Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polarographic residual chlorine sensor

A residual chlorine and polarographic technology, applied in the field of polarographic residual chlorine sensors, can solve the problems of reduced sensitivity and reduced measurement current value, and achieve the effect of high-precision and high residual chlorine concentration measurement

Inactive Publication Date: 2013-07-03
SANYO ELECTRIC CO LTD
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, since the electrode reaction depends on its surface area, when the area of ​​the conductive material constituting the working electrode that is in contact with the water to be measured, that is, the electrode surface area becomes smaller, the measured current value is greatly reduced in proportion to the electrode surface area, and the sensitivity is reduced. The problem

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polarographic residual chlorine sensor
  • Polarographic residual chlorine sensor
  • Polarographic residual chlorine sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] Next, the polarographic residual chlorine sensor 1 according to one embodiment of the present invention will be described in detail based on the drawings. exist figure 1 Among them, the polarographic residual chlorine sensor 1 of the embodiment is equipped with, for example, a working electrode 2, a counter electrode 4, and a reference electrode 6 as electrodes immersed in the water to be measured 8 stored in the container 10 (for example, water in a swimming pool). The three-electrode polarographic residual chlorine sensor is provided with a measurement unit 12 and a calculation unit 14.

[0051] The working electrode 2 will be described in detail later, but gold is used as a conductive material constituting the working electrode 2 in Examples. The counter electrode 4 is made of platinum in the example, and the reference electrode 6 is made of silver or silver chloride in the example. In addition, platinum may be used as the conductive material of the working electr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a polarographic residual chlorine sensor capable of reducing the change over time of the electrode surface area of a working electrode. The polarographic residual chlorine sensor determiners the residual chlorine concentration by at least immersing the working electrode (2) and a counter electrode in the water to be measured, and measuring the current flow between the working electrode and a counter electrode caused by an oxidation-reduction reaction. The cross-sectional areas of a conductive material (16) constituting the working electrode perpendicular to the axial direction at different positions are the same shape, and are covered by a casing (17) in the manner of leaving axially two end faces, and an end face is immersed in the water to be measured.

Description

technical field [0001] The present invention relates to a polarographic residual chlorine sensor for measuring the concentration of chlorine, hypochlorous acid, hypochlorite ions, and other residual chlorine contained in water to be measured using a polarographic method. Background technique [0002] At present, water used in circulating baths, swimming pools, etc. is injected with agents such as sodium hypochlorite for sterilization. When the concentration of residual chlorine in the water is high, there is a fear of adverse effects on the human body, so the amount of residual chlorine is measured and monitored with a hypochlorous acid concentration measuring device using the DPD method or the polarographic method, The amount of residual chlorine was adjusted to a predetermined residual chlorine concentration. [0003] Generally, as shown in Patent Document 1, the measuring device of the residual chlorine concentration of the polarographic method includes a working electro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N27/48
CPCG01N27/30G01N27/3277G01N27/416G01N27/48G01N33/182
Inventor 铃木大辅山本哲也八重樫正宽
Owner SANYO ELECTRIC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com