Low noise position measurement is fundamental for space inertial sensors, and at present the capacitive position sensor is widely employed for space inertial sensors. The design for the possible suppression of the front-end electric noises for a capacitive sensor is presented. A prototype capacitive sensor with 2×10−6pF/Hz1/2 at frequency above 0.04 Hz is achieved and further improvements are d...

The biological active points (BAP) are known as low resistance spots or good electro-permeable points, have relativelower electric resistance than the surrounding tissues. In this study, a new method for BAP detection using the bio-impedance measurement system based on the adaptive frequency trackingfilter (AFTF) and the transition event detector is presented

We show that a simple (few-element) arrangement for wavelength-multiplexed digital holography allows the measurement of the electric field E x ,y , t of a femtosecond laser pulse on a single shot. A slightly rotated twodimensional diffractive optical element and a variable-wavelength filter together generate multiple spectrally resolved digital holograms that are simultaneously captured in a si...

The complex dielectric constant is reported for multiwalled carbon nanotubes MWCNTs up to 105 Hz as a function of ac-electric field amplitudes Erot in phase and same frequency as the measurement and Eac different phase and fixed frequency with respect to the measurement . A slow relaxation process mode 1 is observed, which shifts to higher frequency with increasing Erot but is independent of Ea...

Introduction: Irreversible electroporation (IRE) is a process in which the membrane of the cancer cells are irreversibly damaged with the use of high-intensity electric pulses, which in turn leads to cell death. The IRE is a non-thermal way to ablate the cancer cells. This process relies on the distribution of the electric field, which affects the pulse amplitude, width, and electrical conducti...

In this paper, we present an RIP module with the features of supporting multiple inductive sensors, no variable frequency LC oscillator, low power consumption, and automatic gain adjustment for each channel. Based on the method of inductance measurement without using a variable frequency LC oscillator, we further integrate pulse amplitude modulation and time division multiplexing scheme into a ...

An electric field sensor calibration system that operates in the time-domain is described and its accuracy is assessed. The system makes use of a broadband, unterminated transient test cell that is simple to construct by comparison with matched TEM or GTEM cells. An advantage of the transient technique is that the frequency response of the test equipment does not have to be characterised. Furth...

We report the design, fabrication, and measurement of a terahertz metamaterial composed of single geometry electric field coupled resonators that has two closely spaced electric resonances near 1.0 and 1.5 THz. Due to the mutual coupling between the different resonances in the particle, the lower frequency resonance of this metamaterial is stronger than that in a metamaterial composed of identi...

A new macrocell prediction model for mobile radio environment is presented. The use of feedforward artificial neural networks makes it possible to overcome some important disadvantages of previous prediction models, including both deterministic and statistical types. Our sample implementation is based upon extensive electric field strength measurements (in the 900-MHz frequency band) that were ...

Abstract: The proposed method allows determining the level of wear of the bearings of electric machines by means of rotor radial displacement during operation. Measurement is effected by non-contact method and optoelectronic sensor which converts the rotor mechanical motion into electric signal. Received informational signal is recorded and processed by computer system. Based on the processed i...