Meter water quality

 

The invention relates to the field of sanitary hygiene and industrial ecology and can be used to determine the concentration of salts dissolved in water. Device for measuring water quality contains located in the housing of the generator AC signal from the connected sensor in the form of two electrodes, each of which one section facing the inside of the body, and another part comes out, the display unit, power supply, thermistor, connected to a generator, the memory blocks and comparing the measured signals included between the generator and the display unit, the memory unit has adjustment to zero, one of the electrodes is made annular, and the second in the form of a solid cylinder and placed inside the first annular gap between them, the gap filled with dielectric material, the generator is designed as automatic devices. Improved accuracy and sensitivity of measurements. 5 Il., table 2.

The invention relates to the field of sanitary hygiene and industrial ecology and can be used to determine the concentration of salts dissolved in water.

A well-known indicator of the quality of purification of water containing chamber is soup valves connected to the supply system and purified water source, respectively. Luggage purified water has a measuring capillary with a diameter of 1-3 mm, the bottom of which is made extender. While the chamber volume of the source water exceeds the total chamber volume of purified water and measuring capillary expander in 3-10 times the total volume of the measuring capillary with extender exceeds chamber volume of purified water at 1-5 times the volume of extender 20-25 times the volume of the measuring capillary (see RF patent №2073556, MKI B 01 D 65/00).

The disadvantage of this device is the lack of accuracy of measurements and the narrow range of monitored values.

It is known device for determining the quantitative characteristics of water types of condensate, which can be used in thermal power stations. The invention consists in the following: carry out simultaneous measurement of pH and conductivity of water samples followed by measuring pH and conductivity of water samples, the last N-cation column, all measurements are carried out with respect to temperature water samples and determination of water quality parameters is carried out by processing the measurements to the computer using the system of equations describing the ionic equilibrium in the original Pdet mobility in relation to different sources of water samples.

The closest to the technical nature of the proposed solution is an electronic control system auxiliary reverse osmosis device for cleaning liquid, comprising a housing formed by the base and cover, and two pairs of electrodes. At the base of the channel for the fluid, respectively, before and after treatment. Each electrode of the first pair has two sections, one of which is inserted in the first channel, and the other put into the case. Located in the first channel areas of electrodes installed at a distance from one another so that one of them is closer to the entrance channel, and the other closer to the exit. Each electrode of the second pair also has two sections, one of which is inserted in the second channel, and the other is missing inside of the case. Staying in the second channel areas of the electrodes are also located respectively near its entrance and exit. In case fixed printed circuit Board with the alternating signal, electrically connected to the output in case the second area of all electrodes for measuring the conductivity of a fluid, moving in both channels, which is the first area of all electrodes. The electrical circuit on the printed square is portinale measured conductivity of the fluid before and after treatment. The circuit Board has implications for the transmission of output signals to the external indicating instrument to indicate the operating status of the device (see U.S. patent No. 5362383, IPC B 01 D 65/10).

The disadvantage of this device is the lack of accuracy and sensitivity of measurements, the technical complexity of the design.

The objective of this solution is to improve the accuracy and sensitivity of measurements.

This object is achieved in that the device for measuring water quality, containing situated in the body of the generator AC signal from the connected sensor in the form of two electrodes, each of which one section facing the inside of the body, and another part goes to the outside, a display unit, a power source, in accordance with the proposed technical solution further comprises a thermistor connected to a generator, the memory blocks and comparing the measured signals included between the generator and the display unit, the memory unit has adjustment to zero, one of the electrodes is made annular, and the second in the form of a solid cylinder and placed inside the first annular gap between them, the gap filled with dielectric material, the generator is designed as autodin changing the operation mode automatic generator so to compensate for the change in conductivity of water with temperature change, and the introduction to the unit memory blocks and comparing the measured signals included between the generator and the display unit, the memory unit has adjustment to zero, resulting in improved measurement accuracy, and the use of automatic generator, which increases the sensitivity of the inventive device. A similar set of items measuring water quality is not known.

The proposed device is illustrated by drawings:

Fig.1 - scheme of the installation, where:

1 sensor, 2 - automatic generator, 3 - Autonomous power supply, 4 - block of memory with zero adjustment, 5 - block comparison of the measured signals, 6 - display unit, 7 - thermistor.

Fig.2 - device sensor: 8 and 9, the electrodes 10 to the annular gap filled with dielectric material 11 and 12 contacts for connection to a signal generator 13 to the sensor housing.

Fig.3 - the appearance of the meter.

Fig.4 - view of the meter indication.

Fig.5 is a calibration curve.

Device for measuring water quality contains located in the housing of the sensor 1, is made in the form of two electrodes, automatic generator AC signal 2, AVTONOMNYY generator 2 and the display unit 6, 7 is a thermistor.

The device operates as follows.

The power source 3 starts the automatic operation of the generator 2. The operation mode is set by the parameters of the inductive-capacitive-resistive circuit of the generator 2 so as to provide simultaneous with the generation of the reception and detection of change in the AC signal from the sensor 1 when it is placed in a controlled object, which is used as an aqueous solution with different concentration of dissolved salts. When the change in the temperature of thermistor 7 changes its resistance, altering the mode of operation of autodyne oscillator so as to compensate for the change in the conductivity of the water. To increase the sensitivity calibration is performed on the fixed load and the output signal value stored in memory block 4 with zero adjustment. When measuring the output signal is compared with a calibration signal and a differential signal is input to the display unit 6 displays the numbers corresponding to the inverse of the concentration of salts dissolved in water, namely in units that reflect the quality of the water solution.

The gauge of water quality (Fig.2) made in the form of two electrodes 8 and 9, to which one electrode 8 is made annular, and the second 9 in the form of a solid cylinder and placed inside the first annular gap 10 between them, the gap filled with dielectric material, the electrodes connected to the signal generator by means of the threaded pins 11 and 12.

An example of practical implementation of the method.

The appearance of the meter water quality is shown in Fig.3. For operation of the meter, you need:

- Click on the body of the sensor, with LCD indicator displays the number “1” (see Fig.4).

- Drop the sensor 1 cm in water. Pressing captures indicator for 5 sec.

- The indicator shows numerically the quality of the water. Through 5 with the display turned off.

The numerical value of the indicator meter water quality can be translated into the concentration of salts dissolved in water with the aid of the calibration curve (see Fig.3). The numerical value of water quality are given in table 1.

The main technical characteristics of measuring water quality are shown in table 2.

Thus, the use of the proposed device allows to improve the accuracy and sensitivity of measurements to reduce the time provospalitelna in case the generator AC signal from the connected sensor in the form of two electrodes, each of which one section facing the inside of the body, and another part goes to the outside, a display unit, a power source, characterized in that it further comprises a thermistor connected to a generator, the memory blocks and comparing the measured signals included between the generator and the display unit, the memory unit has adjustment to zero, one of the electrodes is made annular, and the second in the form of a solid cylinder and placed inside the first annular gap between them, the gap filled with dielectric material, and the generator is made in the form of automatic devices.

 

Same patents:

The invention relates to the field of determining the residual disinfectant in the water, in particular to aqueous solution of the azo dye for this purpose

The invention relates to the field of medical ecology, biology section

The invention relates to the protection of the environment, and in particular to methods of determining the degree of pollution of natural waters and sewage lignin substances in the zone of influence of the pulp and paper industries, and can be used in the analysis of wastewater
The invention relates to the assessment of the degree of environmental pollution

The invention relates to a method for measurement of NOxin the liquid, which emit the liquid sample, adjust pH and/or ionic strength of the specified sample at time t0record the mV values present in a given sample, using selective probe NOxat a predetermined time t1register another value mV2present in said sample, after another predetermined time t2determine the concentration of NOxin this sample in each predetermined time interval t1and t2determine changes NOxand determine the concentration of NOx

The invention relates to the fishing industry, specifically to applied ecology and toxicology, and can be used to assess the toxicity of pollutants to waters of the far Eastern seas in the design and prediction of human activities

The invention relates to analytical chemistry of organic compounds and can be used for concentration of phenol in analytical control of natural water, drinking water and treated wastewater

The invention relates to methods for determination of iron in water and can be applied for the determination of iron, bound in organoiron complexes in downhole and surface waters

The invention relates to a semiconductor sensor engineering

The invention relates to measurements of electrically conductive substances values

Coulometric cell // 2228520
The invention relates to the field of analytical instrumentation and can be used in hygrometers

The humidity sensor // 2219535
The invention relates to instrumentation and can be used to measure humidity in the home and various technological processes

The invention relates to the field of measuring technique, namely the measurement of process parameters, and can be used for resistivity measurements of liquids in the food, chemical, petrochemical, pulp and paper, metallurgical and other industries

The invention relates to measuring equipment

The invention relates to electrical engineering and can be used for continuous contactless determination of moisture content of a moving textile materials and paper

FIELD: servicing steel underground pipe lines; diagnosis of corrosion on pipe lines.

SUBSTANCE: pipe line under test is divided into sections and pit is made at boundaries; then electrical resistance is measured in section and at edge zones of these sections (in pits) by four-electrode scheme. Measured at edge zones are also thickness of pipe wall and its outer diameter. Specific resistance of pipe metal is calculated by these measurements. Electrical resistance of sections is calculated on basis of specific resistance and measured and specified magnitude are compared. Deviation of measured magnitude from specified ones is indicative of corrosion damage on these sections. Current and potential electrodes are located at distance no less than two diameters of pipe for enhancing measurement accuracy.

EFFECT: enhanced accuracy of measurement.

2 cl

Up!