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Single-transducer ultrasonic continuous-wave system for ...

2011-10-21  Single-transducer ultrasonic continuous-wave system for transmitting coded sequences Abstract: A major challenge in CW ultrasonic imaging is to handle the electrical crosstalk induced during transmission. Electrical cross talk in terms of transient currents may also impose problems for pulsed wave (PW) systems, e.g. in near field imaging where ...

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Ultrasonic Communication Systems for Data Transmission

2020-10-2  Ultrasonic wave can propagate through solid, liquid or gas media and consequently can be used as the carrier of the information for communications. In this paper, we examine the feasibility of using the ultrasonic signal for communication in solid media. Characteristic of ultrasonic waves in the solid channel are studied

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US4380930A - System for transmitting ultrasonic energy ...

A system for measuring ultrasonic (50 Khz-10 Mhz) velocity and attenuation in core samples employs transmitting and receiving transducers for generating and receiving ultrasonic energy in a core...

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Ultrasonic wave transducer system and ultrasonic wave ...

2001-3-15  There is disclosed an ultrasonic transducer system for harmonic imaging, comprising: an ultrasonic transducer comprising a transmitting ultrasonic vibrator for transmitting a fundamental ultrasound having a center frequency f0, and a receiving ultrasonic vibrator for receiving a harmonic signal having a center frequency nf0 (n is an integer of 2 or more); and control means for controlling

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Software Defined Ultrasonic System for Communication ...

2020-10-2  Ultrasonic signal is a type of waveform which has a frequency higher than 20 kHz. In this study, a ZYNQ System-on- Chip (SoC) platform is used to conduct ultrasonic communication experiments. This system consists of a transmitting transducer and a receiving transducer operating at MHz range frequencies.

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© 2019 JETIR May 2019, Volume 6, Issue 5 Ultrasonic ...

2021-7-23  transmitting ultrasonic sound waves, and transforms the sound reflected into an electrical signal. Ultrasonic waves propagate quicker than visible sound (i.e., sound that can be heard by humans). Ultrasonic sensors have two main components: the transmitter (which uses piezoelectric crystals

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Multiple-frequency ultrasonic imaging by transmitting ...

Request PDF Multiple-frequency ultrasonic imaging by transmitting pulsed waves of two frequencies Purpose The aim of this study was realization of a broadband measurement system that is ...

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Development of an ultrasonic wave emission system based

2020-1-3  Figure 19(a) is a screen when transmitting ultrasonic waves at 20.67 kHz, and Fig. 19(b) is a screen when transmitting ultrasonic waves at 39.47 kHz. The setting of the sound wave emission amount can be set by utilizing the sound wave information stored for each crop or

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Two-Frequency Ultrasonic System with Direct Digital ...

2015-7-28  Most ultrasonic systems for air temperature measurement are based on the time-of-flight (TOF) method.(5) In the TOF method, the time required for an ultrasonic wave to travel from a transmitter to a receiver is measured. The speed of sound, c, is evaluated as c = d/T F, where d is the distance between the transmitter and the receiver, and T F ...

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Real Time Wireless Flood Monitoring System Using ...

2020-4-19  Both continuous wave and pulsed systems are used. The principle behind a pulsed-ultrasonic technology is that the transmit signal consists of short bursts of ultrasonic energy. After each burst, the electronics looks for a return signal within a small window of time corresponding to the time it takes for the energy to pass through the vessel. Only a signal received during this window will qualify for additional signal processing. Ultrasonic wave sensor is free from water pressure since it measures the time of travel of ultrasonic wave

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Ultrasonic wave transducer system and ultrasonic wave ...

2001-3-15  There is disclosed an ultrasonic transducer system for harmonic imaging, comprising: an ultrasonic transducer comprising a transmitting ultrasonic vibrator for transmitting a fundamental ultrasound having a center frequency f0, and a receiving ultrasonic vibrator for receiving a harmonic signal having a center frequency nf0 (n is an integer of 2 or more); and control means for controlling the ...

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Single-transducer ultrasonic continuous-wave system for ...

2011-10-21  Single-transducer ultrasonic continuous-wave system for transmitting coded sequences Abstract: A major challenge in CW ultrasonic imaging is to handle the electrical crosstalk induced during transmission. Electrical cross talk in terms of transient currents may also impose problems for pulsed wave (PW) systems, e.g. in near field imaging where ...

Get Price

© 2019 JETIR May 2019, Volume 6, Issue 5 Ultrasonic ...

2021-7-23  transmitting ultrasonic sound waves, and transforms the sound reflected into an electrical signal. Ultrasonic waves propagate quicker than visible sound (i.e., sound that can be heard by humans). Ultrasonic sensors have two main components: the transmitter (which uses piezoelectric crystals

Get Price

Development of an ultrasonic wave emission system based

2020-1-3  Figure 19(a) is a screen when transmitting ultrasonic waves at 20.67 kHz, and Fig. 19(b) is a screen when transmitting ultrasonic waves at 39.47 kHz. The setting of the sound wave emission amount can be set by utilizing the sound wave information stored for each crop or

Get Price

Design of Ultrasonic Ranging System for Marking Vehicle

ultrasonic waves are propagated through homogenous media at a relatively stable speed that doesn’t change with the frequency of sound waves, the distance may be measured by multiplying the time cost for receiving echo after transmitting ultrasonic wave by the velocity of sound.

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Two-Frequency Ultrasonic System with Direct Digital ...

2015-7-28  Most ultrasonic systems for air temperature measurement are based on the time-of-flight (TOF) method.(5) In the TOF method, the time required for an ultrasonic wave to travel from a transmitter to a receiver is measured. The speed of sound, c, is evaluated as c = d/T F, where d is the distance between the transmitter and the receiver, and T F ...

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A Computer-Controlled Ultrasound Pulser-Receiver

2016-5-4  performance of a computer-controlled ultrasound pulser-receiver system incorporating a shear mode technique for transskull fluid detection. The presence of fluid in the si-nuses of an ex vivo human skull was examined using a pulse-echo method by transmitting an ultrasound beam through the maxilla bone toward the back wall on the other side

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Fundamentals of Ultrasonic Inspection

2018-9-4  A transmitting transducer (probe or search unit) that can be a single element or an array that emits a beam of ultrasonic waves when bursts of voltage are applied to it A couplant to transfer the input energy in the beam of ultrasonic waves from the transmitting transducer to the testpiece A couplant to transfer the output ultrasonic

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Real Time Wireless Flood Monitoring System Using ...

2020-4-19  waves. An ultrasonic level or sensing system requires no contact with the target. For many processes in the medical, pharmaceutical, military and general industries this is an advantage over inline sensors that may contaminate the liquids inside a vessel or tube or that may be clogged by the product. Both continuous wave and pulsed systems are ...

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A tunable phononic crystal system for elastic ultrasonic ...

2021-6-4  indicating that the ultrasonic guided waves cannot pass through the PC system within the correspondingfrequency region. The martensite state structure with a lower elastic modulus developed a bandgap appearing from 54.12 to 66.51kHz. On the other hand, the bandgap shifted upwards to a higher frequency range from 75.92 to 97.41kHz,

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Ultrasonic wave transducer system and ultrasonic wave ...

2001-3-15  There is disclosed an ultrasonic transducer system for harmonic imaging, comprising: an ultrasonic transducer comprising a transmitting ultrasonic vibrator for transmitting a fundamental ultrasound having a center frequency f0, and a receiving ultrasonic vibrator for receiving a harmonic signal having a center frequency nf0 (n is an integer of 2 or more); and control means for controlling

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A localized sound field reconstruction system by use of ...

2013-10-15  In the present study, a new type developed procedure and a proposed system for the transmitting sound is verified to apply on localized sound field reconstruction by using ultrasonic waves. The purpose of this research is to keep personal privacy of speaking and to enhance the sound quality. According to all the results of experiments, this ...

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© 2019 JETIR May 2019, Volume 6, Issue 5 Ultrasonic ...

2021-7-23  transmitting ultrasonic sound waves, and transforms the sound reflected into an electrical signal. Ultrasonic waves propagate quicker than visible sound (i.e., sound that can be heard by humans). Ultrasonic sensors have two main components: the transmitter (which uses piezoelectric crystals

Get Price

Design of Ultrasonic Ranging System for Marking Vehicle

ultrasonic waves are propagated through homogenous media at a relatively stable speed that doesn’t change with the frequency of sound waves, the distance may be measured by multiplying the time cost for receiving echo after transmitting ultrasonic wave by the velocity of sound.

Get Price

Two-Frequency Ultrasonic System with Direct Digital ...

2015-7-28  Most ultrasonic systems for air temperature measurement are based on the time-of-flight (TOF) method.(5) In the TOF method, the time required for an ultrasonic wave to travel from a transmitter to a receiver is measured. The speed of sound, c, is evaluated as c = d/T F, where d is the distance between the transmitter and the receiver, and T F ...

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A Review of High Frequency Ultrasound Systems

2019-12-31  A. HVCMOS process are higher cost than CMOS Overview of ultrasound systems Fig. 1 shows front-end ultrasound system including array transducers to describe flow diagram of transmitting and receiving ultrasound signals [37, 40, 41]. low frequency signals Fig. 1. Whole front-end ultrasound system.

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Multiple-frequency ultrasonic imaging by transmitting ...

2009-6-17  Purpose The aim of this study was realization of a broadband measurement system that is capable of effectively carrying out a frequency compound method. In the present method, the secondary wave components of difference and sum frequencies are generated along with the higher harmonic components through the nonlinear interaction of two-frequency ultrasound. A multiple-frequency beam

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Semi-automatic system for ultrasonic measurement of

2020-10-13  Semi-automatic system for ultrasonic measurement of texture Abstract A means and method for ultrasonic measurement of texture non-destructively and efficiently. Texture characteristics are derived by transmitting ultrasound energy into the material, measuring the time it takes to

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Real Time Wireless Flood Monitoring System Using ...

2020-4-19  waves. An ultrasonic level or sensing system requires no contact with the target. For many processes in the medical, pharmaceutical, military and general industries this is an advantage over inline sensors that may contaminate the liquids inside a vessel or tube or that may be clogged by the product. Both continuous wave and pulsed systems are ...

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DESIGN AND IMPLEMENTATION OF AN ULTRASONIC

2004-2-10  design and implementation of an ultrasonic position system for multiple vehicle control by donald k. macarthur a thesis presented to the graduate school

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