Results 31 to 40 of about 799 (161)
A Study on Capacitive Micromachined Ultrasonic Transducer Periodic Sparse Array
Micromachines, 2021 Capacitive micromachined ultrasonic transducer (CMUT) is an ultrasonic transducer based on the microelectromechanical system (MEMS). CMUT elements are easily made into a high-density array, which will increase the hardware complexity.
Tian Zhang +6 more
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Modelling of CMUTs with anisotropic plates [PDF]
2012 IEEE International Ultrasonics Symposium, 2012 Traditionally, CMUTs are modelled using the isotropic plate equation and this leads to deviations between analytical calculations and FEM simulations. In this paper, the deflection profile and material parameters are calculated using the anisotropic plate equation.
la Cour, Mette Funding +3 more
openaire +2 more sources
Use of Supporting Post Width to Increase the CMUT’s Resonant Frequency
IEEE Access, 2022 A new method is proposed to increase the resonant frequency of a Capacitive Micromachined Ultrasonic Transducer (CMUT) device while keeping the radii unchanged for devices fabricated by sacrificial release (SR) method.
Jiujiang Wang +8 more
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3D cone-beam breast ultrasonic tomography imaging for capacitive micromachined ultrasonic transducer cylindrical array [PDF]
JASA Express Letters, 2021 In this paper, a 3D cone-beam ultrasonic transmission tomography method for capacitive micromachined ultrasonic transducer (CMUT) cylindrical phased array was proposed.
Yu Pei +6 more
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Rayleigh–bloch waves in CMUT arrays [PDF]
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2014 Using the small-signal electrical equivalent circuit of a capacitive micromachined ultrasonic transducer (CMUT) cell, along with the self and mutual radiation impedances of such cells, we present a computationally efficient method to predict the frequency response of a large CMUT element or array.
Atalar, A., Köymen H., Oğuz H.
openaire +4 more sources
Applications of Modelling and Simulation, 2022 In this paper, Finite Element Method (FEM)-based design and simulation of circular capacitive micromachined ultrasonic transducer (CMUT) has been discussed. The FEM simulation of CMUT is accomplished by using MEMCAD tools CoventorWare® and COMSOLTM. The
Gurpreet Singh Gill +3 more
doaj
Two Capacitive Micro-Machined Ultrasonic Transducers for Wind Speed Measurement
Sensors, 2016 This paper presents a new wind speed measurement method using a single capacitive micro-machined ultrasonic transducer (CMUT). The CMUT was arranged perpendicular to the direction of the wind flow, and a reflector was set up a short distance away, facing
Gia Thinh Bui +2 more
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Design of an Integrated Micro-Viscometer for Monitoring Engine Oil
Sensors, 2022 This paper proposes a novel integrated micro-viscometer for engine-oil monitoring. The final solution consists of a capacitive micromachined ultrasonic transducer (CMUT) and an application-specific integrated circuit (ASIC).
Roufaida Bensalem +7 more
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Micromachines, 2021 Analytical modeling of capacitive micromachined ultrasonic transducer (CMUT) is one of the commonly used modeling methods and has the advantages of intuitive understanding of the physics of CMUTs and convergent when modeling of collapse mode CMUT.
JiuJiang Wang +8 more
doaj +1 more source
Micromachines, 2019 This paper describes the design of a front-end receiver amplifier for capacitive micromachined ultrasonic transducer (CMUT). The proposed operational amplifier (op amp) consists of a full differential folded-cascode amplifier stage followed by a class AB
Yiheng Du +4 more
doaj +1 more source