Quantum backaction disturbs the measurement of position a mechanical oscillator by introducing additional fluctuations. In quantum technique, can be evaded, although at cost losing part information. this work, we carry out such using large 0.5 mm diameter silicon nitride membrane with 707 kHz frequency, via microwave cavity readout. The shows that noise evaded in quadrature motion object.

AbstructThis paper discusses an approach to model the inputloutput characteristics of the Sinus-6 electron beam accelerator-driven backward wave oscillator. Since the Sinus-6 is extremely fast to warrant the inclusion of dynamical effects, and since the sampling interval in the experiment is not fixed, a static continuous neural network model is used to fit the experimental data. Simulation res...

We report microwave transmission measurements of superconducting Fabry-Perot resonators, having a superconducting nanowire placed at a supercurrent antinode. As the plasma oscillation is excited, the supercurrent is forced to flow through the nanowire. The microwave transmission of the resonator-nanowire device shows a nonlinear resonance behavior, significantly dependent on the amplitude of th...

This paper describes various methods of generation of microwave chaos signal spectrum origin from certain continuous dynamical systems – that may exhibit dynamics of signals that are highly sensitive to initial conditions. Many side lobes in chaos signal spectrum which makes the unambiguous detection difficult because of the spectrum of the chaotic signal is not very fat and smooth, with pulsat...

Respiratory activity is an important parameter for observation of human body activity. A normal adult has a respiratory rate of 12–15 breaths/min in normal conditions. Breath sensor based on non-contact Doppler detector allows for the measurement and detection and the absence of the breathing action, which may cause death in a few minutes. The monitoring and detection of some respiratory abnorm...