In the contest of the standard IEEE 1588, protocol for the synchronization of the node clock in Distributed System (DS), is of fundamental importance to assess the effectiveness of the synchronization. On the basis of this consideration, the aspect taken into account in the paper concerns the different measurement techniques pointed out in literature to evaluate the time delay occurring in (i) the DS among the synchronized node clocks, (ii) the telecommunication network respect to the reference clock, and (iii) the hardware and software path involved by the arrival of the command at the...
Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements · TC4 · 2008 · Download
Domenico Grimaldi, Francesco Lamonaca, Carmelo Macrì
The image correction based on the Wiener’s deconvolution is proposed by evaluating the Point-Spread Function (PSF) for motion blur alteration. This correction is experimented to reduce the number of rejected images by the pre-processing procedure pointed out to correct detection of the Micro Nucleuses into human lymphocyte images acquired from the Image Flow Cytometer. The proposed correction operates in conjunction with (i) the spatial filters, pointed out to correct the bad exposure, the Gaussian out of focus and the Gaussian noise, and (ii) the Wiener’s deconvolution with PSF...
Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements · TC4 · 2008 · Download
Romani A., Romani M., Neri P., Olivieri G., Tacconi D., Vignolini P.
The present work focuses mainly on evaluating the feasibility and economic sustainability of an integrated continuous soybean processing complex, having a capacity of 3,000 tons/24 hours, for the production of high quality oil for food, bio-lubricants, biodiesel and energy. The aim of this work is to estimate all input/output data based on the energy and material balanced calculation at each stage of soybean oil production in order to conduct a Life Cycle Assessment (LCA). Attention is also focused on the possibility of using soybean waste matter as a source of bioproducts possessing...
Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements · TC4 · 2008 · Download
Ieri Francesca, Pinelli Patrizia, Pucci Simone, Curradi Giampiero, Romani Annalisa
In food quality optical measurement methods are time- and solventconsuming and require specialized personnel and expensive instruments. CDR has created an innovative system (the FoodLab method) which permits determination of the total polyphenol value of an oil in a few minutes, using a micro quantity of sample. This innovative system was employed to evaluate polyphenols in extra virgin olive oil obtained from different geographical areas and olive cultivars and having a wide range of these compounds and in olive extracts, for a rapid and simple assessment of fruit ripening degree.
Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements · TC4 · 2008 · Download
In the paper a new testing method for spectral analysis of DACs is presented. The method requires low resolution high speed ADC to acquire the resulting signal obtained by adding to the output voltage of the DAC under test the periodic voltage with sawtooth shape. The zero crossing time sequence detected in the quantized signal is used to infer the value of the sawtooth voltage and, consequently, that of the output voltage of the DAC. Because the sampled signal is characterised by non-uniform sampling time, the spectral analysis is performed on the basis of a procedure pointed out to...
The paper presents the monitoring and measurement process for the remote object vibration in the plain space. Wireless, RF communication in Tx/Rx duplex mode provides transfer of data with ZigBee transceivers. Presented ZigBee technology operates in many various modes on frequency 2,4 GHz allowing the coordinator node to select certain path and data. Zig Bee technology can be alternative for other vibration research techniques. The vibration displacement is processed further by DSP Digital Signal Processing made with the microcontroller.
Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements · TC4 · 2008 · Download
Coherent sampling is a well known scheme for guaranteeing uniform distribution of sinewave phases. While such condition can be profitably exploited for testing Analog to Digital Converters (ADC) or Digital to Analog Converters (DAC), inaccuracies and non-idealities in both the signal generator and the sampling hardware make such condition rarely achievable. In this paper, the effect of deviations from the coherent sampling condition is analyzed, along with some effects on the related testing procedures.
Considered here are the units of length, mass and volume used in the Bible. The first part deals with the historical positioning of the occurrence of these measurement. The following will present the verses containing the names of these units.
Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements · TC4 · 2008 · Download
Jankowski Piotr, Dudojć Boleslaw, Mindykowski Janusz
In the paper authors present research results of a new simple optimeter used for register of ultra fast displacements of inductive-dynamic drive disk. Presented solution is characterised by very simple construction, high output signal and a relatively good linearity.
Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements · TC4 · 2008 · Download
In this work a general introduction to Helmholtz coil is presented and then attention is on a practical implementation of a wideband (50 kHz) coil for high magnetic flux density applications (several mT may be obtained). A specific winding design is presented that ensures wideband operation with a resonance frequency of 55 kHz in the present implementation. Performances of the square coils for different coil separation as reported in standards and literature are presented. Field uniformity is within ±1.5% and ±0.35% inside cubic volumes of 25% and 10% of the coil side respectively, so...
Exploring New Frontiers of Instrumentation and Methods for Electrical and Electronic Measurements · TC4 · 2008 · Download