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GENERAL ULTRASONIC SYSTEM
TRANSMITTER CIRCUIT ULTRASONIC TRANSDUCERS RECEIVER CIRCUIT MEASURING CIRCUIT ANALYZER CIRCUIT SIGNAL PROCESSOR DISPLAY CIRCUIT
GENERAL ULTRASONIC SYSTEM
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
Signal Generator Pulse Generator Modulator Electronic Switch Power Amplifier High Voltage Power Supply
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
TRANSMITTER CIRCUIT (1)
Pulse Generator
High Voltage Power Supply
Electronic Switch 100 V – 1500 V
Start
T
of
1T
TRANSMITTER CIRCUIT (2)
12 VSignal Generator
Pulse Generator
Modulator Power Amplifier
Start
fo
of
1
Transmitter Transducer Electric Acoustic Loudspeaker
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
TRANSMITTER TRANSDUCER
Straight beam transducer Angle beam transducer Transmitter/Receiver (TR) transducer Focused transducer Immersion transducer
ULTRASONIC TRANSDUCER
Wide-band Transducer
Narrow-band Transducer
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
Radiated Waves : Longitudinal Wave Transversal Wave Rayleigh Wave
RADIATED WAVES
Longitudinal wave Particle displacement parallel with wave direction
Transversal wave Particle displacement perpendicular to wave direction
Rayleigh wave (surface wave) Particle displacement in elliptic movement
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
Received Waves : Reflected Wave Transmitted Wave Refracted Wave Diffracted Wave Scattered Wave
RECEIVED WAVES
Transmitted wave
Reflected wave
Incident wave
Refracted wave
Incident wave
RECEIVED WAVES
Scattered waveIncident wave
Diffracted wave
T R2
Incident wave
R1 R3
Receiver Transducer Acoustic Electric Microphone
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
Pre-Amp Low Pass Filter High Pass Filter Amplifier
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
RECEIVER CIRCUIT
Pre-Amplifier LPF AmplifierHPF
Peak Detector Comparator Monostable Flip-Flop Oscillator Modulator Counter
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
MEASURING CIRCUIT
Time Analysis
Monostable
Frequency Analysis
Amplitude AnalysisPeak Detector
Comparator
Receiver Circuit
Start
Stop
Transmitted Signal
Received Signal
Reference Signal
Time Measurement
Start
Stop
Oscillator
Flip-Flop Modulator Counter
Monostable 1
Monostable 2
Time Amplitude Frequency
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
A/D Converter Microprocessor Micro Controller
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
Velocity Atenuation Frequency Contents
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
Calibration curve Neural network Spectroscopy Tomography
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
Oscilloscope Seven Segments Computer Display Liquid Crystal Detector
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
Materials : Metals, Polymers, Ceramics Concretes, Soils and Rocks Woods, Rubbers, Pulps Vegetables and Fruits Liquids and Gas
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
Measured Variables : Mechanical Properties Physical Properties Chemical Properties Process Variables
TRANSMITTER CIRCUIT
RECEIVER CIRCUIT
MEASURING CIRCUIT
ANALYZER CIRCUIT
SIGNAL PROCESSOR
DISPLAY CIRCUIT
T R
OBJECT
MEASURED VARIABLES• Mechanical Properties
– Young Modulus
– Shear Modulus
– Poisson Ratio
• Chemical Properties– Glucose
Concentration
– Salt Concentration
– Liquid Composition• Physical Properties
– Porosity
– Compressive Strength
– Firmness
– Mass density
– Viscosity
• Process Variables– Temperature
– Pressure
– Flow
– Level
