pH measurement system using glass pH sensor
First Claim
1. A pH measurement system using a glass pH sensor, comprising:
- a power supply applying a voltage to the glass pH sensor through a resistor, wherein the resistor has a resistance of at least ten times less than an equivalent internal resistance of the glass pH sensor;
a detector detecting an output voltage of the glass pH sensor; and
a calculator calculating a pH of a solution based on the detected output voltage.
1 Assignment
0 Petitions
Accused Products
Abstract
A pH measurement system using a glass pH sensor includes a power supply applying a voltage to the glass pH sensor through a resistor; a detector detecting the output voltage of the glass pH sensor; and a calculator calculating the pH of a solution based on the detected output voltage. The resistor provides a resistance of at least ten times less than the equivalent internal resistance of the glass pH sensor. The pH measurement system can improve the response rate by reducing the time constant depending on the dynamic characteristics of the glass pH sensor, and it is possible to diagnose whether the pH measurement system is defective or not by calculating the equivalent internal resistance and the supply voltage of the glass pH sensor.
65 Citations
14 Claims
-
1. A pH measurement system using a glass pH sensor, comprising:
-
a power supply applying a voltage to the glass pH sensor through a resistor, wherein the resistor has a resistance of at least ten times less than an equivalent internal resistance of the glass pH sensor; a detector detecting an output voltage of the glass pH sensor; and a calculator calculating a pH of a solution based on the detected output voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification