CN209002203U - A kind of flow audio converting means - Google Patents
A kind of flow audio converting means Download PDFInfo
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- CN209002203U CN209002203U CN201820215278.4U CN201820215278U CN209002203U CN 209002203 U CN209002203 U CN 209002203U CN 201820215278 U CN201820215278 U CN 201820215278U CN 209002203 U CN209002203 U CN 209002203U
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- flow
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- cylinder
- ingress pipe
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Abstract
The utility model discloses a kind of flow audio converting means, including ingress pipe, main cylinder and secondary cylinder, ingress pipe, import measured fluid；Main cylinder occludes one end with both ends of the surface, and the central portion perforating in other end forms, it flows into the measured fluid imported from the ingress pipe along the inner peripheral surface of main cylinder, and is whirled up stream along inner circumferential surface, and flow out the swirling flow from the hole；Secondary cylinder, connects the hole of the other end of the main cylinder, and is provided projectingly, and flows into swirling flow from the main cylinder via the hole, the swirling flow is made to generate precessional motion and release to outside.The audio of frequency corresponding with the fluid flow of measured object can be easily transformed to.In addition, by listening its audio in the assay, by the sense of hearing of people can monitor flow number, and be easy to differentiate.
Description
Technical field
The utility model relates to the flow of measuring object is transformed to the technical field of audio frequency, and in particular to a kind of
Flow audio converting means.
Background technique
Device shown in Fig. 10 is the device of the fluid flow for measure object, has cylindrical pipe 3, cylindrical pipe 3
The expiration is passed through when being blown into expiration at a heat to outlet 5 from its entrance 4 with gentle throttle 1 and pressure valve 2
Pressure sensor 6 set on the upstream side of pressure valve 2 is transformed to electric signal.The electric signal of the transformation turns via amplifier 7, A/D
Parallel operation 8 is transformed to digital signal, and carries out calculation process by CPU9.Calculation process as the result is shown in display device 10, and
It is recorded in memory 11 (for example, referring to patent document 1).
Existing technical literature, patent document, patent document 1: Japanese Unexamined Patent Publication 07-167694 bulletin.
Utility model content
The purpose of this utility model is to overcome the shortage of prior art, and it is an object of the present invention to provide a kind of flow audio transformation dress
It sets, is had the following problems a little in existing flow audio converting means described above, that is, with expiration is blown at a heat, exhale
Gas passes through cylindrical pipe 3 at a heat, accordingly, it is difficult to be distinguished as in measurement.
The utility model is achieved through the following technical solutions:
A kind of flow audio converting means, including ingress pipe, main cylinder and secondary cylinder,
Ingress pipe imports measured fluid；
Main cylinder occludes one end, and the central portion perforating in other end is formed with both ends of the surface, make from
The measured fluid that the ingress pipe imports is flowed into along the inner peripheral surface of main cylinder, and is whirled up stream along inner circumferential surface,
And flow out the swirling flow from the hole；
Secondary cylinder, connects the hole of the other end of the main cylinder, and is provided projectingly, via the hole from the main cylinder
Swirling flow is flowed into, the swirling flow is made to generate precessional motion and release to outside.
The audio of frequency corresponding with the fluid flow of measured object can be easily transformed to.In addition, by surveying
Its fixed pleasant to the ear audio, by the sense of hearing of people can monitor flow number, and be easy to differentiate.
Further, the ingress pipe is arranged with the tangential direction of the inner peripheral surface of the main cylinder, along the tangent line from institute
It states ingress pipe and supplies the measured fluid into the main cylinder.
Measured fluid is flowed by the tangent line of the inner peripheral surface along main cylinder, prevents the generation of turbulent flow, one side energy on one side
Enough it is whirled up stream.
Further, the main cylinder is by the first side plate and the second side plate structure of its both ends of the surface of cylindrical cavity and occlusion
At being equipped with circular hole in the central portion of the second side plate, be equipped with ingress pipe in the inner peripheral surface of the cylindrical cavity second opens
Mouthful, the ingress pipe is arranged close to the first side plate side for occlusion, in addition, making the quilt flowed into from the first opening of ingress pipe
It measures fluid and is flowed into from the second opening along the inner peripheral surface of the main cylinder, and be whirled up stream along inner circumferential surface.
Further, the ingress pipe leans on the position of proximal panel side in the installation site of main cylinder, and is measured fluid
The consistent mode of inner peripheral surface tangential direction of blow-off direction and main cylinder is installed, so as to generate the less swirling flow of turbulent flow.
Further, the secondary cylinder is made of the cylinder of both ends open, is had and is arranged in the of the main cylinder
The through hole of the diameter same diameter in the hole of two side plates, and installed in a manner of surrounding circular hole by the inner peripheral surface of secondary cylinder, make
Measured fluid as the swirling flow is flowed into from circular hole, is carried out precessional motion to swirling flow in secondary main cylinder chamber room and is put
Out, swirling flow is with horn-like diffusion；The swirling flow of the horn-like diffusion issues audio by precessional motion；The frequency of the audio
It is becoming proportionately larger with flow；Measurement personnel can grasp the size of flow as a result, with the frequency of audio.
It further, further include Electret Condencer Microphone, filter, crest frequency detection circuit, crest frequency detection circuit
And integrating circuit, the Electret Condencer Microphone are proximate to secondary main cylinder chamber setting, the Electret Condencer Microphone detection by from
The audio that the swirling flow that the main cylinder chamber of pair is flowed out along with precessional motion generates；The filter is to remove the circle
The filter of the noise generated in cylindrical chamber, secondary main cylinder chamber, the crest frequency detection circuit are inputted from the mistake
The audio signal of the frequency of filter supply, and the crest frequency detection circuit of the crest frequency using FFT detection audio signal, institute
The crest frequency that crest frequency detection circuit will be detected by crest frequency detection circuit is stated, its instantaneous stream is calculated according to crest frequency
Amount, which integrate by the integrating circuit to calculate expiratory gas flow.
The utility model is realized by following another technical solutions:
A kind of flow audio conversion method, it is characterised in that:
Measured fluid is imported from ingress pipe；Make the measured fluid imported from the ingress pipe along main cylinder 30
Inner peripheral surface flows into, and is whirled up stream along inner circumferential surface, and flow out the swirling flow from the hole；
Swirling flow is flowed into from the main cylinder via the hole, the swirling flow is made to generate precessional motion and release to outside.
Further, the ingress pipe leans on the position of proximal panel side in the installation site of main cylinder, and is measured fluid
The consistent mode of inner peripheral surface tangential direction of blow-off direction and main cylinder is installed, so as to generate the less swirling flow of turbulent flow.
Further, the secondary cylinder is made of the cylinder of both ends open, is had and is arranged in the of the main cylinder
The through hole of the diameter same diameter in the hole of two side plates, and installed in a manner of surrounding circular hole by the inner peripheral surface of secondary cylinder, make
Measured fluid as the swirling flow is flowed into from circular hole, is carried out precessional motion to swirling flow in secondary main cylinder chamber room and is put
Out, swirling flow is with horn-like diffusion；The swirling flow of the horn-like diffusion issues audio by precessional motion；The frequency of the audio
It is becoming proportionately larger with flow；Measurement personnel can grasp the size of flow as a result, with the frequency of audio.
Further, Electret Condencer Microphone detection by from the main cylinder chamber of the pair along with precessional motion and flow out
The audio that swirling flow generates；Filter is the filter for removing the cylindrical cavity, the noise generated in secondary main cylinder chamber,
Crest frequency detection circuit is to input the audio signal of the frequency supplied from the filter, and detect audio signal using FFT
Crest frequency crest frequency detection circuit, crest frequency detection circuit by the peak value detected by crest frequency detection circuit frequency
Rate calculates its instantaneous flow according to crest frequency, which integrate by the integrating circuit to calculate expiratory gas flow.
The utility model compared with prior art, has the following advantages and benefits:
Flow is transformed to the frequency of audio by a kind of flow audio converting means of the utility model, and measurement personnel are by listening
The audio, according to frequency variation can judge flow number, realize for measurement in.Easily it can be transformed to and be measured
The audio of the corresponding frequency of the fluid flow of object.In addition, can be monitored by listening its audio in the assay by the sense of hearing of people
Flow number, and be easy differentiate.Measured fluid is flowed by the tangent line of the inner peripheral surface along main cylinder, prevents turbulent flow on one side
Generation, stream can be whirled up on one side.
The structure of the device of the utility model is simple, and can grasp flow with the frequency of audio, therefore, is easy prison
It surveys, and can quantitatively grasp flow.In addition to this, in the assay, it can be experienced by the sense of hearing of people and be transformed to frequency
The size of flow.
In addition, flow into measured fluid by the tangent line of the inner peripheral surface along main cylinder, the generation of turbulent flow is prevented on one side, one
Side can be whirled up stream, and precision can be improved.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the perspective view for the flow detector for illustrating one embodiment of the utility model.
Fig. 2 is the side view explanatory diagram of the perspective view of Fig. 1 from Y-direction.
Fig. 3 is that the perspective view of Fig. 1 faces explanatory diagram from Z-direction.
Fig. 4 is the CD cross sectional illustration figure of flow audio converting means shown in Fig. 3.
Fig. 5 is the AB cross sectional illustration figure of flow audio converting means shown in Fig. 2.
Fig. 6 is that measured fluid M flows into air inlet pipe 20, becomes swirling flow N in main cylinder 30 and until to secondary cylinder 40
The explanatory diagram of outflow.
Fig. 7 is that measured fluid M is flowed into main cylinder 30 and become swirling flow N and flow out to secondary cylinder 40, later until with
The explanatory diagram released of precessional motion.
Fig. 8 is the circuit block explanatory diagram until calculating flow according to the frequency signal exported from microphone 50.
Fig. 9 is the explanatory diagram for illustrating to export crest frequency from microphone 50.
Figure 10 is the cross sectional illustration figure for illustrating conventional example.
Label and corresponding parts title in attached drawing:
1- throttle, 2- pressure valve, 3- cylindrical pipe, 4- entrance, the outlet 5-, 6- pressure sensor, 7- amplifier, 8-A/
D converter, 9-CPU, 10- display device, 11- memory, 20- ingress pipe, 20a- first are open, and 20b- second is open, 30- master
Cylinder, the main cylinder chamber of 30a-, the first side plate of 30b-, the second side plate of 30c-, 30d- circular hole, 40- pair cylinder, the secondary main circle of 40a-
Barrel chamber room, 50- Electret Condencer Microphone, 51- filter, 52- crest frequency detection circuit, 53- instantaneous flow, 54- integral electricity
Road.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
A kind of flow audio converting means of the utility model, hereinafter, illustrating the implementation of the utility model based on FIG. 1 to FIG. 9
Mode.
In figure, 20 be the ingress pipe (air inlet pipe) of measured fluid circulation tubular, its both ends be equipped with the first opening 20a,
Second opening 20b.
30 be the main circle formed by cylindrical cavity 30a with the first side plate 30b, the second side plate 30c for occluding its both ends of the surface
Cylinder, the central portion of the second side plate 30c in its first side plate 30b, the second side plate 30c are equipped with circular hole 30d.In addition, upper
The inner peripheral surface for stating cylindrical cavity 30a is equipped with the front end of one of the above-mentioned air inlet pipe 20 opening part 20b, also, above-mentioned
Air inlet pipe 20 is arranged close to the first side side plate 30b for occlusion.In addition, making the first opening 20a from above-mentioned air inlet pipe 20
The measured fluid M flowed into is flowed into from another second opening 20b along the inner peripheral surface of above-mentioned main cylinder 30, and along inner circumferential surface
It is whirled up stream N.
It should be noted that as above-mentioned, air inlet pipe 20 is to installing the installation site of main cylinder 30 with close in air inlet pipe 20
The position of first side side plate 30b, and the blow-off direction of measured fluid M and the inner peripheral surface tangent line of main cylinder 30 are (in Fig. 6, with list
Chain-dotted line indicates) the consistent mode in direction installs, and thereby, it is possible to generate the less swirling flow N of turbulent flow.
Secondary cylinder 40 is the secondary cylinder being made of the cylinder of both ends open, has and is arranged in the of above-mentioned main cylinder 30
The through hole of the diameter same diameter of the circular hole 30d of two side plate 30c, and above-mentioned circular hole is surrounded with the inner peripheral surface by secondary cylinder 40
The mode of 30d is installed.The measured fluid for becoming above-mentioned swirling flow N is flowed into from above-mentioned circular hole 30d, in secondary main cylinder chamber
Precessional motion is carried out to swirling flow in 40aa and is released, swirling flow is with horn-like diffusion.It should be noted that the horn-like diffusion
Swirling flow P audio is issued by precessional motion.As shown in figure 9, the frequency of the audio is becoming proportionately larger with flow.By
This, measurement personnel can grasp the size of flow with the frequency of audio.
Electret Condencer Microphone 50 is provided near the main cylinder chamber 40a of above-mentioned pair, and is detected by from the above-mentioned main circle of pair
The Electret Condencer Microphone for the audio that the swirling flow P that barrel chamber room 40a is flowed out along with precessional motion is generated.51 be to remove above-mentioned circle
The filter of the noise generated in cylindrical chamber 30a, secondary main cylinder chamber 40aa, 52 be that input is supplied from above-mentioned filter 51
Frequency audio signal, and using FFT (Fast Fourier Transform) detection audio signal crest frequency crest frequency examine
Slowdown monitoring circuit, the crest frequency detected by crest frequency detection circuit 52 calculate its instantaneous stream according to crest frequency as shown in Figure 9
Amount integrates the value by aftermentioned integrating circuit 54, and calculates expiratory gas flow.
It should be noted that the left side of bottom right oblique line T of above-mentioned crest frequency detection circuit 52 detection in Fig. 9 occur with
The frequency of the peak value waveform for the chevron that symbol S is indicated, judgement is closest with the waveform of which flow, then, calculates instantaneous flow
53, the value is integrated by aftermentioned integrating circuit 54, and calculate expiratory gas flow.Crest frequency detection circuit 52 can adopt
Its function is realized with AD637 peak detection circuit；Integrating circuit 54 can realize its function using RC integrating circuit.
Flow is transformed to the frequency of audio by a kind of flow audio converting means of the utility model, and measurement personnel are by listening
The audio, according to frequency variation can judge flow number, realize for measurement in.Easily it can be transformed to and be measured
The audio of the corresponding frequency of the fluid flow of object.In addition, can be monitored by listening its audio in the assay by the sense of hearing of people
Flow number, and be easy differentiate.Measured fluid is flowed by the tangent line of the inner peripheral surface along main cylinder, prevents turbulent flow on one side
Generation, stream can be whirled up on one side.
The structure of the device of the utility model is simple, and can grasp flow with the frequency of audio, therefore, is easy prison
It surveys, and can quantitatively grasp flow.In addition to this, in the assay, it can be experienced by the sense of hearing of people and be transformed to frequency
The size of flow.
In addition, flow into measured fluid by the tangent line of the inner peripheral surface along main cylinder, the generation of turbulent flow is prevented on one side, one
Side can be whirled up stream, and precision can be improved.
Embodiment 2
A kind of flow audio conversion method of the utility model, hereinafter, illustrating the implementation of the utility model based on FIG. 1 to FIG. 9
Mode.
A kind of flow audio conversion method imports measured fluid from ingress pipe 20；Make from the ingress pipe 20 importing
Measured fluid is flowed into along the inner peripheral surface of main cylinder 30, and is whirled up stream along inner circumferential surface, and make the swirling flow from
The hole outflow；
Swirling flow is flowed into from the main cylinder 30 via the hole, so that the swirling flow is generated precessional motion and is put to outside
Out.
The ingress pipe 20 main cylinder 30 installation site close to the position of the first side side plate 30b, and measured fluid
The consistent mode of inner peripheral surface tangential direction of blow-off direction and main cylinder 30 install, so as to generate the less convolution of turbulent flow
Stream.
The pair cylinder 40 is made of the cylinder of both ends open, is had and the second side plate for being arranged in the main cylinder 30
The through hole of the diameter same diameter of the circular hole 30d of 30c, and in a manner of surrounding circular hole 30d by the inner peripheral surface of secondary cylinder 40
Installation, the measured fluid for becoming the swirling flow are flowed into from circular hole 30d, are flowed into secondary main cylinder chamber 40aa to convolution
Row precessional motion is simultaneously released, and swirling flow is with horn-like diffusion；The swirling flow of the horn-like diffusion issues sound by precessional motion
Frequently；The frequency of the audio is becoming proportionately larger with flow；Measurement personnel can grasp the big of flow with the frequency of audio as a result,
It is small.
The detection of Electret Condencer Microphone 50 by from the main cylinder chamber 40a of the pair along with precessional motion and the convolution flowed out
The raw audio of miscarriage；Filter 51 is to remove the noise generated in the cylindrical cavity 30a, secondary main cylinder chamber 40aa
Filter, crest frequency detection circuit 52 are to input the audio signal of the frequency supplied from the filter 51, and examine using FFT
The crest frequency detection circuit of the crest frequency of audio signal is surveyed, crest frequency detection circuit 52 will be by crest frequency detection circuit
The crest frequency of 52 detections, calculates its instantaneous flow according to crest frequency, which is accumulated by the integrating circuit 54
Divide and calculates expiratory gas flow.
Flow is transformed to the frequency of audio by a kind of flow audio conversion method of the utility model, and measurement personnel are by listening
The audio, according to frequency variation can judge flow number, realize for measurement in.Easily it can be transformed to and be measured
The audio of the corresponding frequency of the fluid flow of object.In addition, can be monitored by listening its audio in the assay by the sense of hearing of people
Flow number, and be easy differentiate.Measured fluid is flowed by the tangent line of the inner peripheral surface along main cylinder, prevents turbulent flow on one side
Generation, stream can be whirled up on one side.
The utility model can grasp flow with the frequency of audio, therefore, be easy monitoring, and can quantitatively grasp stream
Amount.In addition to this, in the assay, the size for being transformed to the flow of frequency can be experienced by the sense of hearing of people.In addition, passing through edge
The tangent line of the inner peripheral surface of main cylinder flow into measured fluid, prevent the generation of turbulent flow on one side, stream can be whirled up on one side, can
Improve precision.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of flow audio converting means, including ingress pipe (20), main cylinder (30) and secondary cylinder (40),
It is characterized by:
Ingress pipe (20) imports measured fluid；
Main cylinder (30) occludes one end, and the central portion perforating in other end is formed with both ends of the surface, make from
The measured fluid that the ingress pipe (20) imports is flowed into along the inner peripheral surface of main cylinder (30), and is generated along inner circumferential surface
Swirling flow, and flow out the swirling flow from the hole；
Secondary cylinder (40), connects the hole of the other end of the main cylinder (30), and is provided projectingly, via the hole from the master
Cylinder (30) flows into swirling flow, and the swirling flow is made to generate precessional motion and release to outside.
2. a kind of flow audio converting means according to claim 1, it is characterised in that: the ingress pipe (20) is with described
The tangential direction of the inner peripheral surface of main cylinder (30) is arranged, interior from the ingress pipe (20) to the main cylinder (30) along the tangent line
Supply the measured fluid.
3. a kind of flow audio converting means according to claim 1, it is characterised in that: the main cylinder (30) is by justifying
Cylindrical chamber (30a) and the first side plate (30b) and the second side plate (30c) composition for occluding its both ends of the surface, at the second side plate (30c)
Central portion be equipped with circular hole (30d), be equipped with ingress pipe (20) in the inner peripheral surface of the cylindrical cavity (30a) second opens
Mouth (20b), the ingress pipe (20) is arranged close to the first side plate side (30b) for occlusion, in addition, making from ingress pipe (20)
First opening (20a) flow into measured fluid from second opening (20b) along the main cylinder (30) inner peripheral surface flow into,
And stream is whirled up along inner circumferential surface.
4. a kind of flow audio converting means according to claim 2, it is characterised in that: the ingress pipe (20) is in main circle
The installation site of cylinder (30) is close to the position of the side the first side plate (30b), and the blow-off direction of measured fluid and main cylinder (30)
The consistent mode of inner peripheral surface tangential direction install, so as to generate the less swirling flow of turbulent flow.
5. a kind of flow audio converting means according to claim 3, it is characterised in that: the pair cylinder (40) is by two
The cylinder of end opening is constituted, and has the diameter phase with the circular hole (30d) for the second side plate (30c) for being arranged in the main cylinder (30)
It is installed with the through hole of diameter, and in such a way that the inner peripheral surface by secondary cylinder (40) surrounds circular hole (30d), becomes described return
The measured fluid of eddy flow is flowed into from circular hole (30d), is carried out precessional motion to swirling flow in secondary main cylinder chamber (40a) and is put
Out, swirling flow is with horn-like diffusion；The swirling flow of the horn-like diffusion issues audio by precessional motion；The frequency of the audio
It is becoming proportionately larger with flow；Measurement personnel can grasp the size of flow as a result, with the frequency of audio.
6. a kind of flow audio converting means according to claim 5, it is characterised in that: further include Electret Condencer Microphone
(50), filter (51), crest frequency detection circuit (52), crest frequency detection circuit (52) and integrating circuit (54), it is described
Electret Condencer Microphone (50) is proximate to secondary main cylinder chamber (40a) setting, and Electret Condencer Microphone (50) detection is by from institute
State the audio that the swirling flow that secondary main cylinder chamber (40a) is flowed out along with precessional motion generates；The filter (51) is to remove
Go the filter of the cylindrical cavity (30a), the middle noise generated of secondary main cylinder chamber (40a), the crest frequency detection
Circuit (52) is the audio signal for the frequency that input is supplied from the filter (51), and uses the peak of FFT detection audio signal
It is worth the crest frequency detection circuit (52) of frequency, the crest frequency detected by crest frequency detection circuit (52), according to peak value frequency
Rate calculates its instantaneous flow, which integrate calculating expiratory gas flow by the integrating circuit (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820215278.4U CN209002203U (en) | 2018-02-07 | 2018-02-07 | A kind of flow audio converting means |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820215278.4U CN209002203U (en) | 2018-02-07 | 2018-02-07 | A kind of flow audio converting means |
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| Publication Number | Publication Date |
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| CN209002203U true CN209002203U (en) | 2019-06-18 |
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ID=66794637
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| CN201820215278.4U Active CN209002203U (en) | 2018-02-07 | 2018-02-07 | A kind of flow audio converting means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108337602A (en) * | 2018-02-07 | 2018-07-27 | 宋军 | A kind of flow audio converting means and transform method |
-
2018
- 2018-02-07 CN CN201820215278.4U patent/CN209002203U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108337602A (en) * | 2018-02-07 | 2018-07-27 | 宋军 | A kind of flow audio converting means and transform method |
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Effective date of registration: 20200907 Address after: 1405-1, building 4, 209 Zhuyuan Road, high tech Zone, Suzhou City, Jiangsu Province Patentee after: Suzhou sensi Microelectronics Technology Co., Ltd Address before: 100080 No. 508, 901 Floor B, Zhongguancun, Haidian District, Beijing Co-patentee before: BEIJING BOSHI LINKAG TECHNOLOGY Co.,Ltd. Patentee before: Song Jun |
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