CN205485424U - Single -point pipeline formula switch - Google Patents
Single -point pipeline formula switch Download PDFInfo
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- CN205485424U CN205485424U CN201521010121.0U CN201521010121U CN205485424U CN 205485424 U CN205485424 U CN 205485424U CN 201521010121 U CN201521010121 U CN 201521010121U CN 205485424 U CN205485424 U CN 205485424U
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Abstract
The utility model discloses a single -point pipeline formula switch, including the host computer and the ultrasonic transducer that are connected, the host computer includes controller, the little signal reception circuit of disresonance formula ultrasonic emission circuit, display device, the one end of disresonance formula ultrasonic emission circuit is connected with ultrasonic transducer, and is used for to ultrasonic transducer transmission signal, and the other end of disresonance formula ultrasonic emission circuit is connected with the controller, and the one end of little signal reception circuit is connected with ultrasonic transducer, just is used for receiving ultrasonic transducer outgoing letter number, and the other end of little signal reception circuit is connected with the controller, still is provided with infrared interface on the controller, is this controller ARM cortex the STM32F103 singlechip of M3 core. This single -point pipeline formula switch simple installation is quick.
Description
Technical field
This utility model belongs to switching technique field, is specifically related to single-point duct type switch.
Background technology
The first-class conventional liquidometer of, liquid-transport pipe-line on-the-spot at industrial pipeline, switch cannot alarm field, apply traditional switch alarm to there is bigger difficulty, it is impossible to meet the early warning demand of particular job environment.For the liquid level of pipeline under early warning complex working condition, the development significance of single-point duct type switch is outstanding.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, it is provided that a kind of simple installation quick single-point duct type switch.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is, single-point duct type switchs, and including the main frame being connected and ultrasound probe, main frame includes that controller, disresonance type ultrasonic emitting circuit small-signal receive circuit, display device；
One end of disresonance type ultrasonic emitting circuit is connected with ultrasound probe, and for launching signal to ultrasound probe, the other end of disresonance type ultrasonic emitting circuit is connected with controller, small-signal receives one end of circuit and is connected with ultrasound probe, and be used for receiving ultrasound probe reflected signal, small-signal receives the other end of circuit and is connected with controller, and controller is additionally provided with infrared interface；This controller is the STM32F103 single-chip microcomputer of ARM Cortex-M3 core.
Disresonance type ultrasonic emitting circuit includes the first audion, the base stage of the first audion is connected with controller by the 4th resistance, the colelctor electrode of the first audion is connected by one end of node a and the 6th resistance, the other end of the 6th resistance is connected with power supply by node b, the emitter stage of the first audion is connected by the colelctor electrode of node d and IGBT pipe, the base stage of IGBT pipe is connected with node a, the emitter stage of IGBT pipe is connected by one end of node c and the first resistance, and the other end of the first resistance is connected with power supply by node b；One end of node c and the first electric capacity is connected, the other end of the first electric capacity is connected by the input of node e and the first Schottky diode, the outfan of the first Schottky diode is connected with ultrasound probe by node f, node f is also connected with one end of adjustable resistance, the other end of adjustable resistance and ultrasound probe are connected to node d, node e also input with the second Schottky diode is connected, and the outfan of the second Schottky diode is also connected with node d.The ground single-point of last node d and system connects.
Further, this small-signal reception circuit includes being sequentially connected the prime impedance matching amplifying unit connect, parallel RLC filter unit, intergrade fixed gain amplifying circuit, second level RLC filter circuit, adjustable gain amplifying circuit.
Further, this ultrasound probe includes level and the patch panel being disposed in metal-back and piezoelectric patches, piezoelectric patches is arranged at the bottom in metal-back, it is connected by conducting resinl between piezoelectric patches with metal-back, vertically connecting between patch panel and piezoelectric patches has conductive pole, patch panel to be also connected with signal cable；Described patch panel is provided with back-up ring with the contact position of metal-back, and described back-up ring is symmetrically distributed in the corresponding end of patch panel in pairs, and piezoelectric patches top is provided with for absorbing and the sound-absorbing material of clutter reduction interference.
This utility model single-point duct type switch has the advantage that 1. have employed the ultrasound probe of single-point as measuring unit, decreases mounting assembly.2. have employed disresonance type radiating circuit, reached transmitting resolution and fed back adaptation adjustment, emissive porwer feedback adaptation adjustment, improve the signal resolution in the case of list electricity and the pure property of signal so that the measurement scheme of single-point becomes feasible.3. small-signal receives circuit and have employed the basic framework of impedance matching+filtering+amplification, it is achieved that pure signal amplifying return circuit.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model single-point duct type switch；
Fig. 2 is the circuit diagram of disresonance type ultrasonic emitting circuit in this utility model single-point duct type switch；
Fig. 3 is the circuit diagram that this utility model single-point duct type switchs medium and small signal receiving circuit；
A. it is the partial circuit diagram of this utility model single-point duct type medium and small signal receiving circuit of switch；
B. it is another part circuit diagram of this utility model single-point duct type medium and small signal receiving circuit of switch；
Fig. 4 is the circuit diagram of ultrasound probe in this utility model single-point duct type switch；
Fig. 5 is that time domain plethysmographic signal launched by single-point duct type switch.
Wherein 1. main frame, 1-1. controller, 1-2. disresonance type ultrasonic emitting circuit, 1-3. display device, 1-4. small-signal receives circuit, 1-41. prime impedance matching amplifying unit, 1-42. parallel RLC filter unit, 1-43. intergrade fixed gain amplifying circuit, 1-44. second level RLC filter circuit, 1-45. adjustable gain amplifying circuit；2. ultrasound probe, 2-1. signal cable, 2-2. metal-back, 2-3. patch panel, 2-4. sound-absorbing material, 2-5. piezoelectric patches, 2-6. conducting resinl, 2-7. conductive pole, 2-8. back-up ring.
Detailed description of the invention
As it is shown in figure 1, this utility model single-point duct type switch, single-point duct type switchs, and including the main frame 1 being connected and ultrasound probe 2, main frame 1 includes that controller 1-1, disresonance type ultrasonic emitting circuit 1-2, small-signal receive circuit 1-4 and display device 1-3.
One end of disresonance type ultrasonic emitting circuit 1-2 is connected with ultrasound probe 2, and for launching signal to ultrasound probe 2, the other end of disresonance type ultrasonic emitting circuit 1-2 is connected with controller 1-1, small-signal receives one end of circuit 1-4 and is connected with ultrasound probe 2, and for receiving the signal that ultrasound probe 2 sends, small-signal receives the other end of circuit 1-4 and is connected with controller 1-1, and controller 1-1 is additionally provided with infrared interface.
As shown in Figure 2, disresonance type ultrasonic emitting circuit 1-2 includes the first audion Q1, the base stage of the first audion Q1 is connected with controller 1-1 by the 4th resistance R4, the colelctor electrode of the first audion Q1 is connected by one end of node a and the 6th resistance R6, the other end of the 6th resistance R6 is connected with power supply by node b, the emitter stage of the first audion Q1 is connected by the colelctor electrode of node d and IGBT pipe Q2, the base stage of IGBT pipe Q2 is connected with node a, the emitter stage of IGBT pipe Q2 is connected by one end of node c and the first resistance R1, the other end of the first resistance R1 is connected with power supply by node b；One end of node c and the first electric capacity C1 is connected, the other end of the first electric capacity C1 is connected by the input of node e and the first Schottky diode D1, the outfan of the first Schottky diode D1 is connected with ultrasound probe 2 by node f, node f also one end with adjustable resistance R3 is connected, the other end of adjustable resistance R3 and ultrasound probe 2 are connected to node d, node e also input with the second Schottky diode D2 is connected, and the outfan of the second Schottky diode D2 is also connected with node d.Have employed disresonance type radiating circuit, reached transmitting resolution and fed back adaptation adjustment, emissive porwer feedback adaptation adjustment, improve the signal resolution in the case of list electricity and the pure property of signal so that the measurement scheme of single-point becomes feasible.
Include being sequentially connected the prime impedance matching amplifying unit 1-41 connect, parallel RLC filter unit 1-42, intergrade fixed gain amplifying circuit 1-43, second level RLC filter circuit 1-44, adjustable gain amplifying circuit 1-45 as it is shown on figure 3, small-signal receives circuit 1-4.Parallel RLC filter unit 1-42 is connected by capacitance C15 with intergrade fixed gain amplifying circuit 1-43.Prime impedance matching amplifying unit 1-41 is primarily to buffer the reflection wave signal energy that ultrasound probe 2 receives, second level RLC filter circuit 1-44 has filtered reception noise jamming, then via feedback resistive network adjustable gain amplifying circuit 1-45, the ADC mouth finally sending into single-chip microcomputer carries out analog digital conversion.
As shown in Figure 4, ultrasound probe 2 includes level and the patch panel 2-3 being disposed in metal-back 2-2 and piezoelectric patches 2-5.Piezoelectric patches 2-5 is arranged at the bottom in metal-back 2-2, is connected by conducting resinl 2-6 between piezoelectric patches 2-5 with metal-back 2-2, and vertically connecting between patch panel 2-3 and piezoelectric patches 2-5 has conductive pole 2-7, patch panel 2-3 to be also connected with signal cable 2-1；The contact position of patch panel 2-3 and metal-back 2-2 is provided with back-up ring 2-8, back-up ring 2-8 and is symmetrically distributed in the corresponding end of patch panel 2-3 in pairs, and piezoelectric patches 2-5 top is provided with for absorbing and the sound-absorbing material 2-4 of clutter reduction interference.
This utility model single-point duct type switchs, main frame 1 and ultrasound probe 2 with the use of, the acoustic signals that main frame 1 produces transmits to ultrasound probe 2 via signal cable 2-1, ultrasound probe 2 converts energy into sound wave, and the surface back reflection being transmitted into fluid to be measured is returned, and accepts via ultrasound probe 2, and it is transmitted back to liquidometer main frame 1 by signal cable 2-1, after main frame 1 signal processing, calculate current level, carry out showing or teletransmission.Wherein 12V direct current is charged to 12V by the first resistance R1, capacitance C1, IGBT is driven by Q1 as the pulse signal produced via single-chip microcomputer during speed-sensitive switch, when single-chip microcomputer low level, IGBT is in by state, and the first electric capacity C1 is charged to 12V；During single-chip microcomputer high level, IGBT pipe Q2 is in the conduction state, and the first electric capacity C1 is via I IGBT pipe Q2, the electric discharge of adjustable resistance R3 adjustable resistance, the excitation high-voltage pulse that the generation persistent period is the shortest on ultrasound probe 2.Wherein the change in resistance of adjustable resistance R3 can regulate the damping state of circuit, damps little when resistance is big, and emissive porwer is big, and the resolution of excitation is low；Resistance hour damping is big, and emissive porwer is little, and resolution improves.Fed back by routine change adjustable resistance R3 and signal, the resolution of transmitting can be adjusted dynamically；By the ON time of IGBT pipe Q2, emissive porwer and frequency can be regulated.Transmitted waveform, as it is shown in figure 5, show to use disresonance type emission mode, can motivate high pressure supersonic oscillations signal.
Claims (3)
1. single-point duct type switch, it is characterized in that, including the main frame (1) being connected and ultrasound probe (2), described main frame (1) includes that controller (1-1), disresonance type ultrasonic emitting circuit (1-2), small-signal receive circuit (1-4) and display device (1-3)；
One end of described disresonance type ultrasonic emitting circuit (1-2) is connected with ultrasound probe (2), and for launching signal to ultrasound probe (2), the other end of described disresonance type ultrasonic emitting circuit (1-2) is connected with controller (1-1), described small-signal receives one end of circuit (1-4) and is connected with ultrasound probe (2), and be used for receiving the signal that ultrasound probe (2) sends, described small-signal receives the other end of circuit (1-4) and is connected with controller (1-1), it is additionally provided with infrared interface on described controller (1-1)；
Described disresonance type ultrasonic emitting circuit (1-2) includes the first audion (Q1), the base stage of described first audion (Q1) is connected with controller (1-1) by the 4th resistance (R4), the colelctor electrode of described first audion (Q1) is connected by one end of node a and the 6th resistance (R6), the other end of described 6th resistance (R6) is connected with power supply by node b, the emitter stage of described first audion (Q1) is connected by the colelctor electrode of node d with IGBT pipe (Q2), the base stage of described IGBT pipe (Q2) is connected with node a, the emitter stage of described IGBT pipe (Q2) is connected by one end of node c and the first resistance (R1), the other end of described first resistance (R1) is connected with power supply by node b；One end of described node c and the first electric capacity (C1) is connected, the other end of described first electric capacity (C1) is connected by the input of node e and the first Schottky diode (D1), the outfan of described first Schottky diode (D1) is connected with ultrasound probe (2) by node f, described node f also one end with adjustable resistance (R3) is connected, the other end of described adjustable resistance (R3) and ultrasound probe (2) are connected to node d, described node e also input with the second Schottky diode (D2) is connected, the outfan of described second Schottky diode (D2) is also connected with node d.
Single-point duct type the most according to claim 1 switchs, it is characterized in that, described small-signal receive circuit (1-4) include being sequentially connected connect prime impedance matching amplifying unit (1-41), parallel RLC filter unit (1-42), intergrade fixed gain amplifying circuit (1-43), second level RLC filter circuit (1-44), adjustable gain amplifying circuit (1-45).
Single-point duct type the most according to claim 2 switchs, it is characterized in that, described ultrasound probe (2) includes level and the patch panel (2-3) being disposed in metal-back (2-2) and piezoelectric patches (2-5), described piezoelectric patches (2-5) is arranged at the bottom in metal-back (2-2), it is connected by conducting resinl (2-6) between described piezoelectric patches (2-5) with metal-back (2-2), vertically connect between described patch panel (2-3) and piezoelectric patches (2-5) and have conductive pole (2-7), described patch panel (2-3) is also connected with signal cable (2-1)；Described patch panel (2-3) is provided with back-up ring (2-8) with the contact position of metal-back (2-2), described back-up ring (2-8) is symmetrically distributed in the corresponding end of patch panel (2-3) in pairs, and described piezoelectric patches (2-5) top is provided with for absorbing and the sound-absorbing material (2-4) of clutter reduction interference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521010121.0U CN205485424U (en) | 2015-12-08 | 2015-12-08 | Single -point pipeline formula switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521010121.0U CN205485424U (en) | 2015-12-08 | 2015-12-08 | Single -point pipeline formula switch |
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| CN205485424U true CN205485424U (en) | 2016-08-17 |
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| CN201521010121.0U Active CN205485424U (en) | 2015-12-08 | 2015-12-08 | Single -point pipeline formula switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105373048A (en) * | 2015-12-08 | 2016-03-02 | 陕西声科电子科技有限公司 | Single-point pipeline type switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105373048A (en) * | 2015-12-08 | 2016-03-02 | 陕西声科电子科技有限公司 | Single-point pipeline type switch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Single point pipeline type switch Effective date of registration: 20230724 Granted publication date: 20160817 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: SHAANXI SK ELECTRONIC TECHNOLOGY CO. Registration number: Y2023610000617 |