Soft phase-locked loop design for wind power generation

Bai-shan, Mei; Fu, Chenglong

doi:10.1109/iciea.2011.5976048

Cited by 1 publication

(1 citation statement)

References 5 publications

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“…To achieve the detection of the resonance frequency signals of multiple channels of microcantilevers, an interface circuit system is designed, and the core of the system is a phase-locked loop (PLL) [34]. Due to the limitations of the analog circuit phase-locked loop, this paper adopts a LabVIEW-based software phase-locked loop [35][36][37][38], which can quickly and accurately track the changes in the resonance frequency and avoid the complexity of the analog phase-locked loop.…”

Section: Introductionmentioning

confidence: 99%

An Engineering Method for Resonant Microcantilever Using Double-Channel Excitation and Signal Acquisition Based on LabVIEW

et al. 2023

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Resonant microcantilevers have the advantages of ultra-high heating rates, analysis speed, ultra-low power consumption, temperature programming, and trace sample analysis when applied in TGA. However, the current single-channel testing system for resonant microcantilevers can only detect one sample at a time, and need two program heating tests to obtain the thermogravimetric curve of a sample. In many cases, it is desirable to obtain the thermogravimetric curve of a sample with a single-program heating test and to simultaneously detect multiple microcantilevers for testing multiple samples. To address this issue, this paper proposes a dual-channel testing method, where a microcantilever is used as a control group and another microcantilever is used as an experimental group, to obtain the thermal weight curve of the sample in a single program temperature ramp test. With the help of the LabVIEW’s convenient parallel running method, the functionality of simultaneously detecting two microcantilevers is achieved. Experimental validation showed that this dual-channel testing system can obtain the thermogravimetric curve of a sample with a single program heating test and detect two types of samples simultaneously.

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