CN206192417U - Ultrasonic flow sensor and ultrasonic flowmeter - Google Patents
Ultrasonic flow sensor and ultrasonic flowmeter Download PDFInfo
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- CN206192417U CN206192417U CN201621182515.9U CN201621182515U CN206192417U CN 206192417 U CN206192417 U CN 206192417U CN 201621182515 U CN201621182515 U CN 201621182515U CN 206192417 U CN206192417 U CN 206192417U
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- flow sensor
- base housing
- pcb board
- ultrasonic flow
- ultrasonic
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Abstract
The utility model discloses an ultrasonic flow sensor and ultrasonic flowmeter, ultrasonic flow sensor includes the shell body and sets up inverting element, temperature probe, connecting wire and PCB board in the shell body, the connecting wire is connected the inverting element with the PCB board, the lead -out wire of temperature probe with the PCB board is connected, the head outside of temperature probe is equipped with heat guiding element. Ultrasonic flow sensor and ultrasonic flowmeter through set up the temperature probe in the shell body, can the convection cell temperature measure, and the ultrasonic signal union operation processing that the inverting element can be caught to the PCB board converts digital traffic signal into, follows the fluid temperature (F. T. ) information that records according to the temperature probe to compensate the fluid flow under the different temperatures simultaneously, simple structure, and measurement accuracy is high.
Description
Technical field
The utility model is related to ultrasonic sensor technical field, more particularly to a kind of ultrasonic flow sensor and ultrasound
Low.
Background technology
Ultrasonic flowmeter be it is a kind of according to flow of fluid when ultrasonic beam spread speed measure of the change fluid volume
Device, wherein, ultrasonic flow sensor is the core component of ultrasonic flowmeter.Because ultrasonic velocity has with liquid
Temperature change and the characteristic that changes, temperature change have large effect to the certainty of measurement of ultrasonic flowmeter.Traditional, pass through
The perforate assembling temperature probe in the body of ultrasonic flowmeter, with fluid temperature (F.T.) in the body for meeting measurement ultrasonic flowmeter
Requirement.But, using aforesaid way, the structure of ultrasonic flowmeter is complex, and temperature probe is inserted in body
The influence that meeting stream field is caused.
The content of the invention
Based on this, it is necessary to provide a kind of ultrasonic flow sensor and ultrasonic flowmeter, ultrasonic flow sensing
The certainty of measurement of device and ultrasonic flowmeter is higher, simple structure.
Its technical scheme is as follows：
A kind of ultrasonic flow sensor, including shell body and the inverting element, the thermometric that are arranged in the shell body
Probe, connecting line and pcb board, the connecting line connect the inverting element and the pcb board, the lead-out wire of the temperature probe
It is connected with the pcb board, the head outside of the temperature probe is provided with heat conducting element.
Wherein in one embodiment, the ultrasonic flow sensor also includes embedding glue-line, and the shell body includes
Base housing and the base housing being tightly connected with the base housing, the base housing near the base housing the
One end is provided with the first installation cavity, and the inverting element is arranged in the first installation cavity, and the base housing is away from institute
The first end for stating base housing is provided with the second installation cavity, and the pcb board is arranged in the second installation cavity, the embedding
Glue-line is arranged on the first end of the base housing, and the pcb board is sealed in the base housing.
Wherein in one embodiment, the head of the temperature probe is located at the inverting element and the base housing
Between the wall of side, the base housing is provided with cable-through hole, and the lead-out wire of the temperature probe passes through the cable-through hole and the PCB
Plate is connected.
Wherein in one embodiment, the second end of the base housing is provided with for stretching into the first installation cavity body
Boss, the boss be provided with matched with the inverting element the 3rd installation cavity and the head with the temperature probe
The avoidance breach of matching, the inverting element is located in the described 3rd installation cavity, and the first end margin of the base housing sets
There are the installing plate matched with the first end of the base housing, the first end of the base housing and the second of the base housing
End is tightly connected.
Wherein in one embodiment, the ultrasonic flow sensor also includes cushion pad, and the cushion pad is arranged on
In the 3rd installation cavity, and the cushion pad is located between the inverting element and the base housing.
Wherein in one embodiment, the ultrasonic flow sensor also includes the first double faced adhesive tape, described first pair
One side of face sticker is pasted onto on the described first bottom surface for installing cavity, and it is two-sided that the inverting element is pasted onto described first
On another side of sticker.
Wherein in one embodiment, the ultrasonic flow sensor also includes the second double faced adhesive tape, described second pair
One side of face sticker is pasted onto on the described second bottom surface for installing cavity, and the pcb board is pasted onto second double faced adhesive tape
On another side of patch.
Wherein in one embodiment, the ultrasonic flow sensor also includes rs 232 serial interface signal line and from probe signal
Line, one end of the rs 232 serial interface signal line is connected with the pcb board, and the other end of the rs 232 serial interface signal line is used to connect display,
Described one end from probe signal line is connected with the pcb board, and the other end from probe signal line is used to connect from probe
Flow sensor.
Wherein in one embodiment, the temperature probe is NTC (Negative Temperature
Coefficient, negative temperature coefficient) thermistor.
A kind of ultrasonic flowmeter, including sensed from probe flow sensor, display and described ultrasonic flow
Device, it is described from probe flow sensor be connected from probe signal line with the ultrasonic flow sensor, the display and
The rs 232 serial interface signal line connection of the ultrasonic flow sensor.
It is appreciated that term " first ", " second " used in it etc. is used to distinguish object herein, but these are right
As should not be limited by these terms.
The beneficial effects of the utility model are：
The ultrasonic flow sensor, by setting temperature probe in shell body, can survey to fluid temperature (F.T.)
Amount, inverting element is connected by connecting line with pcb board, and the lead-out wire of temperature probe is also connected with pcb board, when measuring,
The ultrasonic signal union treatment that pcb board can catch inverting element is converted to digital fluid signal, while with according to thermometric
The fluid temperature information that probe is measured is compensated to the fluid flow under different temperatures, and certainty of measurement is high, is visited by thermometric
The outside of head sets heat-conducting unit, quickly can conduct to temperature probe the fluid temperature (F.T.) in ultrasonic flowmeter body,
The sensitivity of temperature probe is improved, certainty of measurement is further improved.The ultrasonic flow sensor, can avoid in ultrasonic wave
Perforate assembling temperature probe in the body of flowmeter so that the shaft design of ultrasonic flowmeter is simpler, it is also possible to avoid
The tubular body stream field of temperature probe insertion ultrasonic flowmeter is impacted, and certainty of measurement is high, simple structure.
The ultrasonic flowmeter, including the ultrasonic flow sensor, possess the ultrasonic flow sensor
Technique effect, certainty of measurement is high, simple structure.
Brief description of the drawings
Fig. 1 is the configuration schematic diagram of the ultrasonic flow sensor described in the utility model embodiment；
Fig. 2 is the cross-sectional view of the ultrasonic flow sensor described in the utility model embodiment.
Description of reference numerals：
10th, shell body, 12, base housing, 122, installing plate, 14, base housing, 142, boss, 20, inverting element, 30,
Temperature probe, 32, head, 34, lead-out wire, 40, connecting line, 50, pcb board, 60, heat conducting element, 70, embedding glue-line, 80, buffering
Pad, the 90, first double faced adhesive tape, the 100, second double faced adhesive tape, 110, rs 232 serial interface signal line, 120, from probe signal line, 1, from probe
Flow sensor.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation
Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain
The utility model, is not used to limit the utility model.
As shown in Figure 1 and Figure 2, a kind of ultrasonic flow sensor, including shell body 10 and it is arranged on the shell body 10
Interior inverting element 20, temperature probe 30, connecting line 40 and pcb board 50, the connecting line 40 connect the He of the inverting element 20
The pcb board 50, the lead-out wire 34 of the temperature probe 30 is connected with the pcb board 50, the head 32 of the temperature probe 30
Outside is provided with heat conducting element 60.In the present embodiment, the inverting element 20 is transducing crystal.The temperature probe 30 is to survey
The temperature sensor of amount temperature, preferably NTC thermistor.The temperature measurement accuracy of NTC thermistor can reach more than 1 DEG C, temperature
Measurement range is wider, can be -40 DEG C~300 DEG C, and cheap, can effectively improve the ultrasonic flow sensor of this implementation
Certainty of measurement, improve the operating temperature upper limit, and reduce production cost.Flow calculation process electricity is integrated with the pcb board 50
Road system, the ultrasonic signal that will can be captured is converted to digital fluid signal by calculation process, while with according to thermometric
The temperature information that probe 30 is measured is compensated to the fluid flow under different temperatures.
The ultrasonic flow sensor, by setting temperature probe 30 in shell body 10, can enter to fluid temperature (F.T.)
Row measurement, inverting element 20 is connected by connecting line 40 with pcb board 50, and temperature probe 30 lead-out wire 34 also with pcb board 50
Connection, when measuring, the ultrasonic signal union treatment that pcb board 50 can catch inverting element 20 is converted to digital stream
Amount signal, while the fluid temperature information with being measured according to temperature probe 30 is compensated to the fluid flow under different temperatures, surveys
Accuracy of measurement is high, and heat-conducting unit is set by the outside of temperature probe 30, can quickly by ultrasonic flowmeter body
Fluid temperature (F.T.) conducts the sensitivity that temperature probe 30 is improved to temperature probe 30, further improves certainty of measurement.The ultrasonic wave
Flow sensor, can avoid the perforate assembling temperature probe in the body of ultrasonic flowmeter so that ultrasonic flowmeter
Shaft design is simpler, it is also possible to which the tubular body stream field for avoiding temperature probe from inserting ultrasonic flowmeter is impacted,
Certainty of measurement is high, simple structure.
Further, the ultrasonic flow sensor also includes embedding glue-line 70, and the shell body 10 includes base shell
Body 12 and the base housing 14 being tightly connected with the base housing 12, the base housing 12 is near the base housing 14
First end be provided with the first installation cavity, the inverting element 20 is arranged on described first and installs cavity, the base housing
14 are provided with the second installation cavity away from the first end of the base housing 12, and the pcb board 50 is arranged on second installation cavity
In body, the embedding glue-line 70 is arranged on the first end of the base housing 14, and the pcb board 50 is sealed in into the base shell
In body 14.Using said structure, inverting element 20 is arranged in base housing 12 and realizes sealing, PCB by base housing 14
Plate 50 is arranged in base housing 14 and realizes sealing by embedding glue-line 70, by by 10 points of shell body be base housing 12 and
Base housing 14, base housing 14 can as main pressure-bearing shell, and base housing 12 can then be configured to it is relatively thin, and then
The sensitivity of inverting element 20 is improved, the accuracy of detection of the ultrasonic flow sensor of the present embodiment is improved.In the present embodiment, institute
Stating base housing 12 can be manufactured using stainless steel making, the base housing 14 using plastic base.
Further, the head 32 of the temperature probe 30 is located at the side of the inverting element 20 and the base housing 12
Between wall, the base housing 14 is provided with cable-through hole, and the lead-out wire 34 of the temperature probe 30 passes through the cable-through hole and institute
Pcb board 50 is stated to connect.Using said structure, between temperature probe 30 can be arranged between inverting element 20 and base housing 12
In gap, the overall volume of the ultrasonic flow sensor of the present embodiment, and install convenient will not be increased.It is described in the present embodiment
Heat conducting element 60 is heat-conducting silicone grease, and the heat conducting element 60 coats the head 32 of the temperature probe 30, and fills up the thermometric
The head 32 of probe 30 and the gap between the inverting element 20, the side wall of the base housing 12.Using said structure, heat conduction
Element 60 can play preferable conductive force, and also can play fixation to temperature probe 30, it is ensured that temperature probe 30 can
It is arranged in the base housing 12 by ground.
In the present embodiment, the second end of the base housing 14 is provided with for stretching into the boss in the first installation cavity body
142, the boss 142 be provided with matched with the inverting element 20 the 3rd installation cavity and with the temperature probe 30
The avoidance breach of the matching of head 32, the inverting element 20 is located at the described 3rd and installs cavity, and the of the base housing 12
One end margin is provided with the installing plate 122 matched with the first end of the base housing 14, the first end of the base housing 12 with
Second end of the base housing 14 is tightly connected.Using said structure, the second end of base housing 14 can form cascaded surface,
The first end of the base housing 12 can form the cascaded surface matched with the second end of base housing 14, base housing 14 and bottom
The install convenient of seat shell body 12, is tightly connected that contact area is larger, and sealing property is more reliable；And boss 142 can be tipped upside down on
On base housing 12, the 3rd installation cavity can also be positioned and fixed to inverting element 20.It is described in the present embodiment
Base housing 12 is sealed by glue with the base housing 14 and is connected, good seal performance, and connection is reliable.
In the present embodiment, the ultrasonic flow sensor also includes cushion pad 80, and the cushion pad 80 is arranged on described
In 3rd installation cavity, and the cushion pad 80 is located between the inverting element 20 and the base housing 14.Using above-mentioned
Structure, cushion pad 80 can play cushioning effect, effectively protection inverting element 20.The ultrasonic flow sensor also includes the
One double faced adhesive tape 90 a, side of first double faced adhesive tape 90 is pasted onto on the described first bottom surface for installing cavity, described
Inverting element 20 is pasted onto on another side of first double faced adhesive tape 90.Inverting element 20 passes through the first double faced adhesive tape 90
It is fixed on base housing 12, it is fixed reliable, it is easy for installation.The ultrasonic flow sensor also includes the second double faced adhesive tape
100, a side of second double faced adhesive tape 100 is pasted onto on the described second bottom surface for installing cavity, and the pcb board 50 glues
It is attached on another side of second double faced adhesive tape 100.Using said structure, the second double faced adhesive tape 100 can be described
Pcb board 50 is pre-fixed on base housing 14, it is ensured that the reliable installation of pcb board 50, and is also allowed for the first of base housing 14
End sets the embedding glue-line 70.
In the present embodiment, the ultrasonic flow sensor also includes rs 232 serial interface signal line 110 and from probe signal line 120,
One end of the rs 232 serial interface signal line 110 is connected with the pcb board 50, and the other end of the rs 232 serial interface signal line 110 is used to connect aobvious
Show device, described one end from probe signal line 120 is connected with the pcb board 50, the other end from probe signal line 120 is used
In connection from probe flow sensor 1.By setting rs 232 serial interface signal line 110, the data transfer that will can be detected to display
On shown；By setting from probe signal line 120, for being connected with from probe flow sensor 1, and then, the present embodiment
Ultrasonic flow sensor with from probe flow sensor 1 be used together with play a part of transmitting receive.
Ultrasonic flow sensor described in the present embodiment, by setting temperature probe 30 inside shell body 10, and sets
The lead-out wire 34 for putting temperature probe 30 is connected with pcb board 50, and feedback can be measured to fluid temperature (F.T.) to realize temperature-compensating,
Effectively increase the certainty of measurement under hot conditions, it is to avoid the perforate assembling temperature probe in the body of ultrasonic flowmeter,
Make the shaft design of ultrasonic flowmeter simpler, and avoid the tubular body pair that temperature probe inserts ultrasonic flowmeter
The influence that flow field is caused, improves the operating temperature upper limit of ultrasonic flowmeter, and precision is higher, and reliability is more excellent, product
Applicability it is wide.
A kind of ultrasonic flowmeter, including sensed from probe flow sensor 1, display and described ultrasonic flow
Device, described to be connected from probe signal line 120 with the ultrasonic flow sensor from probe flow sensor 1, the display
Device is connected with the rs 232 serial interface signal line 110 of the ultrasonic flow sensor.The ultrasonic flowmeter, including the supersonic flow
Quantity sensor, the technique effect for possessing the ultrasonic flow sensor, certainty of measurement is high, simple structure, applied widely,
Reliability is high, can be used in ultrasonic water meter, ultrasonic wave hotlist.In the present embodiment, the structure from probe flow sensor 1
Structure with the ultrasonic flow sensor is essentially identical, described to be not provided with pcb board 50 from probe flow sensor 1,
The inverting element 20 from probe flow sensor 1 is by from probe signal line 120 and the ultrasonic flow sensor
Pcb board 50 is connected, and then controls the ultrasonic flow sensor of the present embodiment and from probe flow sensor by pcb board 50,
Realize the measurement of flow.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of ultrasonic flow sensor, it is characterised in that including shell body and the transducing being arranged in the shell body
Element, temperature probe, connecting line and pcb board, the connecting line connect the inverting element and the pcb board, and the thermometric is visited
The lead-out wire of head is connected with the pcb board, and the head outside of the temperature probe is provided with heat conducting element.
2. ultrasonic flow sensor according to claim 1, it is characterised in that also including embedding glue-line, the shell
Body includes base housing and the base housing being tightly connected with the base housing, and the base housing is near the base shell
The first end of body is provided with the first installation cavity, and the inverting element is arranged in the first installation cavity, the base housing
First end away from the base housing is provided with the second installation cavity, and the pcb board is arranged in the second installation cavity, institute
The first end that embedding glue-line is arranged on the base housing is stated, the pcb board is sealed in the base housing.
3. ultrasonic flow sensor according to claim 2, it is characterised in that the head of the temperature probe is located at institute
State between inverting element and the side wall of the base housing, the base housing is provided with cable-through hole, the temperature probe draws
Outlet is connected through the cable-through hole with the pcb board.
4. ultrasonic flow sensor according to claim 3, it is characterised in that the second end of the base housing is provided with
For stretching into the boss in the first installation cavity body, the boss is provided with the 3rd installation cavity matched with the inverting element
Body and the avoidance breach matched with the head of the temperature probe, the inverting element are located in the described 3rd installation cavity,
First end margin of the base housing is provided with the installing plate matched with the first end of the base housing, the base housing
First end is tightly connected with the second end of the base housing.
5. ultrasonic flow sensor according to claim 4, it is characterised in that also including cushion pad, the cushion pad
It is arranged in the 3rd installation cavity, and the cushion pad is located between the inverting element and the base housing.
6. the ultrasonic flow sensor according to claim any one of 2-5, it is characterised in that also including the first double faced adhesive tape
Patch a, side of first double faced adhesive tape is pasted onto on the described first bottom surface for installing cavity, and the inverting element is pasted
On another side of first double faced adhesive tape.
7. the ultrasonic flow sensor according to claim any one of 2-5, it is characterised in that also including the second double faced adhesive tape
Patch a, side of second double faced adhesive tape is pasted onto on the described second bottom surface for installing cavity, and the pcb board is pasted onto institute
State on another side of the second double faced adhesive tape.
8. the ultrasonic flow sensor according to claim any one of 2-5, it is characterised in that also including rs 232 serial interface signal line
It is connected with the pcb board with from one end of probe signal line, the rs 232 serial interface signal line, the other end of the rs 232 serial interface signal line is used for
Connection display, described one end from probe signal line is connected with the pcb board, and the other end from probe signal line is used for
Connect from probe flow sensor.
9. the ultrasonic flow sensor according to claim any one of 1-5, it is characterised in that the temperature probe is
NTC thermistor.
10. a kind of ultrasonic flowmeter, it is characterised in that including from probe flow sensor, display and claim 1-9
Ultrasonic flow sensor described in any one, it is described from probe flow sensor and the ultrasonic flow sensor from spy
Head holding wire connection, the display is connected with the rs 232 serial interface signal line of the ultrasonic flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621182515.9U CN206192417U (en) | 2016-11-02 | 2016-11-02 | Ultrasonic flow sensor and ultrasonic flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621182515.9U CN206192417U (en) | 2016-11-02 | 2016-11-02 | Ultrasonic flow sensor and ultrasonic flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206192417U true CN206192417U (en) | 2017-05-24 |
Family
ID=58733591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621182515.9U Active CN206192417U (en) | 2016-11-02 | 2016-11-02 | Ultrasonic flow sensor and ultrasonic flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206192417U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268000A (en) * | 2018-08-13 | 2019-01-25 | 中国石油集团工程技术研究院有限公司 | Measurement-while-drilling system ultrasonic transducer mounting structure and method |
| CN113390484A (en) * | 2021-05-31 | 2021-09-14 | 广东奥迪威传感科技股份有限公司 | Ultrasonic flow transducer and electrical property switching mechanism |
-
2016
- 2016-11-02 CN CN201621182515.9U patent/CN206192417U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268000A (en) * | 2018-08-13 | 2019-01-25 | 中国石油集团工程技术研究院有限公司 | Measurement-while-drilling system ultrasonic transducer mounting structure and method |
| CN113390484A (en) * | 2021-05-31 | 2021-09-14 | 广东奥迪威传感科技股份有限公司 | Ultrasonic flow transducer and electrical property switching mechanism |
| CN113390484B (en) * | 2021-05-31 | 2024-05-17 | 广东奥迪威传感科技股份有限公司 | Ultrasonic flow transducer and electrical switching mechanism |
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