensor for determination of the concentration of a sterilant, e. g., hydrogen peroxide vapor, in a sterilization system. This invention provides a method for calibrating a sensor that is used for measuring the quantity of a sterilant in a system for delivering the sterilant, the method comprising the steps of: (a) generating reference calibration data, the reference calibration data showing a mathematical relationship between a measurable parameter, e. g. voltage, and a quantity of the sterilant, e. g., parts of sterilant per million parts of air (ppm), for a plurality of sensors; (b) generating sensor calibration data, the sensor calibration data showing a mathematical relationship between the measurable parameter and the quantity of the sterilant for an individual sensor; and(c) normalizing the sensor calibration data to compensate for the difference between the measurable parameter for the reference calibration data and the measurable parameter for the sensor calibration data, whereby data obtained by the individual sensor can be used to accurately determine the quantity of sterilant in the system.

公开(公告)号：EP0890098A2

公开(公告)日：1999-01-13

申请号：EP97916176.0

申请日：1997-03-21

Applicant: Abbott Laboratories

Inventor： WANG, Jianjun

IPC: G01N29

CPC classification number: G01N29/075 ,  G01N29/036 ,  G01N29/11 ,  G01N29/225 ,  G01N29/30 ,  G01N2291/015 ,  G01N2291/2695

Abstract: The method includes the steps of providing a means for generating and receiving ultrasonic waves, a processing unit, and a means for agitating the flowable product. The means for generating and receiving ultrasonic waves is placed in ultrasonic contact with the flowable product and ultrasonic waves are directed into the flowable product. Ultrasonic waves are received using the means for gnerating and receiving ultrasonic waves and the received waves are transmitted to the processing unit where they are processed by establishing respective vectors for a plurality of reflective contents of the flowable product and by comparing the respective vectors to a predetermined, acceptable statistical range of vectors. The system includes a means for conveying a flowable product where the means for conveying includes an agitating means for agitating the flowable product.