CN211877180U - Animal remedy production pure water system water level monitoring device - Google Patents
Animal remedy production pure water system water level monitoring device Download PDFInfo
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- CN211877180U CN211877180U CN202020688181.2U CN202020688181U CN211877180U CN 211877180 U CN211877180 U CN 211877180U CN 202020688181 U CN202020688181 U CN 202020688181U CN 211877180 U CN211877180 U CN 211877180U
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Abstract
The utility model discloses an animal remedy production pure water system water level monitoring device, water level sensor in automatically controlled unit and the pure water holding vessel, water level sensor is infrared water level sensor, automatically controlled unit includes signal amplification circuit, band-pass filter circuit, controller and display screen, and signal amplification circuit amplifies infrared water level sensor's detected signal fast, has greatly improved detected signal's treatment effeciency. Then adopt band-pass filter circuit to carry out the frequency modulation to detected signal, utilize the effective filtering outside clutter interference of band-pass filter principle, avoid the water level detected value to appear the deviation, the controller carries out the comparison with water level detected value and system default to with the switching of control intake pump, make the water level in the pure water storage tank be in the default scope all the time, thereby realize the automatic accurate control of pure water system water level.
Description
Technical Field
The utility model relates to an animal remedy production pure water system technical field especially relates to an animal remedy production pure water system water level monitoring device.
Background
The pure water system in traditional animal remedy production line can produce waste water usually, can cause environmental pollution, and the water yield needs manual control moreover, and degree of automation is not high. In order to enable the water level of the pure water system to be automatically detected, a water level sensor is usually arranged in a pure water storage tank of the existing pure water system, a data output end of the water level sensor is electrically connected with a control device, and a control signal output end of the control device is electrically connected with a control end of a water inlet pump, so that the automatic control of the water level of the pure water system is realized. However, in the process of monitoring the water level, the electrode of the water level sensor is easily polluted, and the detection signal is easily influenced by the temperature, so that the water level detection value is deviated, and the water level of the pure water system is not accurately controlled automatically.
So the utility model provides a new scheme to solve the problem.
SUMMERY OF THE UTILITY MODEL
To the above situation, in order to overcome the defects of the prior art, the utility model aims to provide a water level monitoring device of a pure water system for veterinary drug production.
The technical scheme for solving the problem is as follows: the utility model provides an animal remedy production pure water system water level monitoring device, water level sensor in including electrical unit and pure water storage tank, water level sensor is infrared water level sensor, electrical unit includes signal amplification circuit, band-pass filter circuit, controller and display screen, signal amplification circuit's input is connected infrared water level sensor's signal output part is connected signal amplification circuit's input, signal amplification circuit's output is connected band-pass filter circuit's input, band-pass filter circuit's output is connected the controller, the controller conveys real-time water level data and shows on the display screen.
Further, the signal amplification circuit comprises a triode VT1, the base of the triode VT1 is connected with the signal output end of the infrared water level sensor and one end of a resistor R1 through a resistor R2, the other end of the resistor R1 is grounded, the emitter of the triode VT1 is grounded through a resistor R2 and a capacitor C3 which are connected in parallel, the collector of the triode VT1 is connected with one end of a resistor R3 and one end of a capacitor C4, the other end of the capacitor C4 is connected with the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R4 and the collector of the triode VT2, the other ends of the resistors R3 and R4 are connected with a +12V power supply and grounded through a capacitor C1, the output end of the operational amplifier AR1 is connected with the base of the triode VT 2.
Further, the band-pass filter circuit comprises an operational amplifier AR2, a non-inverting input terminal of the operational amplifier AR2 is connected with one end of a resistor R6 and one end of a capacitor C5 through a resistor R7 and is grounded through a capacitor C6, the other end of the resistor R6 is connected with an emitter of a triode VT2, an inverting input terminal and an output terminal of the operational amplifier AR2 are connected with the other end of a capacitor C5, one end of the capacitor C7 and the controller are connected through a resistor R8, and the other end of the capacitor C7 is grounded.
Through the technical scheme, the beneficial effects of the utility model are that:
1. the utility model adopts the water level sensor to detect the water level in the pure water storage tank in real time, and the signal amplification circuit rapidly amplifies the detection signal of the infrared water level sensor, thereby greatly improving the processing efficiency of the detection signal;
2. a band-pass filter circuit is adopted to modulate the frequency of the detection signal, and the external clutter interference is effectively filtered by utilizing the principle of the band-pass filter, so that the deviation of the water level detection value is avoided.
Drawings
Fig. 1 is a schematic diagram of the signal amplification circuit of the present invention.
Fig. 2 is a schematic diagram of the bandpass filter circuit of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings 1 to 2. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The utility model provides an animal remedy production pure water system water level monitoring device, water level sensor in including electrical control unit and pure water storage tank, water level sensor is infrared water level sensor, electrical control unit includes signal amplification circuit, band-pass filter circuit, controller and display screen, infrared water level sensor's signal output part connection signal amplification circuit's input is connected to signal amplification circuit's input, band-pass filter circuit's input is connected to signal amplification circuit's output, band-pass filter circuit's output connection director, the controller shows on will real-time water level data transfer the display screen, the producer of being convenient for observes in real time.
The infrared water level sensor has the characteristics of non-contact measurement, high response speed and the like, the infrared water level sensor internally comprises a near-infrared light-emitting diode and a photosensitive receiver BG1, and a detection signal value output by the photosensitive receiver BG1 is firstly sent to a signal amplification circuit for amplification. As shown in fig. 1, the signal amplifying circuit includes a transistor VT1, a base of the transistor VT1 is connected to a signal output terminal of the infrared water level sensor and one end of a resistor R1 through a resistor R2, the other end of the resistor R1 is grounded, an emitter of the transistor VT1 is grounded through a resistor R2 and a capacitor C3 which are connected in parallel, a collector of the transistor VT1 is connected to one ends of a resistor R3 and a capacitor C4, the other end of the capacitor C4 is connected to a non-inverting input terminal of an operational amplifier AR1, an inverting input terminal of the operational amplifier AR1 is connected to one end of a resistor R4 and a collector of a transistor VT2, the other ends of the resistors R3 and R4 are connected to a +12V power supply and are grounded through a capacitor C1, an output terminal of the operational amplifier AR1 is connected to a base of the transistor.
The detection signal of the infrared water level sensor is coupled by a capacitor C2 and then sent into a triode VT1 for amplification, and the resistor R2 and the capacitor C3 form RC filtering to play a stabilizing role in amplifying the signal of the triode VT 1. Then, the operational amplifier AR1 and the transistor VT2 form an emitter follower to quickly amplify the output signal of the transistor VT1, thereby greatly improving the processing efficiency of the detection signal.
The output signal of the signal amplifying circuit is sent to a band-pass filter circuit for frequency modulation, as shown in fig. 2, the band-pass filter circuit comprises an operational amplifier AR2, the non-inverting input end of the operational amplifier AR2 is connected with one end of a resistor R6 and one end of a capacitor C5 through a resistor R7 and is grounded through a capacitor C6, the other end of the resistor R6 is connected with the emitter of a triode VT2, the inverting input end and the output end of the operational amplifier AR2 are connected with the other end of a capacitor C5 and are connected with one end of a capacitor C7 and a controller through a resistor R8, and the other end of the capacitor C7. The resistors R6, R7, the capacitors C5 and C6 and the operational amplifier AR2 form a second-order band-pass filter, the center frequency of the second-order band-pass filter is consistent with the frequency of a detection signal of the infrared water level sensor, so that external clutter interference is effectively filtered, the accuracy of a water level detection value is effectively improved, and finally, the detection signal after being processed is sent into the controller after being filtered and stabilized by the RC.
The utility model discloses when specifically using, water level sensor carries out real-time detection to the water level in the pure water storage tank, and signal amplification circuit carries out the rapid amplification to infrared water level sensor's detected signal, has greatly improved detected signal's treatment effeciency. And then, a band-pass filter circuit is adopted to carry out frequency modulation on the detection signal, and the external clutter interference is effectively filtered by utilizing the band-pass filter principle, so that the deviation of the water level detection value is avoided. The controller compares the water level detection value with a system preset value so as to control the opening and closing of the water inlet pump, so that the water level in the pure water storage tank is always within a preset value range, and the automatic and accurate control of the water level of the pure water system is realized.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (3)
1. The utility model provides an animal remedy production pure water system water level monitoring device, includes the level sensor in electrical control unit and the pure water holding vessel, its characterized in that: the water level sensor is infrared water level sensor, the electrical control unit includes signal amplification circuit, band-pass filter circuit, controller and display screen, signal amplification circuit's input is connected infrared water level sensor's signal output part connects signal amplification circuit's input, signal amplification circuit's output is connected band-pass filter circuit's input, band-pass filter circuit's output is connected the controller, the controller conveys real-time water level data and shows on the display screen.
2. The water level monitoring device according to claim 1, wherein: the signal amplification circuit comprises a triode VT1, the base electrode of the triode VT1 is connected with the signal output end of the infrared water level sensor and one end of a resistor R1 through a resistor R2, the other end of the resistor R1 is grounded, the emitter electrode of the triode VT1 is grounded through a resistor R2 and a capacitor C3 which are connected in parallel, the collector electrode of the triode VT1 is connected with one ends of a resistor R3 and a capacitor C4, the other end of the capacitor C4 is connected with the non-inverting input end of an operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected with one end of a resistor R4 and the collector electrode of a triode VT2, the other ends of the resistors R3 and R4 are connected with a +12V power supply and are grounded through a capacitor C1, the output end of the operational amplifier AR1 is connected with the base electrode of a.
3. The water level monitoring device according to claim 2, wherein: the band-pass filter circuit comprises an operational amplifier AR2, wherein the non-inverting input end of the operational amplifier AR2 is connected with one end of a resistor R6 and one end of a capacitor C5 through a resistor R7 and is grounded through a capacitor C6, the other end of the resistor R6 is connected with the emitter of a triode VT2, the inverting input end and the output end of the operational amplifier AR2 are connected with the other end of a capacitor C5, one end of the capacitor C7 and the controller are connected through a resistor R8, and the other end of the capacitor C7 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020688181.2U CN211877180U (en) | 2020-04-29 | 2020-04-29 | Animal remedy production pure water system water level monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020688181.2U CN211877180U (en) | 2020-04-29 | 2020-04-29 | Animal remedy production pure water system water level monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211877180U true CN211877180U (en) | 2020-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020688181.2U Active CN211877180U (en) | 2020-04-29 | 2020-04-29 | Animal remedy production pure water system water level monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211877180U (en) |
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2020
- 2020-04-29 CN CN202020688181.2U patent/CN211877180U/en active Active
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