CN203595540U - Control circuit for controlling receiving and transmitting state of receiving and transmitting integrated ultrasonic sensors - Google Patents
Control circuit for controlling receiving and transmitting state of receiving and transmitting integrated ultrasonic sensors Download PDFInfo
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- CN203595540U CN203595540U CN201320814863.3U CN201320814863U CN203595540U CN 203595540 U CN203595540 U CN 203595540U CN 201320814863 U CN201320814863 U CN 201320814863U CN 203595540 U CN203595540 U CN 203595540U
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- gauge tap
- inductor
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- way gauge
- ultrasonic sensor
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Abstract
The utility model relates to a control circuit for controlling the receiving and transmitting state of receiving and transmitting integrated ultrasonic sensors. The control circuit comprises an A circuit and a B circuit which are of the same structure, wherein the A circuit is used for controlling the ultrasonic sensor A, and the B circuit is used for controlling the ultrasonic sensor B. One end of a first inductor in the A circuit is connected with the positive electrode of the ultrasonic sensor A, and the other end of the first inductor in the A circuit is connected with a first two-way control switch. One branch of the first two-way control switch is connected with a second two-way control switch, and the other branch of the first two-way control switch is connected with a first driving power supply. One branch of the second two-way control switch is connected with a first ideal power supply. One end of a second inductor is connected with the negative electrode of the ultrasonic sensor A, and the other end of the second inductor is connected with a third two-way control switch. One branch of the third two-way control switch is connected with a second driving power supply, and the other branch of the third two-way control switch is connected with a second ideal power supply. The other branch of a fifth two-way control switch in the B circuit is connected with the other branch of the second two-way control switch. The control circuit can make the pair of ultrasonic sensors accurately receive and transmit ultrasonic waves and shield interference as much as possible.
Description
Technical field
The utility model relates to gas instrument technical field, is specifically related to a kind of flow-measuring method of ultrasonic flow meter.
Background technology
In prior art, conventional domestic gas table is mainly membrane type gas meter at present, and its measuring accuracy is subject to the impact of temperature and pressure very large.Along with scientific and technical development, ultrasonic flow meter arises at the historic moment, and it is to adopt novel measuring technique, compared with traditional gas meter, have and do not contact measured medium, precision is high, good stability, and wide range compares feature, simple structure, mechanicalness moving part are few, the advantage such as volume is little, lightweight.The technology that ultrasonic flow meter flow measurement adopts is mainly acoustic velocity measutement technology, ultimate principle is, in the upstream and downstream of gas flow, at least one pair of ultrasonic sensor is installed, then utilize this paired ultrasonic sensor transmitting-receiving ultrasound wave, in fluid, propagate the flow rate information of time institute's carrying object by measuring ultrasound wave and measure fluid flow.
Ultrasonic sensor is the sensor that utilizes hyperacoustic characteristic to develop.It mainly comprises by piezoelectric chip, and piezoelectric chip vibrates under the excitation of voltage, has that frequency is high, wavelength is short, diffraction phenomenon is little thereby produce, particularly good directionality, can become ray and the ultrasound wave of direction propagation.The ultrasonic sensor using at present divides two classes, and a class is Single-Input Single-Output type, and ultrasound wave transmits and receives separately, and a probe is for ultrasound wave transmitting, and another probe receives for ultrasound wave, sensors with auxiliary electrode were complex structure, and cost is higher; Another kind of is transceiver type, use a probe to transmit and receive ultrasound wave, use at present the ultrasonic sensor on ultrasonic flow meter mostly to be transceiver type, because this ultrasonic sensor has been launched the rear interference that easily causes to received signal at ultrasound wave, affect greatly the detection distance of sensors with auxiliary electrode were, thereby reduced the precision of ultrasonic flow meter to flow monitoring.
Utility model content
For prior art above shortcomings, the purpose of this utility model is: provide a kind of ultrasonic sensor of controlling to receive and dispatch hyperacoustic control circuit, by controlling the reiving/transmitting state of ultrasonic sensor, reach as much as possible the object of punctual transmitting-receiving ultrasound wave, shielding interference.
For achieving the above object, the utility model adopts following technical scheme: the control circuit of controlling transceiver type ultrasonic sensor reiving/transmitting state, comprise inductor I, inductor II, inductor III 1 and inductor IV, one end of described inductor I is for connecting the positive pole of ultrasonic sensor A, the other end of inductor I connects two-way gauge tap I, a branch road of described two-way gauge tap I connects two-way gauge tap II, another branch road of two-way gauge tap I connects driving power I, and a branch road of two-way gauge tap II connects ideal source I;
One end of described inductor II is for connecting the negative pole of ultrasonic sensor A, and the other end of inductor II connects two-way gauge tap III, and a branch road of described two-way gauge tap III connects driving power II, and another branch road connects ideal source II;
One end of described inductor III is for connecting the positive pole of ultrasonic sensor B, the other end of inductor III connects two-way gauge tap IV, a branch road of described two-way gauge tap IV connects two-way gauge tap V, another branch road of two-way gauge tap IV connects driving power III, and a branch road of described two-way gauge tap V connects ideal source III;
Another branch road of described two-way gauge tap V and another branch road of two-way gauge tap II are connected to form output branch road by resistance, also comprise a resistance, and one end of described resistance is connected on output branch road;
One end of described inductor IV is for connecting the negative pole of ultrasonic sensor B, the other end of inductor IV connects two-way gauge tap VI, a branch road of described two-way gauge tap VI connects driving power IV, and another branch road of two-way gauge tap VI connects ideal source IV.
As optimization, described inductor I, inductor II, the capacity of inductor III and inductor IV is 10uH ~ 40mH.Described ideal source I, ideal source II, ideal source III and ideal source IV 34 are 0 ~ 5V.Described driving power I, driving power II, driving power III and be-30 ~ 30V of driving power IV.
Compared to existing technology, the utlity model has following beneficial effect:
The control circuit of the control transceiver type ultrasonic sensor reiving/transmitting state that 1, the utility model provides has been realized the differential driving pattern of ultrasonic sensor type of drive, guarantees to drive reliable and stable when having reduced power consumption.
2, this control circuit is by controlling the reiving/transmitting state of ultrasonic sensor, make as far as possible a pair of ultrasonic sensor can receive and dispatch on time ultrasound wave, shielding interference, thereby ultrasonic sensor sensor miniaturization more, weight the gentliest can be down to 4.5g, easy for installation.
3, this sensor control circuit adopts differential driving mode, can under the power consumption compared with little and voltage, drive little and thin wafer to send stronger ultrasonic signal, what therefore sensor can do is very little, and weight the gentliest can be down to 4.5g and easy for installation, is applicable to the ultrasonic wave gas meter of family expenses.
4, this control circuit, by precisely controlling the reiving/transmitting state of ultrasonic sensor, can make a pair of ultrasonic sensor can receive and dispatch on time ultrasound wave, shielding interference, and reliability is high, high conformity.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of controlling the control circuit of transceiver type ultrasonic sensor reiving/transmitting state in embodiment.
In figure, 11 is inductor I, and 12 is inductor II, and 13 is inductor III, and 14 is inductor IV; 21 is two-way gauge tap I, and 22 is two-way gauge tap II, and 23 is two-way gauge tap III, and 24 is two-way gauge tap IV, and 25 is two-way gauge tap V, and 26 is two-way gauge tap VI; 31 is ideal source I, and 32 is ideal source II, and 33 is ideal source III, and 34 is ideal source IV; 41 is driving power I, and 42 is driving power II, and 43 is driving power III, and 44 is driving power IV; 5 is ultrasonic sensor A, and 6 is ultrasonic sensor B, resistance 7.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
embodiment:as shown in Figure 1, control the control circuit of transceiver type ultrasonic sensor reiving/transmitting state, comprise inductor I 11, inductor II 12, inductor III 13 and inductor IV 14, one end of inductor I 11 is for connecting the positive pole of ultrasonic sensor A, the other end of inductor I 11 connects two-way gauge tap I 21, a branch road of two-way gauge tap I 21 connects two-way gauge tap II 22, another branch road of two-way gauge tap I 21 connects driving power I 41, and a branch road of two-way gauge tap II 22 connects ideal source I 31;
One end of inductor II 12 is for connecting the negative pole of ultrasonic sensor A, and the other end of inductor II 12 connects two-way gauge tap III 23, and a branch road of described two-way gauge tap III 23 connects driving power II 42, and another branch road connects ideal source II 32;
One end of inductor III 13 is for connecting the positive pole of ultrasonic sensor B, the other end of inductor III 13 connects two-way gauge tap IV 24, a branch road of described two-way gauge tap IV 24 connects two-way gauge tap V 25, another branch road of two-way gauge tap IV 24 connects driving power III 43, and a branch road of described two-way gauge tap V 25 connects ideal source III 33;
Another branch road of two-way gauge tap V 25 and another branch road of two-way gauge tap II 22 are connected to form output branch road, also comprise a resistance 7, and one end of resistance 7 is connected on output branch road;
One end of inductor IV 14 is for connecting the negative pole of ultrasonic sensor B, the other end of inductor IV 14 connects two-way gauge tap VI 26, a branch road of described two-way gauge tap VI 26 connects driving power IV 44, and another branch road of two-way gauge tap VI 26 connects ideal source IV 34.
Wherein inductor I 11, inductor II 12, the capacity of inductor III 13 and inductor IV 14 is 10uH ~ 40mH, ideal source I 31, ideal source II 32, ideal source III 33 and ideal source IV 34 are 0 ~ 5V, driving power I 41, driving power II 42, driving power III 43 and be-30 ~ 30V of driving power IV 44.
Principle of work of the present utility model is: in the time that ultrasonic sensor A5 is used for launching ultrasound wave, two-way gauge tap I 21 is connected driving power I 41 place branch roads, two-way gauge tap III 23 is connected the branch road at driving power II 42 places, ultrasonic sensor A5 anode negative terminal all accesses driving, to give higher driving-energy, now two-way gauge tap II 22 is connected ideal source I 31 place branch roads; Ultrasonic sensor B6 is used for receiving ultrasonic sensor A5 transmitting ultrasound wave, two-way gauge tap IV 24 disconnects the branch road at driving power III 43 places, two-way gauge tap IV 24 is communicated with the branch road at the place of two-way gauge tap V 25, two-way gauge tap V 25 disconnects ideal source III 33 place branch roads, another branch road is communicated with, the ultrasound wave now receiving enters a resistance 7, and the resistance of resistance 7 is 0 ~ 10 Europe, and two-way gauge tap VI 26 is communicated with ideal source IV 34 place branch roads.
In the time that ultrasonic sensor B6 is used for launching ultrasound wave, two-way gauge tap IV 24 is connected driving power III 43 place branch roads, two-way gauge tap VI 26 is connected driving power IV 44 place branch roads, ultrasonic sensor B6 anode negative terminal all accesses driving, to give higher driving-energy, two-way gauge tap V 25 is connected ideal source III 33 place branch roads; Ultrasonic sensor A5 is used for receiving ultrasonic sensor B6 transmitting ultrasound wave, two-way gauge tap I 21 disconnects driving power I 41 place branch roads, two-way gauge tap I 21 is communicated with two-way gauge tap II 22 place branch roads, two-way gauge tap II 22 disconnects ideal source I 31 place branch roads, another branch road is connected, the ultrasound wave now receiving enters a resistance 7
Two-way gauge tap III 23 is communicated with ideal source II 32 place branch roads.
In the time that ultrasonic sensor A5 and ultrasonic sensor B6 do not work, two-way gauge tap I 21 is connected two-way gauge tap II 22 place branch roads, two-way gauge tap II 22 is connected ideal source I 31 place branch roads, two-way gauge tap III 23 is connected ideal source II 32 place branch roads, two-way gauge tap IV 24 is connected two-way gauge tap V 25 place branch roads, two-way gauge tap V 25 is connected ideal source III 33 place branch roads, and two-way gauge tap VI 26 is connected ideal source IV 34 place branch roads.
Finally it should be noted that, above embodiment is only in order to the technical solution of the utility model to be described but not restriction technologies scheme, although applicant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, the modification that those carry out the technical solution of the utility model or be equal to replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. control the control circuit of transceiver type ultrasonic sensor reiving/transmitting state, it is characterized in that, comprise inductor I (11), inductor II (12), inductor III (13) and inductor IV (14), one end of described inductor I (11) is for connecting the positive pole of ultrasonic sensor A, the other end of inductor I (11) connects two-way gauge tap I (21), a branch road of described two-way gauge tap I (21) connects two-way gauge tap II (22), another branch road of two-way gauge tap I (21) connects driving power I (41), a branch road of two-way gauge tap II (22) connects ideal source I (31),
One end of described inductor II (12) is for connecting the negative pole of ultrasonic sensor A, the other end of inductor II (12) connects two-way gauge tap III (23), a branch road of described two-way gauge tap III (23) connects driving power II (42), and another branch road connects ideal source II (32);
One end of described inductor III (13) is for connecting and the positive pole of ultrasonic sensor B, the other end of inductor III (13) connects two-way gauge tap IV (24), a branch road of described two-way gauge tap IV (24) connects two-way gauge tap V (25), another branch road of two-way gauge tap IV (24) connects driving power III (43), and a branch road of described two-way gauge tap V (25) connects ideal source III (33);
Another branch road of another branch road of described two-way gauge tap V (25) and two-way gauge tap II (22) is connected to form output branch road, also comprises a resistance (7), and one end of described resistance (7) is connected on output branch road;
One end of described inductor IV (14) is for connecting and the negative pole of ultrasonic sensor B, the other end of inductor IV (14) connects two-way gauge tap VI (26), a branch road of described two-way gauge tap VI (26) connects driving power IV (44), and another branch road of two-way gauge tap VI (26) connects ideal source IV (34).
2. the control circuit of control transceiver type ultrasonic sensor reiving/transmitting state as claimed in claim 1, it is characterized in that: described inductor I (11), inductor II (12), the capacity of inductor III (13) and inductor IV (14) is 10uH ~ 40mH.
3. the control circuit of control transceiver type ultrasonic sensor reiving/transmitting state as claimed in claim 1, is characterized in that: described ideal source I (31), and ideal source II (32), ideal source III (33) and ideal source IV (34) are 0 ~ 5V.
4. the control circuit of control transceiver type ultrasonic sensor reiving/transmitting state as claimed in claim 1, it is characterized in that: described driving power I (41), driving power II (42), driving power III (43) and be-30 ~ 30V of driving power IV (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320814863.3U CN203595540U (en) | 2013-12-12 | 2013-12-12 | Control circuit for controlling receiving and transmitting state of receiving and transmitting integrated ultrasonic sensors |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320814863.3U CN203595540U (en) | 2013-12-12 | 2013-12-12 | Control circuit for controlling receiving and transmitting state of receiving and transmitting integrated ultrasonic sensors |
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| CN203595540U true CN203595540U (en) | 2014-05-14 |
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| CN201320814863.3U Expired - Fee Related CN203595540U (en) | 2013-12-12 | 2013-12-12 | Control circuit for controlling receiving and transmitting state of receiving and transmitting integrated ultrasonic sensors |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792862A (en) * | 2015-03-16 | 2015-07-22 | 芜湖美的厨卫电器制造有限公司 | Electric water heater, and method and apparatus for monitoring quality of water in internal container of electric water heater |
| CN104848553A (en) * | 2015-05-25 | 2015-08-19 | 芜湖美的厨卫电器制造有限公司 | Water distribution controller and water distribution method and water heating device based on water distribution controller |
-
2013
- 2013-12-12 CN CN201320814863.3U patent/CN203595540U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792862A (en) * | 2015-03-16 | 2015-07-22 | 芜湖美的厨卫电器制造有限公司 | Electric water heater, and method and apparatus for monitoring quality of water in internal container of electric water heater |
| CN104848553A (en) * | 2015-05-25 | 2015-08-19 | 芜湖美的厨卫电器制造有限公司 | Water distribution controller and water distribution method and water heating device based on water distribution controller |
| CN104848553B (en) * | 2015-05-25 | 2018-05-01 | 芜湖美的厨卫电器制造有限公司 | Water distribution controller and the decreasing water distribution method and hot water apparatus based on it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20201212 |