Background: All body systems involved in ensuring a healthy posture (musculoskeletal system, oculomotor, oto-vestibular and occluso-cranial-mandibular) are essential maintaining postural balance. Research Question: Does experimental malocclusion subjects static position determine variations plantar pressure? Methods: Overall, 31 were included the study. The pressure was evaluated five different points: lateral medial heel, midfoot, 1st 5th metatarsal area. Using specially designed splint, an...

This paper describes the software and hardware approach for building a wireless data logger thermal validation systems. It must meet international European regulations of pharmaceutical, biotechnology medical device (EN 285, EN 554, HTM 2010). The temperature range is from -60°C to 150°C with total system measurement accuracy 0.1°C all measurements. These equipments measure function in specified range.

This article wants to reveal a new method measure and moderate vibrating wire transducer. Combining complex measuring procedure that includes data acquisition MatLab application, it is possible calculate the transducer's impedance. Furthermore, using higher frequencies (as resonance frequency), respectively lower signals, technique above evaluates correctly some parameters where previously unavailable also calculates impedance's real imaginary parts. The processes are fully automated under...

The vibrating wire transducer represents, basically, a damped oscillating resonant circuit tuned on the mechanical frequency and measure majority of physical input parameters (forces, strains etc.) in hydro-technical buildings. In order to implement an automatic data acquisition system for dams monitoring, which measures output signal those transducers, exists necessity theoretical electrical model that simulates real transducers. Setting equivalent supposes, first time, determine itself....

The vibrating wire transducer represents, basically, a damped oscillating resonant circuit tuned on the mechanical frequency. Determining equivalent electrical for transducers without mutual couplings is very important step because implementing PSPICE models behavior analysis cannot be made correctly with mutually coupled impedances. have major impact in choosing excitation method to used and establishing best criteria that reveal main parameters as well. This paper follow up of our previous...

The paper is focused on an experimental design of Fast Fourier Transform core implemented in FPGA. It well known that frequency domain analysis very important digital signal processing application field and wouldn't be possible without calculation. novelty the part this study lie into array complex multipliers based DSP48 slices within FPGA resources. These are able to run simultaneously order reduce time N points FFT. goal calculate coefficients from a discrete input sequence samples....

Printed circuit board layout becomes more complex because of the increased devices pin density and system frequency, respectively. A successful high-speed must effectively integrate other elements while avoiding signal transmission problems associated with I/O standards. This paper provides guidelines for effective 2.4GHz wireless Data Logger used to measured temperature, regarding following issues: PCB material selection, line layouts, routing schemes minimizing crosstalk maintaining...

To ensure the hydro-energetic building reliability, specific quantities need to be monitored. The temperature, pressure, deformation, mechanical stress, etc. are often measured using resistive gauges, spread in whole structure of construction. transducers based on variation and constructive realized by one or two resistances serial connection. measure transducer can used consecrate method, Wheatstone bridge. define bridge is from transducer, other reference resistor, located measurement...

Complex displacements in hydroelectric buildings represent the most important quantities, which define dam stress behaviour, depending on water lake level and variations of environment temperature. For monitoring global deformations, dams are equipped with one or more pendulum wire, cross entire height structure, different vertical sections. The types can be: direct, this case anchor point for steel wire is upper part, invert, where foundation rock. measurement points positions situated...

Many products currently take advantage of microcontroller and are capable creating an analogue - to digital (A/D) converter with very little extra hardware or software. In effort make the design more competitive, typical successive approximation A/D (ADC), on board, can be replaced by several low cost PWM structure. The designer must first determine true system requirements then select approach that best meets those requirements. Quite often when a discrete ADC is designed, tradeoffs made...

The stack-up for printed circuit boards is one of the most important factors in defining performance. In this paper, we proposed a mixed-signal system that caters problem EMI suppression, noise, signal and power integrity. provides two external controlled impedance layers buried layer, which may be used to route supplies rails analog circuits. It also has ground layer supply with an excellent interplane capacitance. Besides this, offers minimum loop area plane noise coupling.

In order to improve Signal Integrity (SI) in parallel data busses physical techniques are used. However, the have disadvantage that affect component placing resulting an increase of Printed Circuit Board (PCB) size. A solution is code sent information, so a Forbidden Transition Channel (FTC) created, [1]. When it comes transmission, not only SI-analysis, but Power (PI) analysis also important. Through such PI-analysis possible determine voltage fluctuations might appear because switching...

This paper proposes a software and hardware solution for real time condition monitoring applications. The proposed device, called XpertTrack, exchanges data through the GPRS protocol over GSM network monitories temperature vibrations of critical merchandise during commercial shipments anywhere on globe. Another feature this tracker is to provide GPS positioning with precision 10 m or less. In order interpret merchandise, acquisition, analysis visualization are done 0.1 °C accuracy sensor,...

This paper presents the implementation of a signal generator using 12-bit DAC. The applications were developed in LabView software and are used for transposing FPGA code sequences communicating with DAC analytical generated signal. For practical following hardware components used: Spartan 3E development board peripheral module PmodDA2. waveform is set based on an expression implemented (with PC host) MathScript function. Signal generation possible by PmodDA2 module. Infinite discrete form...

The paper analyses a new lab concept, in all its aspects: the method, flow, instruments, platform, requirements and results. Theory, simulation, hands-on experiment verification concur confirm each other. However, differences between theoretical equations, simulation model analysis experimental measurements are emphasized. Multisim SW was used for editing simulating schematics, Ultiboard layout, "Analog Discovery" workbench WaveForms functional analysis. Three years of conducting demonstrate...

Actual paper describes two implementation methods of an elliptical low pass filter using copper disc sectors on a PCB substrate. The main idea was to replace the series resonant branches circuit with radial stubs, which have same equivalent at high frequencies. Different approaches shapes and placement stubs were made during study. Substrate material printed board dielectric permittivity variation as function frequency also characterized. Radial are largely used for decades in microwave...

The forklift is an industrial vehicle used for transporting different loads indoors (warehouses) and outdoors. It usually has 2 prongs lifting 4 wheels. This prototype aims to solve the lack of maneuvering space typical in crowded warehouses by replacing regular wheels with omnidirectional Mecanum types movement. uses dual motor drivers (H-Bridge) 12V DC motors one driver mechanism high torque stepper motor. power supplied from a 11.1V 2700mAh LiPo other circuits. robot controlled mobile phone.

Data converters are essential parts that enable communication between the external analog world and digital devices. They should not compromise precision even though hardware in which they implemented relies on semiconductor devices known for their poor accuracy. Experimentation is to become fully acquainted with performances. Theory generally unable quantitatively trace impact of impairments due large amount data must be handled. Mathematical models simulations provide a clean insight view....

This paper describes a specific cooling system based on forced convection. The main purpose of the is to evacuate heat generated by power surface mount components like: high speed converters, frequency clock synthesizers, linear circuits etc. During study, transfer types as conductive and convection were described using mathematical model system. Due fact that one most used solutions in electronic design, actual focuses design implementation flat aluminum pipe airflow guidance element. A...