Multi-parameter rapid detection method and equipment for water quality of household drinking water

Abstract

The invention discloses a multi-parameter rapid detection method and equipment for a water quality of household drinking water. With the adoption of a method combining test paper and a color sensor, in a sealed and dark condition, a stable light source emits white light to irradiate test paper to be detected; the test paper reflects the light of the color of the test paper to the color sensor; the color sensor converts a light signal into a pulse count; the pulse count is output to a single chip microcomputer and is processed by the single chip microcomputer; a database established through a standard reagent experiment is called; and a chloride ion concentration and a pH value of water can be detected by using a least value approximation algorithm. The water is converted to be a variable resistor by using an electrode through a voltage dividing, following and amplifying circuit; a voltage analogue quantity is converted into a digital quantity by using an A / D (Analogue / Digital) converter; and the digital quantity is transmitted to the single chip microcomputer for processing, so that the conductivity of the water is detected. The multi-parameter rapid detection method and equipment provided by the invention can be used for detecting the household drinking water; and the multi-parameter rapid detection equipment has a function of detecting various parameters, such as the chloride ion concentration, the pH value and the conductivity. The multi-parameter rapid detection equipment is simple in circuit, intelligent and accurate.

Description

technical field [0001] The invention relates to the field of water quality detection, in particular to the detection of household drinking water quality, specifically a rapid detection method for detecting multiple parameters including chloride ion concentration, pH value and electrical conductivity in household drinking water and testing equipment. Background technique [0002] With the development of society, people have paid more and more attention to the health of drinking water, and now people have certain doubts about whether the water quality is qualified. At present, there are almost only single-parameter test solution boxes or testing pens available on the market for household water quality testing, while multi-functional water quality testing instruments are mostly large and expensive laboratory instruments for laboratory research or some aquaculture. The water quality detector used in aquaculture adopts the photoelectric colorimetric principle of spectrophotometr...

AI Technical Summary

Problems solved by technology

This method uses human eyes to identify certain errors, and it needs to be compared with the color card, which is relatively complicated

Images