Lectures related to Very low frequency

Radiation Impedance of Piston on Screen

Explores the radiation impedance of a piston on a screen using COMSOL Multiphysics, focusing on resistance, mass, and impedance expressions.

Proportional Derivative Control

Covers Proportional Derivative (PD) Control, feedback interpretation, and derivative action implementation in circuits.

Sound Field Reconstruction at Low Frequencies

Explores sound field reconstruction at low frequencies in rooms, emphasizing room modes, modal decomposition, and numerical validation.

Electroacoustic Absorbers: Experimental Evaluation

Explores electroacoustic absorbers as perfect anechoic terminations at low frequencies, presenting experimental evaluation and future perspectives.

Modeling Closed Enclosure: Subwoofer

Explores the sizing and characteristics of a closed subwoofer enclosure and the impact of absorbent materials on speaker volume.

Electroacoustic Absorbers: Introduction

Introduces electroacoustic absorbers for room modal equalization, focusing on improving the listening experience at low frequencies.

Piezoelectric Sensors: Doppler Effect Ultrasound Flow Meter

Explores piezoelectric sensors and the Doppler effect in ultrasound flow meters.

Mitigation Techniques: Shielded Wires and Low-Frequency Interference

Explores mitigation techniques using shielded wires for low-frequency interference and discusses capacitive and inductive coupling effects.

Improving Image Contrast: Fourier Filtering Techniques

Covers optical methods for improving image contrast using Fourier filtering techniques in a 4F optical setup.

Introduction on Loudspeaker Radiation

Introduces the electrodynamic loudspeaker, explains radiation types, and discusses bandwidth zones.

Semiconductor Devices II: Defects Engineering

Covers the analysis of measurements and defects engineering in semiconductor devices, including density of states and defect probing.

Cascode and Follower Amplifiers: Transistor Basics

Covers the principles of cascode amplifiers, push-pull amplifiers, and amplifier design.

Forced Harmonic Oscillator: Digital Solution

Explores forced harmonic oscillators, resonance, and effects of damping on mechanical oscillators.

Homodyne Receivers: Design and Challenges

Explores homodyne receivers, covering DC offset, channel selection, and offset cancellation, along with challenges like even-order distortion and LO leakage.