JPS6413447A - Ion selection electrode processing system - Google Patents

Ion selection electrode processing system

Info

Publication number
JPS6413447A
JPS6413447A JP62170801A JP17080187A JPS6413447A JP S6413447 A JPS6413447 A JP S6413447A JP 62170801 A JP62170801 A JP 62170801A JP 17080187 A JP17080187 A JP 17080187A JP S6413447 A JPS6413447 A JP S6413447A
Authority
JP
Japan
Prior art keywords
ion
photocoupler
signal
analog signal
processing system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62170801A
Other languages
Japanese (ja)
Inventor
Norikazu Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62170801A priority Critical patent/JPS6413447A/en
Publication of JPS6413447A publication Critical patent/JPS6413447A/en
Pending legal-status Critical Current

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  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To improve the reliability of an ion selection electrode signal processing system by arranging an ion detector which has ion selectivity at the gate electrode of a MOS transistor (TR), and converting a voltage obtained by the ion detector into a pulse train signal and inputting it through a photocoupler. CONSTITUTION:The titled system is equipped with an ISFET detection part 1 which has an ion-selective organic film 12 on an insulating gate 11, a VF conversion part 2 which digitizes an analog signal, the photocoupler 3, etc. Then, the detection part 1 detects an analog signal proportional to the ion concentration in a sample and a conversion part 2 converts the input analog signal into a serial pulse train. Then the digitized signal is inputted to a reception-side circuit 4 and a CPU 5 through the photocoupler 3. Then the signal is digitized to eliminate noise generation and the photocoupler 3 insulates the photodetection part 1 from the circuit 4, etc., electrically.
JP62170801A 1987-07-08 1987-07-08 Ion selection electrode processing system Pending JPS6413447A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62170801A JPS6413447A (en) 1987-07-08 1987-07-08 Ion selection electrode processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62170801A JPS6413447A (en) 1987-07-08 1987-07-08 Ion selection electrode processing system

Publications (1)

Publication Number Publication Date
JPS6413447A true JPS6413447A (en) 1989-01-18

Family

ID=15911600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62170801A Pending JPS6413447A (en) 1987-07-08 1987-07-08 Ion selection electrode processing system

Country Status (1)

Country Link
JP (1) JPS6413447A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02280047A (en) * 1989-04-21 1990-11-16 Nec Corp One-chip semiconductor biosensor
CN103808406A (en) * 2012-11-14 2014-05-21 中国石油天然气股份有限公司 Oil-gas pipeline vibration monitoring method and device based on vibrating wire type sensor
JP2016105093A (en) * 2010-06-30 2016-06-09 ライフ テクノロジーズ コーポレーション Array column integrator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201846A (en) * 1981-06-05 1982-12-10 Horiba Ltd Ion concentration measuring apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201846A (en) * 1981-06-05 1982-12-10 Horiba Ltd Ion concentration measuring apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02280047A (en) * 1989-04-21 1990-11-16 Nec Corp One-chip semiconductor biosensor
JP2016105093A (en) * 2010-06-30 2016-06-09 ライフ テクノロジーズ コーポレーション Array column integrator
CN103808406A (en) * 2012-11-14 2014-05-21 中国石油天然气股份有限公司 Oil-gas pipeline vibration monitoring method and device based on vibrating wire type sensor

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