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Questions related from Ju Cheng
I want to know can I use fdtd to simulate the behavior of a single photon inside a mach zehnder? If not, how can I calculate the needed parameters of a mach zehnder for a single photon?
31 January 2023 2,963 0 View
I am designing an inverter circuit to produce 20khz, high current and high voltage power for an ultrasonic transducer. I want to know what are the parameters in choosing a mosfet for my application?
17 December 2022 7,021 2 View
what are the methods to protect mosfets in a high current and high voltage inverter?
17 December 2022 6,356 3 View
I am looking for a circuit design of a 200 watts ultrasonic homogenizer. I would appreciate if you share any data about this
26 April 2022 3,758 2 View
I am looking for a technical guide for ultrasonic homogenizer design and manufacture. I need a detailed explanation about how to design a transducer, booster and horn system for homogenizing...
20 April 2022 1,008 6 View
I want to make a magnetostrictive ultrasonic transducer for homogenizing applications. I also want to make its power supply by myself. I need some references (papers, patents, reports, books...
10 January 2022 2,132 3 View
There are two types of ultrasonic transducers: piezoelectric and magnetostrictive. My question is: Can the same power supply(generator) used for piezoelectric ultrasonic transducers be used for...
09 January 2022 3,659 2 View
I want to find the resonance and anti-resonance frequencies of an ultrasonic transducer by analyzing its impedance. so I need to buy a impedance analyzer or spectrum analyzer or something like...
27 September 2021 8,869 5 View
is it possible to make a DIY impedance analyzer for checking the resonance frequency of high power ultrasonic transducers? for example a face mask welding ultrasonic transducer
15 September 2021 4,071 3 View
I want to test a wire to see is it a pure tungsten wire or not. I guessed I can do it simply by measuring its resistance, but I need to know the value of the specific resistance for 99% tungsten...
22 March 2021 4,203 2 View
I need to design and make a high voltage power supply to use in a lab made electrostatic precipitation with this specs: Input voltage: AC: 220 volt Output voltage: DC: 5-20 KV (Continuous...
10 April 2020 5,357 21 View
Hi, I am working on making an air cleaner, now I need to make a "smoke generator" for my demo device, to show its working principles. it needs to be stable and generate almost uniform and...
07 August 2019 4,275 1 View
What are the advantages and disadvantages of cylindrical electrode configuration comparing to wire-sheet configuration in a electrostatic precipitator(dust electrostatic collector)?
29 July 2019 7,618 0 View
I want to simulate a sono-reactor. Can anyone share a reliable simulation file for simulation of a power ultrasonic transducer and horn in ANSYS or COMSOL with me please?
01 January 1970 2,493 2 View
