A5010095728- Flow Measurement and Analysis
- Image and Object Detection Techniques
- Water Treatment and Disinfection
- Electronic Packaging and Soldering Technologies
- Ultrasonics and Acoustic Wave Propagation
- Piezoelectric Actuators and Control
- Advanced Measurement and Metrology Techniques
- Iterative Learning Control Systems
- Hydraulic and Pneumatic Systems
- Water Systems and Optimization
Harbin Institute of Technology
2010-2023
The electrical packaging for high power devices such as IGBT or MOSFET is achieved by heavy aluminum ultrasonic wire bonding. In this process, the amplitude stability of transducer determines bonding quality, which demands more accuracy in resonant frequency tracking (RFT) and constant control (CAC). investigation, we proposed a vector based (VRFT) (VCAC) to transducer. current dynamic branch was conducted calculating voltage Small signal model established applied into RFT CAC. A strategy...
A new method for calibrating the microcosmic model of water distribution network under circumstance that base demands have been known was set up. gray-model concerning ages, materials, and diameters pipes municipal up on basis measured representative friction factors, then factors all whole were estimated by gray-model. Thus, pipes' calibrated accurately using genetic algorithm with difference between adjusted be a penalty in objective function, making optimization process carried through...
The Butterworth-Van Dyke (BVD) model is a general method to express the performance of ultrasonic transducer. In this paper, we propose accurate parameter identification for BVD based on Right-semicircle Fitting Admittance (FIRFA). proposed algorithm consists two parts, which fast search series resonant frequency (FSSRF) and (IRFA). simulation are discussed. order verify algorithm, established an Ultrasonic Transducer Identification System (UTIS), composed voltage driving module, data...