Ultrasonic Signals
Encoding ultrasonic signals to improve the signal to noise ratio for the inline inspection of spot welds
... Encoding ultrasonic signals to improve the signal to noise ratio Encoding ultrasonic signals to improve the signal to noise ratio for the inline inspection of spot welds.. for the inli[r] ...
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Arrival Time Difference Estimation of Ultrasonic Signals from Partial Discharge in Electric Power Equipments
... an ultrasonic signal is ...the ultrasonic signal, however, the traditional signal arrival time difference estimation methods are not ideal for the actual low signal-to-noise ratio and narrow-band ...
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Damage Detection in a Plate Structure based on FBG sensing Technique under a Single-Mode Lamb Wave
... of ultrasonic guided wave in each propagation path based on correlation analysis and the defect imaging map represented by probability values, and realized positioning and identification of artificial defects in ...
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Predicting lifetime of thick Al wire bonds using signals obtained from ultrasonic generator
... over their lifetime, they can also be more of an indication of the wire’s mechanical properties, rather than the integrity of the interconnection itself. Unsurprisingly, there have been several efforts in the literature ...
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Smart Trash Can Monitoring System using IoT Creating Solutions for Smart Cities
... The ultrasonic sensor is used to measure the distance to an ...An ultrasonic sensor has two mesh holes one part is for sending the sound out and the other one is microphone, which can measure the sound ...
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Data-driven analysis of ultrasonic pressure tube inspection data
... unlabeled ultrasonic signals is being approached by an unsupervised clustering machine learning algorithm called DBSCAN (Density-Based Spatial Clustering of Applications with Noise) ...inspection ...
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Application of Model-Based Estimation to Time-Delay Estimation of Ultrasonic Testing Signals
... of ultrasonic signals used in ultrasonic thickness ...gaging. Ultrasonic thickness gaging is based on precise measurement of the time difference between successive echoes which reflect back ...
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Design and Development of Ultrasonic and IR Insect Detector for Oilseeds Crop
... of ultrasonic waves is sound ...produce ultrasonic waves which can be detected by the Acoustic Emission ...At ultrasonic frequencies, most human activities do not generate much acoustic ...
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Fast Chirped Signals for a TDMA Ultrasonic Indoor Positioning System
... for ultrasonic indoor positioning based on instantaneous frequency of ultrasonic signals is ...of ultrasonic transducers introduce a frequency deviation in ultrasonic ...of ...
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DISTANCE ESTIMATION USING OFDM SIGNALS FOR ULTRASONIC POSITIONING
... using ultrasonic Orthogonal Frequency Division Multiplexing (OFDM) ...OFDM signals allows the signals and their sub-carriers to remain orthogonal to each other while continuously ...for ...
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CONSTRUCTION AND PERFORMANCE EVALUATION OF AN ULTRASONIC DISTANCE METER
... In this research work, room temperature of 25 0 c was assumed. Hence, the velocity of ultrasonic in air is taken as 346m/s. Because the travel distance is very short, below 30cm, the travel time is little affected ...
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ULTRASONIC WAVES - MEASUREMENT OF THE ULTRASONIC VELOCITY OF WATER
... As ultrasonic in general follows the principles delineated in acoustics, its development particularly in the early years. Is to some extent embedded in the broad developments in acoustics. The study of acoustics ...
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Interval Dependant Thresholding based De noising of Ultrasonic TOFD Signals from Austenitic Stainless Steel Welds
... Echo signals obtained by the receiver are also accompanied by ambient scattering noise due to the signal interaction with the grains of the ...the signals in which thresholding of high frequency components ...
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Size Dependent Elastic and Thermophysical Properties of Zinc Oxide Nanowires166-176
... The ultrasonic behaviour discussed above indicates important microstructural characteristic features which are well bridged to the thermoelastic properties of the ...and ultrasonic properties of ZnO- NWs ...
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SECURE ROUTING IN MANET USING ASYMMETRIC GRAPHS
... The ultrasonic cavitation threshold and ultrasonic frequency are closely related; the cavitation threshold increases with ...of ultrasonic frequency, the duration of the ultrasonic inflation ...
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Obstacle Avoidance Gloves for the Blind Based on Ultrasonic Sensor
... of ultrasonic sensor is as follows: 1) using I/O to trigger ranging and supply high-level signals of at least 10 us; 2) the module automati- cally transmits eight square waves of 40 kHZ to detect the ...
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High frequency ultrasonic assisted mass transfer for water batch reactor
... frequency ultrasonic irradiation generates a higher streaming turbulent ...frequency ultrasonic irradiation. In this paper, a high frequency ultrasonic assisted mass transfer was studied in a water ...
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Ultrasonic Range Meter
... LIST OF FIGURE TITLE Ultrasonic Range Meter The process of Ultrasonic Range Meter block diagram The circuit of Ultrasonic Range Meter The transmitter block The signal amplification circu[r] ...
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A Low Intensity Ultrasound Neural Modulation System for Brain Stimulation
... chosen ultrasonic frequency belong to the passband of the resonant circuit, use L-type matching circuit to convert the sensor impedance to the amplifier load impedance at frequency ...
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Heart Diseases Diagnosis Using Intelligent Algorithm Based on PCG Signal Analysis
... This paper presents an intelligent algorithm for heart diseases diagnosis using phonocardiogram (PCG). The proposed technique consists of four stages: Data acquisition, pre-processing, feature extraction and ...
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