CN211978951U - Multi-parameter water quality analysis equipment for full-automatic chemical analyzer - Google Patents
Multi-parameter water quality analysis equipment for full-automatic chemical analyzer Download PDFInfo
- Publication number
- CN211978951U CN211978951U CN202020654984.6U CN202020654984U CN211978951U CN 211978951 U CN211978951 U CN 211978951U CN 202020654984 U CN202020654984 U CN 202020654984U CN 211978951 U CN211978951 U CN 211978951U
- Authority
- CN
- China
- Prior art keywords
- processing circuit
- sensor processing
- amplifier
- sensor
- conversion
- 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.)
- Active
Links
Images
Abstract
The utility model provides a multi-parameter water quality analysis equipment for full automatization chemical analysis appearance, belongs to chemical analysis technical field, including photometric sensor processing circuit, conductivity sensor processing circuit, turbidity sensor processing circuit, PH sensor processing circuit, AD conversion processing circuit, CPU controller and PC, photometric sensor processing circuit conductivity sensor processing circuit, turbidity sensor processing circuit and PH sensor processing circuit's signal output part all is connected with AD conversion processing circuit, AD conversion processing circuit is connected with the CPU controller, the CPU controller is connected with the PC. The utility model discloses having done the detection parameter (ion, PH value, conductivity, turbidity) commonly used and having integrated, in the sensor that the parameter used that will detect was placed the solution that awaits measuring, analytical equipment can once export a plurality of quality of water parameters of treating the analysis, and the improvement detection speed that can show improves work efficiency, alleviates work burden.
Description
Technical Field
The utility model belongs to the technical field of chemical analysis, especially relate to a multi-parameter water quality analysis system for full automation chemical analysis appearance.
Background
The indexes of water quality analysis of industrial boiler water are generally pH value, conductivity, turbidity, ion content and the like, and because the indexes are many, each index generally needs an analytical device for detection. Therefore, on one hand, the labor intensity of the inspection personnel is increased, and the cost expenditure of the detection mechanism is also increased. The existing scheme generally corresponds to one type of analysis equipment by one parameter, such as a PH meter for PH value, a conductivity meter for testing conductivity parameters and the like, and because the detection process is complicated, if the sample amount is large, a large amount of time is required for detection personnel. Therefore, there is a need in the art for a new solution to solve this problem.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the multi-parameter water quality analysis equipment for the full-automatic chemical analyzer integrates commonly used detection parameters (ions, PH values, conductivity and turbidity), a sensor used by the parameters to be detected is placed in a solution to be detected, the analysis equipment can output a plurality of water quality parameters to be analyzed at one time, the detection speed can be obviously improved, the work efficiency is improved, and the work load is lightened.
A multi-parameter water quality analysis equipment for a full-automatic chemical analyzer is characterized in that: the device comprises a luminosity sensor processing circuit, a conductivity sensor processing circuit, a turbidity sensor processing circuit, a PH sensor processing circuit, an AD conversion processing circuit, a CPU controller and a PC (personal computer), wherein the signal output ends of the luminosity sensor processing circuit, the conductivity sensor processing circuit, the turbidity sensor processing circuit and the PH sensor processing circuit are all connected with the AD conversion processing circuit, the AD conversion processing circuit is connected with the CPU controller, and the CPU controller is connected with the PC;
the luminosity sensor processing circuit comprises five channels, and each channel receives optical signals with corresponding wavelengths;
the conductivity sensor processing circuit comprises a current detection circuit, a voltage detection circuit and a positive and negative pulse power supply circuit;
a turbidity signal input port of the turbidity sensor processing circuit is connected with the photodiode sensor, and an output port of the turbidity sensor processing circuit is connected with the AD conversion processing circuit through an I/V conversion amplifier and a secondary voltage amplifier;
the PH sensor processing circuit comprises a buffer amplifier, a bias circuit and an instrument amplifier, wherein an input port of the buffer amplifier is connected with the PH sensor, an output port of the buffer amplifier is connected with the same-phase end of the instrument amplifier, and an input end of the bias circuit is connected with the reverse end of the instrument amplifier; and the signal output end of the instrument amplifier is connected with the AD conversion processing circuit.
The AD conversion processing circuit adopts AD7606, and the output signals of the luminosity sensor processing circuit, the conductivity sensor processing circuit, the turbidity sensor processing circuit and the PH sensor processing circuit are connected with the AD conversion processing circuit through an RC low-pass filter network.
The luminosity sensor processing circuit converts an optical signal into current information through a photodiode sensor, converts the current information into a voltage signal through an I/V conversion amplifier, and transmits the voltage signal to the AD conversion processing circuit.
And an instrument amplifier in the PH sensor processing circuit amplifies the voltage of the PH sensor.
The voltage detection circuit in the conductivity sensor processing circuit comprises a buffer amplifier and an instrument amplifier, wherein the instrument amplifier amplifies and detects the voltage at two ends of the electrode.
The current detection circuit in the conductivity sensor processing circuit comprises an I/V conversion amplifier which amplifies the current signal flowing through the conductivity electrode.
The positive and negative pulse power supply circuit in the conductivity sensor processing circuit amplifies the voltage signal sent by the digital-to-analog converter of the CPU controller to generate a positive pulse power supply.
Through the above design scheme, the utility model discloses following beneficial effect can be brought: the utility model provides a multi-parameter water quality analysis equipment for full automation chemical analysis appearance, has made the detection parameter (ion, PH value, conductivity, turbidity) commonly used and has integrated, places the sensor that the parameter that will detect used to the solution that awaits measuring, and analytical equipment can once output a plurality of water quality parameters of waiting to analyze, improvement detection speed that can show improves work efficiency, alleviates work burden.
Drawings
The invention is further described with reference to the following drawings and detailed description:
FIG. 1 is a schematic block diagram of a multi-parameter water quality analyzer for a full-automatic chemical analyzer.
In the figure, a 1-photometric sensor processing circuit, a 2-conductivity sensor processing circuit, a 3-turbidity sensor processing circuit, a 4-PH sensor processing circuit, a 5-AD conversion processing circuit, a 6-CPU controller and a 7-PC machine are adopted.
Detailed Description
A multi-parameter water quality analysis device for a full-automatic chemical analyzer is shown in figure 1 and comprises a photometric sensor processing circuit 1, a conductivity sensor processing circuit 2, a turbidity sensor processing circuit 3, a PH sensor processing circuit 4, an AD conversion processing circuit 5, a CPU controller 6 and a PC 7, wherein the signal output ends of the photometric sensor processing circuit 1, the conductivity sensor processing circuit 2, the turbidity sensor processing circuit 3 and the PH sensor processing circuit 4 are all connected with the AD conversion processing circuit 5, the AD conversion processing circuit 5 is connected with the CPU controller 6, and the CPU controller 6 is connected with the PC 7.
The photometric sensor processing circuit 1 includes 5 channels, and each channel corresponds to an optical signal with one wavelength. The optical signal is converted into current information by the photodiode sensor, converted into a voltage signal by the subsequent I/V conversion amplifier, and sent to the AD conversion processing circuit 5.
The conductivity sensor processing circuit 2 mainly comprises three parts, namely a current detection circuit, a voltage detection circuit and a positive and negative pulse power supply circuit. The voltage detection circuit mainly comprises a buffer amplifier and an instrument amplifier, and the instrument amplifier amplifies and detects the voltages at two ends of the electrode. The current detection circuit is mainly composed of an I/V conversion amplifier, and amplifies a current signal flowing through the conductive electrode. The signal output from the instrumentation amplifier and the signal output from the I/V conversion amplifier are input to an AD conversion processing circuit 5. The conductivity positive and negative pulse power generation circuit is used for amplifying a voltage signal sent by the digital-to-analog converter of the CPU controller 6 to generate a positive pulse power, and the positive voltage signal passes through the reverse amplifier to generate a negative pulse power.
The turbidity sensor processing circuit 3 accesses the photodiode sensor to the turbidity signal port of the control board, and the output turbidity voltage signal is sent to the AD conversion processing circuit 5 through the I/V conversion amplifier and the secondary voltage amplifier.
The PH sensor processing circuit 5 mainly comprises a buffer amplifier, a bias circuit and an instrument amplifier. The PH sensor is firstly subjected to impedance conversion through the buffer amplifier, then the impedance conversion is input into the in-phase end of the instrumentation amplifier, the bias circuit is input into the reverse end of the instrumentation amplifier, the voltage of the PH sensor is amplified by the instrumentation amplifier, and the output signal of the amplifier is sent to the AD conversion processing circuit 5.
The AD conversion processing circuit 5 is an 8-way 16-bit converter. The input signal is the output signal of each amplifier, and the signal passes through an RC low-pass filter network before entering the AD converter, so that the signal noise is reduced. The D0-D15 data signals are output to the controller and read. The controller sends the sensor data information to the PC 7 for further processing.
The CPU controller 6 controls the timing of the AD conversion processing circuit 5 and the reading of data.
The PC 7 is responsible for processing, displaying, printing, and the like of data.
The utility model discloses in the actual test, circuit system operation is reliable and stable, and the measuring accuracy is high, and is linear good. Due to multi-parameter integration, the detection efficiency is obviously improved.
Claims (7)
1. A multi-parameter water quality analysis equipment for a full-automatic chemical analyzer is characterized in that: the device comprises a luminosity sensor processing circuit (1), a conductivity sensor processing circuit (2), a turbidity sensor processing circuit (3), a PH sensor processing circuit (4), an AD conversion processing circuit (5), a CPU (6) and a PC (7), wherein the signal output ends of the luminosity sensor processing circuit (1), the conductivity sensor processing circuit (2), the turbidity sensor processing circuit (3) and the PH sensor processing circuit (4) are all connected with the AD conversion processing circuit (5), the AD conversion processing circuit (5) is connected with the CPU controller (6), and the CPU controller (6) is connected with the PC (7);
the photometric sensor processing circuit (1) comprises five channels, and each channel receives optical signals with corresponding wavelengths;
the conductivity sensor processing circuit (2) comprises a current detection circuit, a voltage detection circuit and a positive and negative pulse power supply circuit;
a turbidity signal input port of the turbidity sensor processing circuit (3) is connected with the photodiode sensor, and an output port of the turbidity sensor processing circuit is connected with the AD conversion processing circuit (5) through an I/V conversion amplifier and a secondary voltage amplifier;
the PH sensor processing circuit (4) comprises a buffer amplifier, a bias circuit and an instrument amplifier, wherein an input port of the buffer amplifier is connected with the PH sensor, an output port of the buffer amplifier is connected with the same-phase end of the instrument amplifier, and an input end of the bias circuit is connected with the reverse end of the instrument amplifier; and the signal output end of the instrument amplifier is connected with an AD conversion processing circuit (5).
2. The multi-parameter water quality analyzing apparatus for a full-automatic chemical analyzer according to claim 1, wherein: the AD conversion processing circuit (5) adopts AD7606, and output signals of the luminosity sensor processing circuit (1), the conductivity sensor processing circuit (2), the turbidity sensor processing circuit (3) and the PH sensor processing circuit (4) are connected with the AD conversion processing circuit (5) through an RC low-pass filter network.
3. The multi-parameter water quality analyzing apparatus for a full-automatic chemical analyzer according to claim 1, wherein: the luminosity sensor processing circuit (1) converts an optical signal into current information through a photodiode sensor, converts the current information into a voltage signal through an I/V conversion amplifier, and transmits the voltage signal to an AD conversion processing circuit (5).
4. The multi-parameter water quality analyzing apparatus for a full-automatic chemical analyzer according to claim 1, wherein: and an instrumentation amplifier in the PH sensor processing circuit (4) amplifies the voltage of the PH sensor.
5. The multi-parameter water quality analyzing apparatus for a full-automatic chemical analyzer according to claim 1, wherein: the voltage detection circuit in the conductivity sensor processing circuit (2) comprises a buffer amplifier and an instrument amplifier, and the instrument amplifier amplifies and detects the voltage at two ends of the electrode.
6. The multi-parameter water quality analyzing apparatus for a full-automatic chemical analyzer according to claim 1, wherein: the current detection circuit in the conductivity sensor processing circuit (2) comprises an I/V conversion amplifier which amplifies the current signal flowing through the conductivity electrode.
7. The multi-parameter water quality analyzing apparatus for a full-automatic chemical analyzer according to claim 1, wherein: and a positive and negative pulse power supply circuit in the conductivity sensor processing circuit (2) amplifies a voltage signal sent by a digital-to-analog converter of the CPU controller (6) to generate a positive pulse power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020654984.6U CN211978951U (en) | 2020-04-26 | 2020-04-26 | Multi-parameter water quality analysis equipment for full-automatic chemical analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020654984.6U CN211978951U (en) | 2020-04-26 | 2020-04-26 | Multi-parameter water quality analysis equipment for full-automatic chemical analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211978951U true CN211978951U (en) | 2020-11-20 |
Family
ID=73344808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020654984.6U Active CN211978951U (en) | 2020-04-26 | 2020-04-26 | Multi-parameter water quality analysis equipment for full-automatic chemical analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211978951U (en) |
-
2020
- 2020-04-26 CN CN202020654984.6U patent/CN211978951U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102661923A (en) | Complex monitor for automatically monitoring multiple parameters of water on line | |
| US6936146B2 (en) | Electrochemical biosensor readout meter | |
| CN104991142A (en) | Signal analyzer and device and processing method | |
| CN203365316U (en) | Multi-parameter water quality analyzer | |
| CN103149166A (en) | Dual-wavelength ultraviolet method organic wastewater chemical oxygen demand (COD) detection device and method | |
| CN2867341Y (en) | Spectrophotometer of full-automatic biochemical analyzer | |
| CN108204824B (en) | Photoelectric detector detection device and detection method | |
| CN211978951U (en) | Multi-parameter water quality analysis equipment for full-automatic chemical analyzer | |
| CN113834789B (en) | Multi-channel heavy metal detection device and detection method | |
| CN109191819B (en) | Multi-point water quality monitoring and analyzing system and method based on clustering algorithm | |
| CN102706947B (en) | Portable pH instrument | |
| CN203337541U (en) | Gas analyzer | |
| CN109856588A (en) | It is a kind of to meet on-line testing process energy data lossless digital DC electric energy meter and field calibration system | |
| CN103107788A (en) | Double-phase-lock amplifier used in water quality monitoring equipment | |
| CN210051885U (en) | Electric energy data lossless digital direct current electric energy meter and field calibration system | |
| KR100404279B1 (en) | Water Quality Measuring System of using the PC monitor | |
| CN112649376A (en) | Bacterial microorganism sensor based on neural network algorithm and microorganism detection method | |
| CN208606794U (en) | A kind of oil-immersed power transformer fault detection system | |
| CN220252068U (en) | Measuring system of connector | |
| CN201653544U (en) | Laser ageing detection device | |
| CN113945433A (en) | Multi-channel flue gas analyzer | |
| CN213423291U (en) | High-speed voltage current analyzer | |
| CN203231967U (en) | Purely digitized photoelectrical detection system | |
| CN208765865U (en) | Temperature measurement system and device | |
| CN109975275A (en) | The method for improving laser induced breakdown spectroscopy measurement nitrogen content of coal element precision |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |