CN113092690A - Portable speed-adjustable calibration device and method for flow-through ion concentration measuring instrument - Google Patents
Portable speed-adjustable calibration device and method for flow-through ion concentration measuring instrument Download PDFInfo
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- CN113092690A CN113092690A CN202110472258.1A CN202110472258A CN113092690A CN 113092690 A CN113092690 A CN 113092690A CN 202110472258 A CN202110472258 A CN 202110472258A CN 113092690 A CN113092690 A CN 113092690A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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Abstract
The invention discloses a portable speed-adjustable calibration device and a portable speed-adjustable calibration method for a flow-through ion concentration measuring instrument, wherein the portable speed-adjustable calibration device comprises a shell, a standard solution container, a single-chip microcomputer controller and a pulse electromagnetic pump which are arranged in the shell, and a battery for providing electric energy; the single chip microcomputer controller is connected with the control end of the pulse electromagnetic pump, the inlet of the pulse electromagnetic pump is communicated with the standard solution container during calibration, and the outlet of the pulse electromagnetic pump is communicated with the flow-through ion concentration measuring instrument.
Description
Technical Field
The invention belongs to the technical field of a flow-through ion concentration measuring instrument, and relates to a portable speed-adjustable calibration device and a portable speed-adjustable calibration method for the flow-through ion concentration measuring instrument.
Background
A flow-through ion concentration measuring instrument is a common instrument used in industry, and is typically configured to continuously measure the ion concentration value in a liquid flowing through the instrument by mounting an ion concentration sensor on a liquid pipeline or a liquid flow-through tank of a special structure. However, most of these sensors require periodic calibration for long-term operation, and sensors that are damaged or replaced after their life has expired also require calibration. At present, most of users of such instrument products need to take out the sensor and place the sensor in a static standard solution during calibration, the method is complicated to operate and low in efficiency, and the calibration under the static condition is not consistent with the measurement working condition of actual flowing liquid, so that measurement errors of different degrees can be caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a portable speed-adjustable calibration device and a portable speed-adjustable calibration method for a flow-through ion concentration measuring instrument, which can improve the accuracy of the flow-through ion concentration measuring instrument after calibration, and have the advantages of simple operation and high efficiency.
In order to achieve the purpose, the speed-adjustable calibration device for the flow-through liquid ion concentration measuring instrument comprises a shell, a standard solution container, a single-chip microcomputer controller and a pulse electromagnetic pump which are arranged in the shell, and a battery for providing electric energy;
the single chip microcomputer controller is connected with the control end of the pulse electromagnetic pump, during calibration, the inlet of the pulse electromagnetic pump is communicated with the standard solution container, and the outlet of the pulse electromagnetic pump is communicated with the circulation type ion concentration measuring instrument.
The inlet of the pulse electromagnetic pump is communicated with the standard solution container through a liquid inlet penetrating plate joint, wherein the liquid inlet penetrating plate joint is fixed on the shell.
The outlet of the pulse electromagnetic pump is communicated with the flow-through ion concentration measuring instrument through a liquid outlet through-plate connector, wherein the liquid outlet through-plate connector is fixed on the shell.
The display screen is connected with the single chip microcomputer controller, and the display screen is fixed on the shell.
The single chip microcomputer controller is characterized by further comprising a first button for starting user input and a plurality of second buttons for adjusting output signals of the single chip microcomputer controller, wherein the first button and the second buttons are connected with the single chip microcomputer controller.
When the electromagnetic pump works, the single chip microcomputer controller generates a PWM wave signal, and the pulse electromagnetic pump is controlled by the MOSET after the PWM wave signal is optically coupled and isolated.
The single chip microcomputer controller is connected with the display screen through an RS485 serial port.
An adjustable speed calibration method for a flow-through liquid ion concentration measuring instrument comprises the following steps:
the flow rate of the pulse electromagnetic pump is controlled by the singlechip controller, the standard solution is pumped out and injected into an upstream pipeline of the flow-through ion concentration measuring instrument by the pulse electromagnetic pump, the action frequency of the pulse electromagnetic pump is adjusted by the singlechip controller, the flow rate of the standard solution displayed by the flow-through ion concentration measuring instrument is consistent with the flow rate of liquid during normal measurement, and the calibration of the flow-through ion concentration measuring instrument is carried out after the system is stabilized.
The invention has the following beneficial effects:
when the portable speed-adjustable calibration device and the method of the flow-through ion concentration measuring instrument are in specific operation, the pulse electromagnetic pump is used for pumping the standard solution out and injecting the standard solution into an upstream pipeline of the flow-through ion concentration measuring instrument, and the singlechip controller is used for adjusting the action frequency of the pulse electromagnetic pump, so that the flow rate of the standard solution displayed by the flow-through ion concentration measuring instrument is consistent with the flow rate of liquid during normal measurement, various problems caused by calibration under a static condition are avoided, and the calibration accuracy is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a connection relation diagram of the present invention in operation.
Wherein, 1 is the shell, 2 is the singlechip controller, 3 is the battery, 4 is the display screen, 5 is first button, 6 is pulse electromagnetic pump, 7 is liquid inlet wear plate joint, 8 is liquid outlet wear plate joint, 9 is the standard solution container, 10 is the circulation formula ion concentration measuring instrument.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1 and 2, the portable adjustable speed calibration device of the flow-through ion concentration measurement instrument of the present invention includes a housing 1, a single chip microcomputer controller 2 installed in the housing 1, a battery 3, a pulse electromagnetic pump 6, a display screen 4 installed outside the housing 1, a liquid inlet through plate connector 7, and a liquid outlet through plate connector 8, wherein an output end of the single chip microcomputer controller 2 is connected to the display screen 4 and the pulse electromagnetic pump 6, an inlet of the pulse electromagnetic pump 6 is communicated with a standard solution container 9 through the liquid inlet through plate connector 7, and an outlet of the pulse electromagnetic pump 6 is communicated with an upstream pipeline of a sensor of the flow-through ion concentration measurement instrument 10 through the liquid outlet through plate connector 8.
The shell 1 is made of aluminum alloy, is small in density, easy to process and high in sufficient strength, and the whole device is light in weight, stable in structure and high in portability.
The single chip microcomputer controller 2 has a serial communication function, a PWM output function, a key detection function and a low power consumption mode function; specifically, the method comprises the following steps:
serial communication function
The single chip microcomputer controller 2 and the display screen 4 are communicated with each other to display the starting state and the stopping state of the device, the action frequency of the pulse electromagnetic pump 6 is displayed at the same time, the state information such as the injection flow rate of the standard solution is displayed, the single chip microcomputer controller 2 and the display screen 4 are communicated through an RS485 serial port, the transmission stability can be effectively improved, and the single chip microcomputer controller 2 realizes the conversion between the UART and the RS485 by adopting chips such as MAX485 or SP 3072.
PWM output function
The output of PWM is generally realized by a timer in the singlechip controller 2, and because the pulse electromagnetic pump 6 needs a fixed pulse width once to act, but the action frequency needs to be adjustable, the singlechip controller 2 outputs a PWM wave with a fixed pulse width, and then drives MOSET after optical coupling isolation to control the action of the pulse electromagnetic pump 6.
Key detection function
The single chip microcomputer controller 2 is connected with a first button 5 and four second buttons, wherein the first button 5 is used for starting user input information, and the four second buttons are respectively used for starting/stopping PWM output, increasing PWM frequency, reducing PWM frequency and confirming the PWM frequency.
Low power mode functionality
When the user does not perform any operation for several seconds, the display screen 4 is closed, the power consumption is reduced to the maximum extent, the service time of the battery 3 is prolonged, and when the user operates the first button 5, the system is awakened.
Referring to fig. 2, the portable speed-adjustable calibration method of the flow-through ion concentration measuring instrument of the present invention comprises the following steps:
the inlet of the pulse electromagnetic pump 6 is communicated with a standard solution container 9 through a liquid inlet through-plate joint 7, the outlet of the pulse electromagnetic pump 6 is communicated with the upstream pipeline of the sensor of the flow-through ion concentration measuring instrument 10 through a liquid outlet through-plate joint 8, when the calibration is performed, the portable speed-adjustable calibration device is started, the pulse electromagnetic pump 6 starts to act, the standard solution is pumped out and injected into the upstream pipeline of the sensor of the flow-through ion concentration measuring instrument 10, the action frequency of the pulse electromagnetic pump 6 is adjusted, the flow rate of the standard solution displayed by the flow-through ion concentration measuring instrument 10 is consistent with the flow rate of the liquid during normal measurement, the calibration can be performed when the system is stable, after the calibration is finished, the power supply of the connected pipeline calibration device is removed, and the calibration is immediately finished.
The invention has simple and convenient operation, does not need to take out the sensor of the instrument, can greatly improve the efficiency of operators, and can effectively improve the accuracy of the calibrated instrument by the speed regulation function of the device.
Claims (8)
1. An adjustable speed calibration device for a flow-through liquid ion concentration measuring instrument is characterized by comprising a shell (1), a standard solution container (9), a single-chip microcomputer controller (2) and a pulse electromagnetic pump (6) which are arranged in the shell (1), and a battery (3) for providing electric energy;
the single chip microcomputer controller (2) is connected with the control end of the pulse electromagnetic pump (6), during calibration, the inlet of the pulse electromagnetic pump (6) is communicated with the standard solution container (9), and the outlet of the pulse electromagnetic pump (6) is communicated with the flow-through ion concentration measuring instrument (10).
2. The adjustable speed calibration device for the flow-through liquid ion concentration measurement instrument according to claim 1, wherein the inlet of the pulsed electromagnetic pump (6) is in communication with the standard solution container (9) through a liquid inlet bulkhead fitting (7), wherein the liquid inlet bulkhead fitting (7) is fixed to the housing (1).
3. The adjustable speed calibration device for the flow-through liquid ion concentration measurement instrument according to claim 1, wherein the outlet of the pulsed electromagnetic pump (6) is in communication with the flow-through ion concentration measurement instrument (10) via a liquid outlet bulkhead fitting (8), wherein the liquid outlet bulkhead fitting (8) is fixed to the housing (1).
4. The adjustable speed calibration device for the flow-through liquid ion concentration measurement instrument according to claim 1, further comprising a display screen (4) connected to the single-chip microcomputer controller (2), wherein the display screen (4) is fixed on the housing (1).
5. The speed-adjustable calibration device for the flow-through liquid ion concentration measurement instrument according to claim 1, further comprising a first button (5) for starting user input and a plurality of second buttons for adjusting output signals of the single chip microcomputer controller (2), wherein the first button (5) and the second buttons are connected with the single chip microcomputer controller (2).
6. The adjustable speed calibration device for the flow-through liquid ion concentration measurement instrument according to claim 1, wherein in operation, the single-chip microcomputer controller (2) generates a PWM wave signal, and the MOSET controls the pulsed electromagnetic pump (6) after optical coupling isolation.
7. The speed-adjustable calibration device for the flow-through liquid ion concentration measuring instrument according to claim 4, wherein the single chip microcomputer controller (2) is connected with the display screen (4) through an RS485 serial port.
8. An adjustable speed calibration method for a flow-through liquid ion concentration measuring instrument is characterized by comprising the following steps:
the flow rate of the pulse electromagnetic pump (6) is controlled by the singlechip controller (2), the standard solution is pumped out and injected into an upstream pipeline of the flow-type ion concentration measuring instrument (10) by the pulse electromagnetic pump (6), the action frequency of the pulse electromagnetic pump (6) is adjusted by the singlechip controller (2), the flow rate of the standard solution displayed by the flow-type ion concentration measuring instrument (10) is consistent with the flow rate of liquid during normal measurement, and the calibration of the flow-type ion concentration measuring instrument (10) is carried out after the system is stabilized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110472258.1A CN113092690A (en) | 2021-04-29 | 2021-04-29 | Portable speed-adjustable calibration device and method for flow-through ion concentration measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110472258.1A CN113092690A (en) | 2021-04-29 | 2021-04-29 | Portable speed-adjustable calibration device and method for flow-through ion concentration measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113092690A true CN113092690A (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110472258.1A Pending CN113092690A (en) | 2021-04-29 | 2021-04-29 | Portable speed-adjustable calibration device and method for flow-through ion concentration measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113092690A (en) |
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2021
- 2021-04-29 CN CN202110472258.1A patent/CN113092690A/en active Pending
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