Determination of an ultrasonic transducer's sensitivity and impedance in a pulse-echo setup

Lopez‐Sanchez, Ana; Schmerr, Lester W.

doi:10.1109/tuffc.2006.150

Cited by 36 publications

(19 citation statements)

References 25 publications

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“…The same transducer can function as both actuator and receiver. The transducer can be configured either in a pulse echo configuration or a through transmission mode [7,[23][24][25]. Fig.1 depicts the two different transducer configurations.…”

Section: Pulse Echo Mechanismmentioning

confidence: 99%

Spice model of a piezo-electric transducer for pulse-echo system

Khan

Taube

Yogeswaran

et al. 2015

2015 11th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)

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Abstract-Pulse-echo system is the most widely used equipment in non-destructive testing (NDT). Herein we present the SPICE implementation of a piezo-electric transducer for pulseecho system. The SPICE model has been developed with an intention to obtain a virtual instrument for the pulse-echo system. The SPICE implementation of pulse-echo system includes the lossless piezoelectric transducer as an actuator and the sensor. The output of actuating stage is fed into the sensing stage of the sensor stage. The simulated results in the actuation and sensing modes are compared to the previously reported experimental results and the output trends are in good agreement. Findings from the comparative study, validate the application of our proposed model as a virtual system for pulse-echo system for non-destructive testing.

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Section: Pulse Echo Mechanismmentioning

confidence: 99%

Spice model of a piezo-electric transducer for pulse-echo system

Khan

Taube

Yogeswaran

et al. 2015

2015 11th Conference on Ph.D. Research in Microelectronics and Electronics (PRIME)

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“…Recently, a new, simplified method to determine both transducer impedance and sensitivity has been developed that allows one to implement Eq. (1) in a more practical manner [4]. We will discuss that new method here shortly.…”

Section: Ultrasonic System Model and The Role Of The Transducersmentioning

confidence: 99%

“…When Dang et al [7] adopted this method to ultrasonic transducers operating at MHz frequencies, they found that it was very important to compensate for cabling effects in the measurements. Recently, Lopez-Sanchez and Schmerr [4] have developed an alternative pulse-echo method that uses only measurements of a single transducer in the setup shown in Fig. 3.…”

Section: Determining Transducer Impedance and Sensitivitymentioning

confidence: 99%

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Complete ultrasonic transducer characterization and its use for models and measurements

2006

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“…However, this method is rather lengthy and delicate to perform, so it is the key obstacle to making the EAM model approach practical to implement in a routine manner. Recently, however, a new, simplified model-based pulse-echo method has been developed to determine experimentally the transducer electrical impedance and sensitivity simultaneously [9]. Combining this new transducer characterization method with measurements and models of all the other elements of an ultrasonic measurement system produces a new and highly effective way to implement the EAM model.…”

Section: Introductionmentioning

confidence: 99%

Simplified Method for Complete Characterization of an Ultrasonic NDE Measurement System

Lopez‐Sanchez

Schmerr

2007

Research in Nondestructive Evaluation

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The electroacoustic measurement model (EAM model) is a model that combines models and measurements for all the electrical and electromechanical components and the acoustic= elastic wave propagation and scattering processes present in an ultrasonic measurement system to predict the measured output voltage. A new approach for implementing the EAM model is described. This approach uses a recently developed model-based pulse-echo method for determining the transducer electrical impedance and sensitivity. This method greatly simplifies the determination of the transducer sensitivity and as a consequence makes the entire EAM model more practical to implement. The experimental protocols needed to implement this simplified EAM model are described, and examples of experimentally determined characteristics of all the different system components are presented. These measured=modeled parameters of the system components are combined to predict the output signal in an ultrasonic immersion measurement system. It is shown that output signals obtained in this fashion agree well with the directly measured signals.

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Determination of an ultrasonic transducer's sensitivity and impedance in a pulse-echo setup

Cited by 36 publications

References 25 publications

Spice model of a piezo-electric transducer for pulse-echo system

Spice model of a piezo-electric transducer for pulse-echo system

Complete ultrasonic transducer characterization and its use for models and measurements

Simplified Method for Complete Characterization of an Ultrasonic NDE Measurement System

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