CN108132299A - A kind of air bubble sensor and method for bubble in signal piping - Google Patents
A kind of air bubble sensor and method for bubble in signal piping Download PDFInfo
- Publication number
- CN108132299A CN108132299A CN201810182668.0A CN201810182668A CN108132299A CN 108132299 A CN108132299 A CN 108132299A CN 201810182668 A CN201810182668 A CN 201810182668A CN 108132299 A CN108132299 A CN 108132299A
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- signal
- bubble
- mcu module
- control unit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/4454—Signal recognition, e.g. specific values or portions, signal events, signatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/024—Mixtures
- G01N2291/02433—Gases in liquids, e.g. bubbles, foams
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- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Signal Processing (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of air bubble sensors and method for bubble in signal piping, probe, ultrasonic wave receiving transducer are sent including micro-control unit MCU module, pulse generating circuit, operational amplifier circuit, ultrasonic wave, the pulse generating circuit, operational amplifier circuit all connect micro-control unit MCU module, the pulse generating circuit connection ultrasonic wave sends probe, and the operational amplifier circuit connects ultrasonic wave receiving transducer.Air bubble sensor of the present invention is simple in structure, at low cost, and the present invention realizes that identification is detected in the active to interference signal, improves the accuracy of air bubble sensor, improves the reliability of bubble in signal piping.
Description
Technical field
The present invention relates to a kind of air bubble sensors and method for bubble in signal piping.
Background technology
Acoustic impedance of the ultrasonic wave in different propagation mediums is different, very big in air and the acoustic impedance difference in water,
Utilize sensor of this characteristic of ultrasonic wave designed for detection infusion pipeline bubble.Existing detection scheme is according to master chip
Received signal power makes a decision, None- identified useful signal or interference signal, and misrecognition situation easily occurs.
Invention content
The purpose of the present invention is overcoming the shortcomings of in existing product, a kind of bubble for bubble in signal piping is provided and is passed
Sensor and method.
In order to achieve the above object, the present invention is achieved by the following technical solutions：
A kind of air bubble sensor for bubble in signal piping, including micro-control unit MCU module, pulse generation electricity
Road, operational amplifier circuit, ultrasonic wave send probe, ultrasonic wave receiving transducer, and the pulse generating circuit, operational amplifier circuit all connect micro-control
Unit MCU module processed, the pulse generating circuit connection ultrasonic wave send probe, and the operational amplifier circuit connection ultrasonic wave, which receives, to be visited
Head.
Pulse generating circuit is used to send pulse.
A kind of method for bubble in signal piping includes the following steps：
Step S1：Ultrasonic wave sends probe and sends ultrasonic signal by pulse generating circuit；
Step S2：Micro-control unit MCU module reads reception signal and judges whether to receive signal, if micro-control unit
MCU module is not received by signal, then micro-control unit MCU module output has bubble regime signal, otherwise jumps to step S3；
Step S3：Ultrasonic wave, which sends probe, to be stopped sending ultrasonic signal by pulse generating circuit, then microcontroller list
First MCU module continues to determine whether to receive signal, if micro-control unit MCU module is to receive signal, this signal is
Abnormal interference signal, micro-control unit MCU module output have bubble regime signal, and otherwise micro-control unit MCU module exports
Bubble free state signal jumps to step S1.
Beneficial effects of the present invention are as follows：Air bubble sensor of the present invention is simple in structure, at low cost, and the present invention is realized to interference
The active detecting identification of signal improves the accuracy of air bubble sensor, improves the reliability of bubble in signal piping.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the program flow diagram of the present invention.
Specific embodiment
Technical scheme of the present invention is described further with reference to the accompanying drawings of the specification：
As shown in Figure 1, a kind of air bubble sensor for bubble in signal piping, including micro-control unit MCU module 1,
Pulse generating circuit 2, operational amplifier circuit 3, ultrasonic wave send probe 4, ultrasonic wave receiving transducer 5, the pulse generating circuit 2, fortune
Electric discharge road 3 all connects micro-control unit MCU module 1, and the pulse generating circuit 2 connects ultrasonic wave and sends probe 4, the amplifier
Circuit 3 connects ultrasonic wave receiving transducer 5, and the pulse generating circuit 2 is used to send pulse.
As shown in Fig. 2, a kind of method for bubble in signal piping, includes the following steps：
Step S1：Ultrasonic wave sends probe 4 and sends ultrasonic signal by pulse generating circuit 2；
Step S2：Micro-control unit MCU module 1 reads reception signal and judges whether to receive signal, if micro-control unit
MCU module 1 is not received by signal, then the output of micro-control unit MCU module 1 has bubble regime signal, otherwise jumps to step S3；
Step S3：Ultrasonic wave, which sends probe 4, to be stopped sending ultrasonic signal by pulse generating circuit 2, then microcontroller
Unit MCU module 1 continues to determine whether to receive signal, if micro-control unit MCU module 1 is to receive signal, this signal
As abnormal interference signal, the output of micro-control unit MCU module 1 have bubble regime signal, otherwise micro-control unit MCU module
1 output bubble free state signal, jumps to step S1.
For air bubble sensor using the mode that is periodically detected, ultrasonic wave sends 4 transmitting ultrasonic wave of probe, ultrasonic wave receiving transducer
5 receive signal send micro-control unit MCU module 1 to judge through operational amplifier circuit, if micro-control unit MCU module 1 is not received by
Ultrasonic signal, the then output of micro-control unit MCU module 1 have bubble regime signal, then it represents that have interference signal, otherwise ultrasonic wave
It sends probe 4 to stop sending ultrasonic signal by pulse generating circuit 2, then micro-control unit MCU module 1 judges whether to connect
Signal is received, micro-control unit MCU module 1, which exports, if being to receive signal if micro-control unit MCU module 1 bubble regime letter
Number, then it represents that there is interference signal, otherwise micro-control unit MCU module 1 exports bubble free state signal, jumps to step S1.It is former
Reason is that under normal circumstances, when stopping sending ultrasonic wave, micro-control unit MCU module 1 is can not to receive signal, at this time if micro-
Control unit MCU module 1, which recognizes significant level, to be stood and receives signal, caused by this signal is interference signal.
Air bubble sensor of the present invention is simple in structure, at low cost, and the present invention realizes that identification is detected in the active to interference signal, carries
The high accuracy of air bubble sensor, improves the reliability of bubble in signal piping, and ultrasonic bubble sensor of the invention can have
Effect detects signal and identifies interference signal, and the accuracy rate height of bubble, will not identify mistake in present invention identification pipeline.
It should be noted that listed above is only a kind of specific embodiment of the invention.It is clear that the invention is not restricted to
Upper embodiment, can also be there are many deforming, in short, those of ordinary skill in the art can directly lead from present disclosure
All deformations for going out or associating, are considered as protection scope of the present invention.
Claims (3)
1. a kind of air bubble sensor for bubble in signal piping, which is characterized in that including micro-control unit MCU module (1),
Pulse generating circuit (2), operational amplifier circuit (3), ultrasonic wave send probe (4), ultrasonic wave receiving transducer (5), the pulse generation
Circuit (2), operational amplifier circuit (3) all connect micro-control unit MCU module (1), pulse generating circuit (2) the connection ultrasonic wave hair
Send probe (4), operational amplifier circuit (3) the connection ultrasonic wave receiving transducer (5).
2. a kind of air bubble sensor for bubble in signal piping according to claim 1, the pulse generating circuit (2)
For sending pulse.
3. a kind of method for bubble in signal piping, based on a kind of for bubble in signal piping described in claim 1
Air bubble sensor, which is characterized in that include the following steps：
Step S1：Ultrasonic wave sends probe (4) and sends ultrasonic signal by pulse generating circuit (2)；
Step S2：Micro-control unit MCU module (1) reads reception signal and judges whether to receive signal, if micro-control unit MCU
Module (1) is not received by signal, then micro-control unit MCU module (1) output has bubble regime signal, otherwise jumps to step
S3；
Step S3：Ultrasonic wave, which sends probe (4), to be stopped sending ultrasonic signal by pulse generating circuit (2), then microcontroller
Unit MCU module (1) continues to determine whether to receive signal, if micro-control unit MCU module (1) is to receive signal, this
Signal is abnormal interference signal, and micro-control unit MCU module (1) output has bubble regime signal, otherwise micro-control unit
MCU module (1) exports bubble free state signal, jumps to step S1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810182668.0A CN108132299A (en) | 2018-03-06 | 2018-03-06 | A kind of air bubble sensor and method for bubble in signal piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810182668.0A CN108132299A (en) | 2018-03-06 | 2018-03-06 | A kind of air bubble sensor and method for bubble in signal piping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108132299A true CN108132299A (en) | 2018-06-08 |
Family
ID=62431373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810182668.0A Pending CN108132299A (en) | 2018-03-06 | 2018-03-06 | A kind of air bubble sensor and method for bubble in signal piping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108132299A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588181A (en) * | 2021-07-23 | 2021-11-02 | 苏州浪潮智能科技有限公司 | Negative pressure liquid cooling system air leakage detection system, method and device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183797A (en) * | 2011-03-04 | 2011-09-14 | 西安交通大学 | Ultrasonic air bubble detection device applicable to biological microtubules |
| CN103055364A (en) * | 2013-01-21 | 2013-04-24 | 北京大德海纳医疗科技有限公司 | Bubble monitoring device for portable blood purification system |
| CN105222833A (en) * | 2015-10-26 | 2016-01-06 | 上海理工大学 | The measuring method of Air Bubble Size, number and movement velocity in biphase gas and liquid flow |
| CN105688303A (en) * | 2016-01-15 | 2016-06-22 | 北京大德海纳医疗科技有限公司 | Portable blood purifying system bubble monitoring device and method |
| CN106075668A (en) * | 2016-08-12 | 2016-11-09 | 董稳 | Air detection device in a kind of infusion pipeline |
| CN208611483U (en) * | 2017-07-26 | 2019-03-19 | 深圳市好克医疗仪器股份有限公司 | A kind of infusion pump systems with the real-time self-checking function of bubble circuit |
-
2018
- 2018-03-06 CN CN201810182668.0A patent/CN108132299A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183797A (en) * | 2011-03-04 | 2011-09-14 | 西安交通大学 | Ultrasonic air bubble detection device applicable to biological microtubules |
| CN103055364A (en) * | 2013-01-21 | 2013-04-24 | 北京大德海纳医疗科技有限公司 | Bubble monitoring device for portable blood purification system |
| CN105222833A (en) * | 2015-10-26 | 2016-01-06 | 上海理工大学 | The measuring method of Air Bubble Size, number and movement velocity in biphase gas and liquid flow |
| CN105688303A (en) * | 2016-01-15 | 2016-06-22 | 北京大德海纳医疗科技有限公司 | Portable blood purifying system bubble monitoring device and method |
| CN106075668A (en) * | 2016-08-12 | 2016-11-09 | 董稳 | Air detection device in a kind of infusion pipeline |
| CN208611483U (en) * | 2017-07-26 | 2019-03-19 | 深圳市好克医疗仪器股份有限公司 | A kind of infusion pump systems with the real-time self-checking function of bubble circuit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588181A (en) * | 2021-07-23 | 2021-11-02 | 苏州浪潮智能科技有限公司 | Negative pressure liquid cooling system air leakage detection system, method and device |
| CN113588181B (en) * | 2021-07-23 | 2024-02-27 | 苏州浪潮智能科技有限公司 | Negative pressure liquid cooling system air leakage detection system, method and device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180608 |
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| RJ01 | Rejection of invention patent application after publication |