CN216595472U - Ultrasonic simulation load calibrating device - Google Patents
Ultrasonic simulation load calibrating device Download PDFInfo
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- CN216595472U CN216595472U CN202123183213.7U CN202123183213U CN216595472U CN 216595472 U CN216595472 U CN 216595472U CN 202123183213 U CN202123183213 U CN 202123183213U CN 216595472 U CN216595472 U CN 216595472U
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Abstract
The utility model discloses an ultrasonic simulation load calibration device, which comprises an ultrasonic impedance analyzer, an ultrasonic driver, an oscilloscope, a simulation load and a selector switch, wherein the simulation load comprises a first switch, a second switch and a third switch; the analog load comprises an RLC series circuit and a capacitor connected with the RLC series circuit in parallel; the change-over switch is arranged between the analog load and the ultrasonic impedance analyzer and between the change-over switch and the ultrasonic drive, the analog load is communicated with the ultrasonic impedance analyzer when the change-over switch is in a first state, and the analog load is communicated with the ultrasonic drive when the change-over switch is in a second state. Due to the adoption of the technical scheme, compared with the prior art, the utility model has the advantages of small volume, stable impedance for a long time and capability of operating for a long time under high power. The device has the advantages of stable work, large power capacity, large adjustable range, high working frequency, portability and the like, and can be used in the fields of ultrasonic-driven research, ultrasonic calibration and measurement, matching of ultrasonic systems and the like.
Description
Technical Field
The utility model relates to the technical field of ultrasonic devices, in particular to an ultrasonic simulation load calibration device.
Background
Ultrasonic waves refer to sound waves with frequency more than 20KHz, and have been widely used in the industrial fields of ultrasonic cleaning, ultrasonic detection and the like, and the medical fields of ultrasonic knife operation, ultrasonic atomization, B-ultrasonic examination, ultrasonic pharmacy and the like due to good directivity and strong penetrating power.
The electric driving part of the ultrasonic equipment usually uses a pressure type motor such as pneumatic, electric and the like to apply pressure to the transducer to simulate the load, the equipment is expensive and huge, if the driving power is slightly larger, the temperature rise of the load can seriously affect the accuracy of the test, and the equipment is not suitable for calibration.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that the existing ultrasonic equipment in the background art is large in load size and not suitable for calibration, the utility model provides an ultrasonic simulation load calibration device, and the specific technical scheme is as follows.
The utility model provides an ultrasonic wave analog load calibrating device, includes ultrasonic impedance analysis appearance, ultrasonic drive and oscilloscope, its characterized in that: the device also comprises a simulation load and a change-over switch; the analog load comprises an RLC series circuit and a capacitor connected with the RLC series circuit in parallel; the change-over switch is arranged between the analog load and the ultrasonic impedance analyzer and between the analog load and the ultrasonic drive, the analog load is communicated with the ultrasonic impedance analyzer when the change-over switch is in a first state, and the analog load is communicated with the ultrasonic drive when the change-over switch is in a second state; the voltage sampling end of the oscilloscope is electrically connected with one end of the ultrasonic drive, and the current sampling end of the oscilloscope is electrically connected with the other end of the ultrasonic drive.
Preferably, the change-over switch is a double-pole double-throw switch; two ends of the capacitor are respectively and electrically connected with a first fixed contact and a second fixed contact of the double-pole double-throw switch; two ends of the ultrasonic impedance analyzer are respectively and electrically connected with two first moving contacts of the double-pole double-throw switch; and two ends of the ultrasonic drive are respectively and electrically connected with two second moving contacts of the double-pole double-throw switch.
Preferably, a heat sink is further disposed in the vicinity of the resistor in the RLC series circuit.
Compared with the prior art, the utility model has small volume, can realize long-time impedance stability and can operate for a long time under high power. The device has the advantages of stable work, large power capacity, large adjustable range, high working frequency, portability and the like, and can be used in the fields of ultrasonic-driven research, ultrasonic calibration and measurement, matching of ultrasonic systems and the like.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
Referring to fig. 1, an ultrasonic analog load calibration device includes an ultrasonic impedance analyzer, an ultrasonic driver and an oscilloscope, and is characterized in that: the device also comprises an analog load and a double-pole double-throw switch; the analog load comprises an RLC series circuit and a capacitor connected with the RLC series circuit in parallel; two ends of the capacitor are respectively and electrically connected with a first fixed contact and a second fixed contact of the double-pole double-throw switch; two ends of the ultrasonic impedance analyzer are respectively and electrically connected with two first moving contacts of the double-pole double-throw switch; and two ends of the ultrasonic drive are respectively and electrically connected with two second moving contacts of the double-pole double-throw switch.
The voltage sampling end of the oscilloscope is electrically connected with one end of the ultrasonic drive, and the current sampling end of the oscilloscope is electrically connected with the other end of the ultrasonic drive.
And a heat dissipation device is arranged near the resistor in the RLC series circuit.
The ultrasonic output power of the driving system is 35w, the frequency is 52 kHz-58 kHz:
as shown in fig. 1, the type of the capacitor C0 is selected to withstand voltage of 1000V, the capacitance value is adjusted to 3.3nF, the process is CBB, and the number is one; the model of R1 is selected as a high-power non-inductive resistor, the resistance value is adjusted to 10 ohms, the power is 50w, and the high-power non-inductive resistor is fastened on a radiator by screws; c1 belongs to a resonance capacitor, a withstand voltage of 1000V is adopted, and the capacitance value is adjusted to 792 pF; l1 is an enameled wire with a diameter of 0.65mm, and the enameled wire is wound on an insulator with a diameter of 5cm and a length of 10 cm to form a hollow inductor, the number of turns is about 300-500, and the total inductance value is about 10.1mH measured by a precision electric bridge.
When the ultrasonic impedance analyzer works, firstly, the double-pole double-throw switch is switched to the group 1 of pins with the serial number, the electronic analog load is connected to the ultrasonic impedance analyzer, the measured resonant frequency of the ultrasonic impedance analyzer is 56154Hz, and the Q value is 53.
Then the double pole double throw switch is opened to 2 groups of pins, so that the electronic analog load is connected to the ultrasonic drive, the drive can automatically track the resonant frequency of the load, the output frequency is positioned at the resonant frequency, the resonant frequency can be stabilized to 55760Hz quickly, and the frequency and the power are basically unchanged after one hour of operation.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (3)
1. The utility model provides an ultrasonic simulation load calibrating device, includes ultrasonic impedance analysis appearance, ultrasonic drive and oscilloscope, its characterized in that: the device also comprises a simulation load and a change-over switch; the analog load comprises an RLC series circuit and a capacitor connected with the RLC series circuit in parallel; the change-over switch is arranged between the analog load and the ultrasonic impedance analyzer and between the analog load and the ultrasonic drive, the analog load is communicated with the ultrasonic impedance analyzer when the change-over switch is in a first state, and the analog load is communicated with the ultrasonic drive when the change-over switch is in a second state; the voltage sampling end of the oscilloscope is electrically connected with one end of the ultrasonic drive, and the current sampling end of the oscilloscope is electrically connected with the other end of the ultrasonic drive.
2. The ultrasonic analog load calibration device of claim 1, wherein: the change-over switch is a double-pole double-throw switch; two ends of the capacitor are respectively and electrically connected with a first fixed contact and a second fixed contact of the double-pole double-throw switch; two ends of the ultrasonic impedance analyzer are respectively and electrically connected with two first moving contacts of the double-pole double-throw switch; and two ends of the ultrasonic drive are respectively and electrically connected with two second moving contacts of the double-pole double-throw switch.
3. An ultrasonic artificial load calibration device according to claim 1 or 2, wherein: and a heat dissipation device is arranged near the resistor in the RLC series circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123183213.7U CN216595472U (en) | 2021-12-17 | 2021-12-17 | Ultrasonic simulation load calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123183213.7U CN216595472U (en) | 2021-12-17 | 2021-12-17 | Ultrasonic simulation load calibrating device |
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| CN216595472U true CN216595472U (en) | 2022-05-24 |
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| CN202123183213.7U Active CN216595472U (en) | 2021-12-17 | 2021-12-17 | Ultrasonic simulation load calibrating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117770912A (en) * | 2024-02-28 | 2024-03-29 | 锐曜石医疗科技(苏州)有限公司 | Ultrasonic simulation load calibration method of ultrasonic surgical instrument |
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2021
- 2021-12-17 CN CN202123183213.7U patent/CN216595472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117770912A (en) * | 2024-02-28 | 2024-03-29 | 锐曜石医疗科技(苏州)有限公司 | Ultrasonic simulation load calibration method of ultrasonic surgical instrument |
| CN117770912B (en) * | 2024-02-28 | 2024-04-26 | 锐曜石医疗科技(苏州)有限公司 | Ultrasonic simulation load calibration method of ultrasonic surgical instrument |
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