CN209512988U - A kind of ultrasonic level meter of temporary steady state measurement - Google Patents
A kind of ultrasonic level meter of temporary steady state measurement Download PDFInfo
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- CN209512988U CN209512988U CN201920331923.3U CN201920331923U CN209512988U CN 209512988 U CN209512988 U CN 209512988U CN 201920331923 U CN201920331923 U CN 201920331923U CN 209512988 U CN209512988 U CN 209512988U
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- intermediate tube
- ultrasonic
- steady state
- level meter
- pipe
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Abstract
The utility model discloses a kind of ultrasonic level meters of temporary steady state measurement, including measurement pipe, and intermediate tube is set between measurement pipe and testing container, and intermediate tube both ends are all provided with positive link stopper and cathode block, conductive floating ball is set in intermediate tube；Measurement tube top sets measuring part, and measuring part includes ultrasonic transducer, ultrasonic transmitter T, ultrasonic receiver R and display, and measurement pipe outer wall sets synchronously control box, control chip, filter, Electromotance Sensor and signal amplifier are set in synchronously control box；The Electromotance Sensor at intermediate tube both ends is separately connected signal amplifier, and signal amplifier connects filter, filter connection control chip.The utility model is with the charging or discharge state of opposite polarity electromotive force signal characterization measurement pipe, and the temporary stable state of liquid level in testing container is determined by the alternating frequency of two kinds of signals, to test out the level value of temporary stable state, the order of accuarcy for substantially increasing liquid level test, also provides a kind of new approaches for the innovation of measuring instrumentss.
Description
Technical field
The utility model relates to instrument and field of automation technology more particularly to a kind of ultrasonic liquid levels of temporary steady state measurement
Meter.
Background technique
Ultrasonic level gage is the digital liquid level instrument controlled by microprocessor.Ultrasonic pulse is changed by ultrasound in the measurements
Energy device issues, and sound wave is received after liquid surface reflects by ultrasonic receiver, passes through piezo-electric crystal or magnetostrictive device turns
Change electric signal into, and calculated by the time between the transmitting and reception of sound wave sensor to fluid to be measured surface distance；By
In using non-contacting measurement, measured medium is almost unrestricted, can be widely used for the survey of various liquid and solid material height
Amount.
During actual measurement, liquid level to be measured is that undulating value is larger, so test value in different time periods is not inevitable identical,
In the testing container of long term monitoring, generally using the average value of different time sections test value as most accurate level value, or
It is aided with other liquidometers, integrated treatment is carried out, to obtain more accurate numerical value.
In addition, some liquid containers need to do Seal treatment, the fluctuation situation of liquid level can not know in container, be unfavorable for reality
When monitor reactiveness, urgent need wants the amplitude Characteristics of some signals to show the fluctuation status of internal liquid level.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of temporary steady state measurement proposed
Ultrasonic level meter.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of ultrasonic level meter of temporary steady state measurement, including measurement pipe, are communicated with centre between measurement pipe and testing container
Pipe, the opening at intermediate tube both ends are all provided with positive link stopper and cathode block, and the middle part of intermediate tube is equipped with conductive floating ball；
The top of measurement pipe is equipped with measuring part, and measuring part includes ultrasonic transducer, ultrasonic transmitter T, ultrasound
Wave receiver R and display, the lateral wall of measurement pipe are equipped with synchronously control box, control chip, filtering are equipped in synchronously control box
Device, Electromotance Sensor and signal amplifier；
Positive link stopper and cathode block and an Electromotance Sensor at intermediate tube one end form voltage circuit, intermediate tube
Positive link stopper and cathode block and another Electromotance Sensor at the other end form voltage circuit, two Electromotance Sensors
Test voltage signal polarity it is opposite；
Signal amplifier is electrically connected in two Electromotance Sensors, and two signal amplifiers are electrically connected filtering
Device, ultrasonic transducer are also electrically connected filter, and filter is connect with control chip, and control chip is connect with display.
Preferably, intermediate tube is specially back-shaped pipe, sets that there are two conductive floating balls in intermediate tube.
Preferably, intermediate tube is specifically ring pipe, sets that there are two conductive floating balls in intermediate tube.
Preferably, intermediate tube is specifically spiral element, and a conductive floating ball is equipped in intermediate tube.
Preferably, conductive floating ball is specially the hollow sphere of electrically conductive graphite moldings formed therefrom.
Preferably, positive link stopper and cathode block are triangle conducting block.
Preferably, the top of measurement pipe and the top of testing container are equipped with communicating pipe.
Compared with prior art, the utility model has the beneficial effects that
The utility model is communicated with intermediate tube between measurement pipe and testing container, and the opening at intermediate tube both ends is all provided with just
Pole link stopper and cathode block, the middle part of intermediate tube are equipped with conductive floating ball；When measurement pipe and the liquid level difference of testing container, in liquid
Under difference effect, water flow band moving conductive floating ball flows in intermediate tube, when reaching one end of intermediate tube, contacts positive link stopper and cathode
Block forms voltage circuit with Electromotance Sensor, generates electromotive force signal, be transmitted to filter through signal amplifier.It is intermediate
The both ends of pipe alternately export different electromotive force signals, and the alternating frequency of two kinds of signals just represents measurement pipe testing container liquid level
Uneven degree represents the degree of fluctuation of the liquid level of testing container；When two kinds of signals in uniformly alternately, show appearance to be measured
The liquid level presentation of device equably changes, and is at this time exactly the temporary stable state of liquid level to be measured；The utility model is test with temporary stable state
Time contrasts with the testing time of measuring part (time difference method), to test out the level value of temporary stable state, substantially increases liquid level
The order of accuarcy of test also provides a kind of new approaches for the innovation of measuring instrumentss.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of temporary steady state measurement ultrasonic level meter structural schematic diagram；
Fig. 2 be the utility model proposes a kind of temporary steady state measurement ultrasonic level meter intermediate tube outline drawing；
Fig. 3 be the utility model proposes a kind of temporary steady state measurement ultrasonic level meter test circuit diagram；
Fig. 4 be the utility model proposes temporary steady state measurement simplified basic；
In figure: 1 measurement pipe, 2 testing containers, 3 intermediate tubes, 4 positive link stoppers, 5 cathode blocks, 6 conductive floating balls, 7 ultrasonic waves
Energy converter, 8 ultrasonic transmitter T, 9 ultrasonic receiver R, 10 displays, 11 synchronously control boxes, 12 control chips, 13 filtering
Device, 14 Electromotance Sensors, 15 signal amplifiers, 16 communicating pipes.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1, a kind of ultrasonic level meter of temporary steady state measurement, including measurement pipe 1, between measurement pipe 1 and testing container 2
It is communicated with intermediate tube 3, the opening at 3 both ends of intermediate tube is equipped with positive link stopper 4 and cathode block 5, and the middle part of intermediate tube 3 is equipped with
Conductive floating ball 6；The top of measurement pipe 1 is equipped with measuring part, and measuring part includes ultrasonic transducer 7, ultrasonic transmitter T8,
Ultrasonic receiver R9 and display 10, the lateral wall of measurement pipe 1 are equipped with synchronously control box 11, are equipped with control in synchronously control box 11
Coremaking piece 12, filter 13, Electromotance Sensor 14 and signal amplifier 15；
Referring to Fig. 3, the circuit connection diagram of the utility model: positive link stopper 4 and cathode block at 3 one end of intermediate tube
5 and Electromotance Sensor 14 form voltage circuit, the positive link stopper 4 and cathode block 5 at 3 other end of intermediate tube with it is another
A Electromotance Sensor 14 forms voltage circuit, and the test voltage signal polarity of two Electromotance Sensors 14 is opposite；Two electricity
Signal amplifier 15 is electrically connected in kinetic potential sensor 14, and two signal amplifiers 15 are electrically connected filter 13, ultrasound
Wave transducer 7 is also electrically connected filter 13, and filter 13 is connect with control chip 12, and control chip 12 and display 10 connect
It connects.
Referring to Fig. 2, the intermediate tube of the utility model uses three kinds of shapes, as follows: intermediate tube 3 is specially back-shaped pipe, intermediate
Conductive floating ball 6 there are two being set in pipe 3；Intermediate tube 3 is specifically ring pipe, sets that there are two conductive floating balls 6 in intermediate tube 3；Intermediate tube 3
Specifically spiral element, intermediate tube 3 is interior to be equipped with a conductive floating ball 6.
Referring to Fig.1-3, conductive floating ball 6 is specially the hollow sphere of electrically conductive graphite moldings formed therefrom, positive link stopper 4 and cathode block
5 be triangle conducting block, and positive link stopper 4 and cathode block 5 play a part of to stop conductive floating ball 6, while also leading as connection
Two electrodes of electric floating ball 6.
Referring to Fig.1, the top of the top of measurement pipe 1 and testing container 2 is equipped with communicating pipe 16, guarantee measurement pipe 1 with it is to be measured
Air pressure suffered by the liquid level of both containers 2 is identical, improves test accuracy.
The working principle of temporary steady state test: Electromotance Sensor 14 at 3 one end of intermediate tube, Electromotance Sensor at the other end
14 and ultrasonic transducer 7, signal wave figure is generated respectively during the test, when measurement pipe 1 is different from the liquid level of testing container 2
When, under the effect of liquid difference, water flow band moving conductive floating ball 6 flows in intermediate tube 3, when reaching one end of intermediate tube 3, contact anode
Link stopper 4 and cathode block 5 form voltage circuit with Electromotance Sensor 14, generate electromotive force signal, pass through signal amplifier 15
It is sent to filter 13；For ease of description, it is positive electromotive force signal with the signal of the Electromotance Sensor 14 of 3 one end of intermediate tube,
The other end is then negative electromotive force signal, shows that measurement pipe 1 is feed liquor state or liquid status out respectively；The alternating frequency of two kinds of signals
The uneven degree for just representing measurement pipe 1 Yu 2 liquid level of testing container, that is, represent the degree of fluctuation of the liquid level of testing container 2.
As shown in figure 4, when two kinds of signals equably change in the liquid level presentation for uniformly alternately, that is, showing testing container 2, at this time
It is the temporary stable state of liquid level to be measured.The average value of the not each time test numerical value of temporary stable state, with electric signal to entire test
The fluctuation status in stage carries out the identification measurement of stable state and unstable state, using temporary stable state as the testing time, with the measuring part (time difference
Method) testing time contrast, to test out the level value of temporary stable state, above is the principle of temporary steady state test.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (7)
1. a kind of ultrasonic level meter of temporary steady state measurement, including measurement pipe (1), which is characterized in that the measurement pipe (1) with it is to be measured
It is communicated between container (2) intermediate tube (3), the opening at intermediate tube (3) both ends is equipped with positive link stopper (4) and cathode gear
Block (5), the middle part of the intermediate tube (3) are equipped with conductive floating ball (6)；
The top of the measurement pipe (1) is equipped with measuring part, and the measuring part includes ultrasonic transducer (7), ultrasonic wave hair
Emitter T(8), ultrasonic receiver R(9) and display (10), the lateral wall of the measurement pipe (1) is equipped with synchronously control box
(11), control chip (12) is equipped in the synchronously control box (11), filter (13), Electromotance Sensor (14) and signal are put
Big device (15)；
Positive link stopper (4) and cathode block (5) at described intermediate tube (3) one end form electricity with an Electromotance Sensor (14)
Road is pushed back, the positive link stopper (4) and cathode block (5) at intermediate tube (3) other end and another Electromotance Sensor
(14) voltage circuit is formed, the test voltage signal polarity of two Electromotance Sensors (14) is opposite；
Two Electromotance Sensors (14) are electrically connected signal amplifier (15), two signal amplifiers (15)
Be electrically connected filter (13), the ultrasonic transducer (7) is also electrically connected filter (13), the filter (13) and
Chip (12) connection is controlled, the control chip (12) connect with display (10).
2. a kind of ultrasonic level meter of temporary steady state measurement according to claim 1, which is characterized in that the intermediate tube (3)
Specially back-shaped pipe, sets that there are two conductive floating balls (6) in the intermediate tube (3).
3. a kind of ultrasonic level meter of temporary steady state measurement according to claim 1, which is characterized in that the intermediate tube (3)
Specifically ring pipe, sets that there are two conductive floating balls (6) in the intermediate tube (3).
4. a kind of ultrasonic level meter of temporary steady state measurement according to claim 1, which is characterized in that the intermediate tube (3)
Specifically spiral element, the intermediate tube (3) is interior to be equipped with a conductive floating ball (6).
5. a kind of ultrasonic level meter of temporary steady state measurement according to claim 1 to 4, which is characterized in that the conduction
Floating ball (6) is specially the hollow sphere of electrically conductive graphite moldings formed therefrom.
6. a kind of ultrasonic level meter of temporary steady state measurement according to claim 5, which is characterized in that the anode link stopper
(4) and cathode block (5) is triangle conducting block.
7. a kind of ultrasonic level meter of temporary steady state measurement according to claim 1, which is characterized in that the measurement pipe (1)
Top and testing container (2) top be equipped with communicating pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920331923.3U CN209512988U (en) | 2019-03-15 | 2019-03-15 | A kind of ultrasonic level meter of temporary steady state measurement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920331923.3U CN209512988U (en) | 2019-03-15 | 2019-03-15 | A kind of ultrasonic level meter of temporary steady state measurement |
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| Publication Number | Publication Date |
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| CN209512988U true CN209512988U (en) | 2019-10-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654624A (en) * | 2021-07-21 | 2021-11-16 | 上海外高桥造船有限公司 | Ultrasonic liquid level sensing device |
-
2019
- 2019-03-15 CN CN201920331923.3U patent/CN209512988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654624A (en) * | 2021-07-21 | 2021-11-16 | 上海外高桥造船有限公司 | Ultrasonic liquid level sensing device |
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