CN110051938A - Impedance matching box, system and the ultrasonic transducer therapeutic equipment of ultrasonic transducer - Google Patents
Impedance matching box, system and the ultrasonic transducer therapeutic equipment of ultrasonic transducer Download PDFInfo
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- CN110051938A CN110051938A CN201810055363.3A CN201810055363A CN110051938A CN 110051938 A CN110051938 A CN 110051938A CN 201810055363 A CN201810055363 A CN 201810055363A CN 110051938 A CN110051938 A CN 110051938A
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- 239000007787 solid Substances 0.000 description 1
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- 238000002604 ultrasonography Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N7/00—Ultrasound therapy
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Abstract
The invention discloses a kind of impedance matching box of ultrasonic transducer, system and ultrasonic transducer therapeutic equipments.The impedance matching box of the ultrasonic transducer includes: controllable impedance and tunable capacitor；The first end of the controllable impedance is connected to first end point, and the second end of the controllable impedance is connected to the first end and second end point of the tunable capacitor；The first end of the tunable capacitor is connected to the second endpoint, and the second end of the tunable capacitor is connected to third endpoint and the 4th endpoint, and the first end point and the third endpoint form first port, and second endpoint and the 4th endpoint form second port.In the present invention, impedance matching box includes controllable impedance and tunable capacitor, so that the wide scope for realizing impedance matching in impedance matching is adjusted, and adjusting is quick and convenient, substantially increases the speed of impedance matching.
Description
Technical field
The present invention relates to impedance match technique field, in particular to a kind of impedance matching box of ultrasonic transducer, system and
Ultrasonic transducer therapeutic equipment.
Background technique
At present in applications of ultrasound field, common ultrasonic transducer when in use, due to itself impedance and driving electricity
The output impedance difference in source is bigger, therefore will lead to the reduction of ultrasonic transducer delivery efficiency, and fever increases and failure increases etc.
Situation.It, can be to super in order to improve ultrasonic transducer delivery efficiency as far as possible, reducing fever and reduce failure
Sonic transducer carries out impedance matching.Due to the property complicated and changeable of ultrasonic transducer self character, whenever needing to adjust impedance
Many problems can be encountered when matching, for example speed is slow, method is original, component size limits etc., it is serious to affect application effect.
In conclusion impedance matching box in the prior art, the adjustable range of impedance matching is smaller, and the speed of impedance matching
Degree is slow.
Summary of the invention
The present invention provides impedance matching box, system and the ultrasonic transducer therapeutic equipment of a kind of ultrasonic transducer, for real
The wide scope of existing impedance matching is adjusted, and improves the speed of impedance matching.
To achieve the above object, the present invention provides a kind of impedance matching boxs of ultrasonic transducer, comprising: controllable impedance and
Tunable capacitor；
The first end of the controllable impedance is connected to first end point, and the second end of the controllable impedance is connected to described adjustable
The first end and second end point of capacitor；
The first end of the tunable capacitor is connected to the second endpoint, and the second end of the tunable capacitor is connected to third endpoint
With the 4th endpoint, the first end point and the third endpoint form first port, second endpoint and the 4th endpoint
Form second port.
Optionally, the controllable impedance includes air core inductor, magnetic core, regulating mechanism and multi gear bit switch, the multi gear position
Each driving switch in switch is connected to the corresponding position on the air core inductor；
The regulating mechanism is used to adjust the magnetic core into the depth in the air core inductor.
Optionally, the tunable capacitor includes multiple fixed capacities being arranged in parallel；
The first end of each fixed capacity be connected to controllable impedance second end and second endpoint, each fixed capacity
Second end be provided with corresponding switch between the third endpoint and the 4th endpoint.
Optionally, the tunable capacitor further include: variable capacitance, the variable capacitance are in parallel with multiple fixed capacities
Setting；
The first end of the variable capacitance be connected to controllable impedance second end and second endpoint, the variable capacitance
Second end be connected to the third endpoint and the 4th endpoint.
Optionally, the multiple fixed capacities being arranged in parallel are arranged successively；Since third fixed capacity, each fixed electricity
The capacitance of appearance is the sum of the capacitance of preceding multiple fixed capacities.
Optionally, further includes: circuit board is provided with the multiple fixed capacities being arranged in parallel on the circuit board.
Optionally, further includes: the first knob and the first connection structure, first knob pass through first connection structure
It is connect with the multi gear bit switch.
Optionally, further includes: the first knob and the second connection structure, second knob pass through second connection structure
It is connect with the regulating mechanism.
To achieve the above object, the present invention provides a kind of impedance matching systems of ultrasonic transducer, comprising: ultrasonic transduction
The impedance matching box of device, driving power and above-mentioned ultrasonic transducer, the impedance that the driving power passes through the ultrasonic transducer
Adaptation is connect with the ultrasonic transducer；
The driving power is connected to the first port, and the ultrasonic transducer is connected to the second port；Alternatively,
The driving power is connected to the second port, and the ultrasonic transducer is connected to the first port.
To achieve the above object, the present invention provides a kind of ultrasonic transducer therapeutic equipments, including above-mentioned ultrasonic transducer
Impedance matching system.
The invention has the following advantages:
The technical solution of the impedance matching box of ultrasonic transducer provided by the invention, system and ultrasonic transducer therapeutic equipment
In, impedance matching box includes controllable impedance and tunable capacitor, to realize the wide scope tune of impedance matching in impedance matching
Section, and adjusting is quick and convenient, substantially increases the speed of impedance matching.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of the impedance matching box for ultrasonic transducer that the embodiment of the present invention one provides；
Fig. 2 is the structural schematic diagram of the impedance matching box of ultrasonic transducer in Fig. 1；
Fig. 3 is the front panel schematic diagram of cabinet in Fig. 2；
Fig. 4 is a kind of structural schematic diagram of the impedance matching system of ultrasonic transducer provided by Embodiment 2 of the present invention.
Specific embodiment
To make those skilled in the art more fully understand technical solution of the present invention, the present invention is mentioned with reference to the accompanying drawing
Impedance matching box, system and the ultrasonic transducer therapeutic equipment of the ultrasonic transducer of confession are described in detail.
Fig. 1 is a kind of circuit diagram of the impedance matching box for ultrasonic transducer that the embodiment of the present invention one provides, Fig. 2 Fig. 1
The structural schematic diagram of the impedance matching box of middle ultrasonic transducer, as depicted in figs. 1 and 2, the impedance matching box of the ultrasonic transducer
It include: controllable impedance 1 and tunable capacitor 2.The first end of controllable impedance 1 is connected to first end point a, the second end of controllable impedance 1
It is connected to the first end and second end point b of tunable capacitor 2.The first end of tunable capacitor 2 is connected to the second endpoint b, tunable capacitor 2
Second end be connected to third endpoint c and the 4th endpoint d, first end point a and third endpoint c form first port N1, second end
Point b and the 4th endpoint d forms second port N2.
In the present embodiment, impedance matching box uses inductance capacitance (LC) type circuit convenient to carry out, using LC type circuit
The advantages of for component number is few, failure rate is low and at low cost.In the present embodiment, the inductance in impedance matching box is controllable impedance
1, and capacitor is tunable capacitor 2, impedance matching box is adjustable impedance matching box, to realize impedance in impedance matching
Matched wide scope is adjusted.
As shown in Figure 1, in the present embodiment, it is preferable that third endpoint c and the 4th endpoint d ground connection.
As depicted in figs. 1 and 2, controllable impedance 1 includes air core inductor 11, magnetic core 12, regulating mechanism 13 and multi gear bit switch
14, each driving switch in multi gear bit switch 14 is connected to the corresponding position on air core inductor 11.Preferably, multi gear bit switch
14 be high-power multi gear bit switch.Regulating mechanism 13 is used to adjust the depth that magnetic core 12 enters in air core inductor 11.Specifically, it adjusts
Section mechanism 13 is movement mechanism, and regulating mechanism 13 drives the movement of magnetic core 12 to enter air core inductor 11 to adjust magnetic core 12 during exercise
In depth.Magnetic core 12 can be achieved to be finely adjusted inductance in the adjustment process to inductance.Further, the impedance
Orchestration further include: bracket 18 is equipped with magnetic core 12 on bracket 18, and bracket 18 is used for fixed magnetic core 12, and bracket 18 is set to adjusting
In mechanism 13, bracket 18 can drive magnetic core 12 to move when regulating mechanism 13 moves.
Multi gear bit switch 14 include multiple driving switch, multiple driving switch be respectively driving switch L0, L1,
L2,……,Ln.Coil on air core inductor 11 uses section wiring, and the coil of different location is connected to different driving switch
On, so that each driving switch can be connected to the different location on air core inductor 11.As shown in Fig. 2, the impedance matching box
It further include the first knob 15 and the first connection structure 21, the first knob 15 is connected by the first connection structure 21 with multi gear bit switch 14
It connects, rotatable first knob 15 of operator is so that multi gear bit switch 14 turns on different driving switch.It needs to illustrate
Be: the connection in Fig. 2 between multi gear bit switch 14 and air core inductor 11 is not drawn specifically, and specific connection type is referring to Figure 1.
Air core inductor 11 is hollow structure inside, therefore magnetic core 12 can enter air core inductor under the control of regulating mechanism 13
In 11.Air core inductor 11 is air core coil, it is preferable that air core inductor 11 can be used copper pipe and be made.According to required adjusting
Inductance, regulating mechanism 13 can drive magnetic core 12 to fully enter air core inductor 11, partially enter air core inductor 11 or all move back
Air core inductor 11 out.As shown in Fig. 2, the impedance matching box further includes the second knob 16 and the second connection structure 22, the second knob
16 are connect by the second connection structure 22 with regulating mechanism 13, and rotatable second knob 16 of operator makes regulating mechanism 13 along the
The movement of two connection structures 22 adjusts the depth that magnetic core 12 enters in air core inductor 11 to realize to drive magnetic core 12 to move.
During the inductance of practical adjustments controllable impedance 1, multi gear bit switch 14 is gone into required shelves first
On bit switch, the depth that magnetic core 12 enters in air core inductor 11, then rotating second knob are then adjusted by regulating mechanism 13 again
16 to be adjusted to required inductance for the inductance of controllable impedance 1 by regulating mechanism 13.It as depicted in figs. 1 and 2, will be more
Driving switch 14 is adjusted on driving switch L0 (minimum gear), and magnetic core 12 is entered air core inductor 11 by regulating mechanism 13
Depth adjustment be 0, i.e. the outside that is fully located at air core inductor 11 of magnetic core 12, the inductance of controllable impedance 1 is minimum value at this time；
Multi gear bit switch 14 is adjusted on driving switch Ln (maximum gear), and magnetic core 12 is entered by hollow electricity by regulating mechanism 13
The depth adjustment of sense 11 is maximum value, i.e. the inside that fully enters air core inductor 11 of magnetic core 12, at this time the inductance of controllable impedance 1
For maximum value.In the present embodiment, pass through the driving switch conversion of multi gear bit switch 14 and the depth in air core inductor 11 of magnetic core 12
Adjusting, to realize a wide range of adjusting of the inductance of controllable impedance 1.
As depicted in figs. 1 and 2, tunable capacitor 2 includes multiple fixed capacities being arranged in parallel.Preferably, fixed capacity is
High power capacity.Multiple fixed capacities be respectively fixed capacity C1, C2, C3, C4 ..., Cn.The first end of each fixed capacity
It is connected to the second end and the second endpoint b of controllable impedance 1, the second end and third endpoint c and the 4th endpoint d of each fixed capacity
Between be provided with corresponding switch.Preferably, it switchs as high power switch.Each fixed capacity both corresponds to a switch, then
Impedance matching box includes multiple switch, it is multiple switch be respectively k1, k2, k3, k4 ..., kn, wherein fixed capacity C1 with
Switch k1 is correspondingly arranged, and fixed capacity C2 is correspondingly arranged with switch k2, and so on, fixed capacity Cn is corresponding with switch kn to be set
It sets.Corresponding switch k1, fixed capacity C2 and third are then provided between fixed capacity C1 and third endpoint c and the 4th endpoint d
Corresponding switch k2 is provided between endpoint c and the 4th endpoint d, and so on, fixed capacity Cn and third endpoint c and the 4th end
Corresponding switch kn is provided between point d.When the switch is closed, the second end of corresponding fixed capacity and third endpoint c and the
It is connected between four endpoint d, it may be assumed that be connected in parallel between corresponding fixed capacity；When the switches are opened, the of corresponding fixed capacity
It is not connected between two ends and third endpoint c and the 4th endpoint d, it may be assumed that be not connected in parallel between corresponding fixed capacity.Such as Fig. 2 institute
Show, the impedance matching box further include: circuit board 19.Be provided on circuit board 19 the multiple fixed capacity C1, C2 being arranged in parallel,
C3, C4 ..., Cn, the circuit board 19 be capacitor board.
It according to the capacitance of required adjusting, will close the switch in whole or in part, by the corresponding fixed electricity of closure switch
The second end of appearance is connect with third endpoint c and the 4th endpoint d, such as switch k1, switch k2 and switch k3 is closed, rest switch
It remains off, so that fixed capacity C1, the second end of fixed capacity C2 and fixed capacity C3 and third endpoint c and the 4th end
Point d connection, it may be assumed that fixed capacity C1, fixed capacity C2 and fixed capacity C3 are connected in parallel, and the capacitance of tunable capacitor 2 is at this time
The sum of the fixed capacity C1 that is arranged in parallel, capacitance of fixed capacity C2 and fixed capacity C3.
In the present embodiment, the capacitance of each fixed capacity can need to be configured according to product design.Preferably, in parallel
The multiple fixed capacities being arranged are arranged successively；Since third fixed capacity, the capacitance of each fixed capacity is preceding multiple
The sum of capacitance of fixed capacity.For example, fixed capacity C1, C2, C3, C4 ..., Cn be arranged successively in order, third is solid
The capacitance for determining capacitor C3 is the sum of the capacitance of fixed capacity C1, C2, and the capacitance of the 4th fixed capacity C4 is fixed electricity
Hold the sum of the capacitance of C1, C2 and C3, and so on, the capacitance of n-th of fixed capacity Cn be fixed capacity C1, C2 ...,
Cn-1The sum of capacitance.Wherein, the capacitance of fixed capacity C2 can be same or different with the capacitance of fixed capacity C1.
The capacitance of fixed capacity is arranged using such mode, it can be achieved that continuously adjusting to the capacitance of tunable capacitor.
In the present embodiment, tunable capacitor 2 can also include: variable capacitance Cv, and variable capacitance Cv and multiple fixed capacities are simultaneously
Connection setting.The first end of variable capacitance Cv is connected to the second end and the second endpoint b of controllable impedance 1, and the second of variable capacitance Cv
End is connected to third endpoint c and the 4th endpoint d.As shown in Fig. 2, the impedance matching box further includes third knob 17, operator
Rotatable third knob 17 is to adjust the capacitance of variable capacitance Cv.Preferably, variable capacitance Cv is high power varying capacitor.
According to the capacitance of required adjusting, on the basis of closing section or all switches, further adjusting can power transformation
Hold the capacitance of Cv to adjust the capacitance of tunable capacitor 2, so that the accurate adjusting to the capacitance of tunable capacitor 2 is realized,
The capacitance of tunable capacitor 2 is set to reach required right value.
In the present embodiment, the minimum value of the capacitance of tunable capacitor 2 is 0, at this time can disconnect all switches, and will
The capacitance of variable capacitance Cv is adjusted to 0；The maximum value of the capacitance of tunable capacitor 2 is the maximum value of the capacitance of variable capacitance
The sum of with the capacitance of all fixed capacities, all switches can be closed at this time, and by the capacitance tune of variable capacitance Cv
Section is maximum value.In the present embodiment, tunable capacitor 2 can select the fixed electricity for needing to be connected in parallel according to the size of required capacitance
The number of appearance, and the capacitance of variable capacitance Cv is adjusted, realize a wide range of adjusting of the capacitance of tunable capacitor 2.
In the present embodiment, first port N1 is input port, and second port N2 is delivery outlet, so that impedance matching box rises
To the effect for promoting impedance.Alternatively, second port N2 is input port, first port N1 is delivery outlet, so that impedance matching
It is low-impedance that device plays the role of drop.
As shown in Fig. 2, first port N1 is L-type coaxial connector, second port N2 is N-type coaxial connector.
Fig. 3 is the front panel schematic diagram of cabinet in Fig. 2, as shown in Figures 2 and 3, the impedance matching box further include: cabinet
20, cabinet 20 is the shell of impedance matching box.Each structure in controllable impedance 1 and tunable capacitor 2 is respectively positioned on the interior of cabinet 20
Portion, first port N1 and second port N2 are located at the outside of cabinet 20.Wherein, front panel is located at the outside of cabinet 20, wherein the
Two-port netwerk N2 is located on front panel, and first port N1 is located at the side corresponding with front panel of cabinet 20.First knob 15, second
Knob 16, third knob 17 and switch k1, k2, k3, k4 ..., kn be respectively positioned on the outside of cabinet 20, specifically, the first knob
15, the second knob 16, third knob 17 and switch k1, k2, k3, k4 ..., kn is respectively positioned on the front panel of cabinet 20.
In practical applications, according to impedance or the low-impedance demand of drop is promoted, from first port N1 and second port N2
In determine input port and delivery outlet, and by the way of coaxial cable connection, driving power is connected to input port, and will
Load device is connected to delivery outlet；According to the required inductance precomputed, the first knob 15 is rotated with by multi gear position
Switch 14 turns on required driving switch, and rotating second knob 16 is to pass through regulating mechanism 13 for the electricity of controllable impedance 1
Sensibility reciprocal is adjusted to required inductance；According to the required capacitance precomputed, the switch of required closure is closed
It closes, rest switch remains off, so that the corresponding fixed capacity of switch of closure is connected in parallel, and rotates third knob 17
To adjust the capacitance of variable capacitance Cv, so that the capacitance of tunable capacitor 2 be made to reach required capacitance.Wherein, required
Inductance and required capacitance can be calculated according to target impedance and practical impedance.
In the present embodiment, controllable impedance 1 is by the driving switch conversion of multi gear bit switch 14 and magnetic core 12 in air core inductor
The adjusting of depth in 11 realizes a wide range of adjusting of the inductance of controllable impedance 1；Tunable capacitor 2 can be according to required capacitance
The size selection number of fixed capacity that needs to be connected in parallel, and adjust the capacitance of variable capacitance Cv, realize adjustable electric
Hold a wide range of adjusting of 2 capacitance.In conclusion the present embodiment is adjusted by the wide scope of controllable impedance 1 and adjustable electric
The wide scope for holding 2 capacitance is adjusted, so that the wide scope for realizing impedance matching in impedance matching is adjusted, in actual use
The impedance matching box of different impedance ranges can flexibly be produced.
In the present embodiment, from the aspects of using power, air core inductor is made using powerful copper pipe, use is high-power
Capacitor can make impedance matching box be applied to large-power occasions.And different capacity can be flexibly produced in actual use
Impedance matching box, a powerful impedance matching box also can be used while reaching wider use scope.
In the technical solution of the impedance matching box of ultrasonic transducer provided in this embodiment, impedance matching box includes adjustable electric
Sense and tunable capacitor, so that the wide scope for realizing impedance matching in impedance matching is adjusted, and adjusting is quick and convenient, mentions significantly
The high speed of impedance matching.In the present embodiment, the match parameter broad covered area of impedance matching box, adjustable range is very wide, thus
Substantially increase capacity utilization.In the present embodiment, impedance matching box power is big, function is more, to meet most of output
It is required that.
Fig. 4 is a kind of structural schematic diagram of the impedance matching system of ultrasonic transducer provided by Embodiment 2 of the present invention, such as
Shown in Fig. 4, the impedance matching system of the ultrasonic transducer includes: the resistance of ultrasonic transducer 3, driving power 4 and ultrasonic transducer
Anti- adaptation 5.Driving power 4 is connect by the impedance matching box 5 of ultrasonic transducer with ultrasonic transducer 3.
Specifically, driving power 4 is connected to first port N1, and ultrasonic transducer 3 is connected to second port N2；Alternatively, driving
Dynamic power supply 4 is connected to second port N2, and ultrasonic transducer 3 is connected to first port N1.
In the present embodiment, the ultrasonic transducer of the offer of above-described embodiment one is can be used in the impedance matching box 5 of ultrasonic transducer
Impedance matching box, details are not described herein again.
In the technical solution of the impedance matching system of ultrasonic transducer provided in this embodiment, impedance matching box includes adjustable
Inductance and tunable capacitor, so that the wide scope for realizing impedance matching in impedance matching is adjusted, and adjusting is quick and convenient, significantly
Improve the speed of impedance matching.In the present embodiment, the match parameter broad covered area of impedance matching box, adjustable range is very wide, from
And substantially increase capacity utilization.In the present embodiment, impedance matching box power is big, function is more, to meet most of defeated
It requires out.
The embodiment of the present invention three provides a kind of ultrasonic transducer therapeutic equipment, which includes super
The impedance matching system of sonic transducer.Wherein, the offer of above-described embodiment two can be used in the impedance matching system of ultrasonic transducer
The impedance matching system of ultrasonic transducer, details are not described herein again.
In the technical solution of ultrasonic transducer therapeutic equipment provided in this embodiment, impedance matching box include controllable impedance and
Tunable capacitor, so that the wide scope for realizing impedance matching in impedance matching is adjusted, and adjusting is quick and convenient, substantially increases
The speed of impedance matching.In the present embodiment, the match parameter broad covered area of impedance matching box, adjustable range is very wide, thus significantly
Improve capacity utilization.In the present embodiment, impedance matching box power is big, function is more, requires to meet most of output.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of impedance matching box of ultrasonic transducer characterized by comprising controllable impedance and tunable capacitor；
The first end of the controllable impedance is connected to first end point, and the second end of the controllable impedance is connected to the tunable capacitor
First end and second end point；
The first end of the tunable capacitor is connected to the second endpoint, and the second end of the tunable capacitor is connected to third endpoint and
Four endpoints, the first end point and the third endpoint form first port, and second endpoint and the 4th endpoint are formed
Second port.
2. the impedance matching box of ultrasonic transducer according to claim 1, which is characterized in that the controllable impedance includes sky
Electrocardio sense, magnetic core, regulating mechanism and multi gear bit switch, each driving switch in the multi gear bit switch are connected to described hollow
Corresponding position on inductance；
The regulating mechanism is used to adjust the magnetic core into the depth in the air core inductor.
3. the impedance matching box of ultrasonic transducer according to claim 1, which is characterized in that the tunable capacitor includes more
A fixed capacity being arranged in parallel；
The first end of each fixed capacity be connected to controllable impedance second end and second endpoint, the of each fixed capacity
Corresponding switch is provided between two ends and the third endpoint and the 4th endpoint.
4. the impedance matching box of ultrasonic transducer according to claim 3, which is characterized in that the tunable capacitor also wraps
Include: variable capacitance, the variable capacitance are arranged in parallel with multiple fixed capacities；
The first end of the variable capacitance be connected to controllable impedance second end and second endpoint, the of the variable capacitance
Two ends are connected to the third endpoint and the 4th endpoint.
5. the impedance matching box of ultrasonic transducer according to claim 3, which is characterized in that the multiple fixations being arranged in parallel
Capacitor is arranged successively；Since third fixed capacity, the capacitance of each fixed capacity is the capacitor of preceding multiple fixed capacities
The sum of amount.
6. the impedance matching box of ultrasonic transducer according to claim 3, which is characterized in that further include: circuit board, it is described
The multiple fixed capacities being arranged in parallel are provided on circuit board.
7. the impedance matching box of ultrasonic transducer according to claim 2, which is characterized in that further include: the first knob and
First connection structure, first knob are connect by first connection structure with the multi gear bit switch.
8. the impedance matching box of ultrasonic transducer according to claim 2, which is characterized in that further include: the first knob and
Second connection structure, second knob are connect by second connection structure with the regulating mechanism.
9. a kind of impedance matching system of ultrasonic transducer characterized by comprising ultrasonic transducer, driving power and right
It is required that the impedance matching box of 1 to 8 any ultrasonic transducer, the impedance that the driving power passes through the ultrasonic transducer
Adaptation is connect with the ultrasonic transducer；
The driving power is connected to the first port, and the ultrasonic transducer is connected to the second port；Alternatively,
The driving power is connected to the second port, and the ultrasonic transducer is connected to the first port.
10. a kind of ultrasonic transducer therapeutic equipment, which is characterized in that the impedance including ultrasonic transducer as claimed in claim 9
Matching system.
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