公开(公告)号：JPH10253572A

公开(公告)日：1998-09-25

申请号：JP7054697

申请日：1997-03-07

Applicant: TOA ELECTRONICS

Inventor： HARADA YASUYUKI ,  KATO AKIHIKO

IPC: G01N27/30

Abstract: PROBLEM TO BE SOLVED: To dispense with setting of a value of calibration or correction at every time of replacement of an electrode and to enable free and proper use of electrodes for different purposes, by providing a storage means for the information on a measuring electrode in the measuring electrode or in a cable or a connector for connecting the measuring electrode to a device main body. SOLUTION: A type name and a serial number of an electrode given at the time of manufacture thereof are inputted as the information (data) on the electrode to a memory in the electrode 10, for instance, and calibration data are written therein at the time of inspection of the electrode. A means for reading and storing the information stored in the memory of the measuring electrode 10 is provided in a device main body 20 and also a means for writing the fresh calibration data and others in the memory of the measuring electrode 10 is provided therein. The device main body 20 corrects a pH value by computation on the basis of the calibration data read in and a potential obtained from a pH sensing part 11 of the measuring electrode 10 and displays it as a measured pH value. In a measuring device equipped with a printer, printing can also be executed as occasion demands.

公开(公告)号：JP2000111506A

公开(公告)日：2000-04-21

申请号：JP28576598

申请日：1998-10-07

Applicant: TOA ELECTRONICS

Inventor： HARADA YASUYUKI ,  MURAYAMA JIRO ,  HAKETA YASUSHI ,  SATO TETSUYA ,  KATO EIJI

IPC: G01N27/414 ,  G01N27/06 ,  G01N27/07 ,  G01N27/416

Abstract: PROBLEM TO BE SOLVED: To provide a measuring device with memory for automatically recognizing such information as the type and manufacturing number of an electrode without any need for setting a calibration or correction value each time when the electrode is replaced using a device body and for freely using the electrode for each application. SOLUTION: A measuring device 1 is provided with a device body 20 and a measurement electrode 10. An identification means for identifying the measurement electrode 10 is provided in the measurement electrode 10 or in a cable or a connector for connecting the measurement electrode 10 to the device body 20, and a storage means 21 for recognizing the identification means of the measurement electrode 10 and storing information regarding the measurement electrode 10 is provided in the device body 20.

公开(公告)号：JP2000074868A

公开(公告)日：2000-03-14

申请号：JP26231298

申请日：1998-08-31

Applicant: Toa Electronics Ltd ,  東亜電波工業株式会社

Inventor： HARADA YASUYUKI

IPC: G01N27/26

Abstract: PROBLEM TO BE SOLVED: To shorten a stabilization determining processing time, and to shorten a calibration time as a result thereof.
SOLUTION: In this calibration method for a measuring instrument for conducting stabilization determination for a measured value and for conducting calibration processing, (a) stabilization determining processing with prescribed intervals is carried out based on a measured data even at the time of measurement, (b) calibration processing is carried out immediately at the time of calibration when stabilization is already determined as a result of the stabilization determining processing, and the stabilization determining processing is continued successively when an unstabilized condition is determined, to carry out calibration processing when stabilization is determined.
COPYRIGHT: (C)2000,JPO

Abstract translation: 要解决的问题：缩短稳定化确定处理时间，并缩短校准时间作为其结果。 解决方案：在用于进行测量值的稳定性确定和进行校准处理的测量仪器的校准方法中，（a）即使在测量时也基于测量数据执行具有规定间隔的稳定化确定处理，（b ）校准处理是在稳定化已被确定的稳定化确定处理之后立即执行的，并且当确定不稳定条件时，稳定判定处理继续进行，以便在确定稳定时执行校准处理 。

公开(公告)号：JPH10142193A

公开(公告)日：1998-05-29

申请号：JP30209096

申请日：1996-11-13

Applicant: TOA ELECTRONICS

Inventor： GOTO RYOZO ,  SASAKURA MITSURU ,  HARADA YASUYUKI

IPC: G01N27/416

Abstract: PROBLEM TO BE SOLVED: To simpl and stably measure a concentration of each substance related to a biological reaction, a biochemical reaction or a chemical reaction with the use of common electrodes and apparatus without using special electrodes and apparatus for each substance. SOLUTION: A sample solution including a substance to be measured is borough into contact with a film 7 or column holding a labile substance which generates a pH change through a biological, biochemical or chemical reaction with the substance to be measured. A potential difference of two pH-sensing electrodes 5, 6 soaked in the sample solution before and after the touch in the liquid junction state is measured. The obtained potential difference is compared with a potential difference preliminary measured for a solution including the substance to be measured of a known concentration. A concentration of the substance to be measured in the sample solution is obtained in the method.