Piezoelectric Micro-machined Ultrasonic Transducers (pMUTS)

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Piezo electric Micro-machined Ultrasonic Transducers (pMUTS) consists of a thin PZT diaphragm typically formed on silicon substrates and are used in a wide range of sensing applications. Unlike cMUTS – no high voltage biasing is required for operation. PZFlex allows a variety of outputs to be generated from a single run and directly correlated with experimental results. Resources pMUTs Presentation

2D SAW Devices

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Like many MEMs devices, SAWs are fully electromechanically coupled devices which are often acoustically large. This can complicate the simulations which leads to a long and expensive design process. PZFlex is specifically designed for large ultrasonic problems and with its highly efficient solvers, is suited for SAW device simulations. The example device structure: Device Material: Aluminium Nitride Device Thickness: 40 …

Tonpilz Transducer Simulations

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Tonpilz devices are able to achieve a combination of low frequency and high sensitivity in a compact footprint which makes them ideal as projectors for sonar applications. PZFlex can accept models from CAD as well as generating models from simple wizards which makes modeling a single or a multi stack array very straight-forward. With our ability to run multi-million element …

3D phononic crystal model

Phononic Crystals

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Phononic crystals are synthetic materials that are formed by periodic variation of the acoustic properties of the material (i.e., elasticity and mass). One of the main properties of the phononic crystals is the possibility of having a phononic bandgap. A phononic crystal with phononic bandgap prevents phonons of selected ranges of frequencies from being transmitted through the material. A key …

Aluminium Honeycomb Composite Structure

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Summary of the Aluminium Honeycomb Simulation The video shows a pressure load applied to the top Carbon Fibre Reinforced Polymer (CFRP) skin layer on a curved aluminium honeycomb structure. The plot of velocity magnitude (z-component) allows us to visualize the propagation of the wave through a non-defective component. The microstructure of composite structures significantly increases the complexity of simulating wave …

High Intensity Focused Ultrasound (HIFU) Using Tissue Maps

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Summary of the PZFlex HIFU Simulation The video demonstrates the acoustic solve for a High Intensity Focussed Ultrasound (HIFU) simulation. We generate the model from an imported tissue map of a human abdomen from the Visible Human Project. Calculating the thermal dose delivered by therapeutic treatments is dependent on many factors, and can be a complex process. PZFlex combines piezoelectric, acoustic, …

Design of a Class IV Flextensional Transducer

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Summary of the PZFlex Flextensional Transmitter Simulation The simulation analyzes the design of a Class IV Flextensional transmitter using titanium caps to maximize surface displacement. The most popular deployments of flextensional transducers include low ultrasonic frequencies applications from sonar to surgical actuation. Flextensional devices are compact and achieve high vibration amplitudes for a relatively low piezoceramic volume making them ideal …

Time of Flight Diffraction (TOFD) of an Anisotropic Weld

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Summary of the PZFlex TOFD Simulation This example shows a typical Time of Flight Diffraction (TOFD) inspection of an anisotropic weld. TOFD is a flexible technique, which relies on a range of mode converted signals to be effective. PZFlex combines the capability of accurately simulating mode conversion in arbitrary geometries, with the speed to run large batches of TOFD models, …

Defect Detection using Flash Thermography

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Summary of the PZFlex Simulation using Flash Thermography The simulation using Flash Thermography demonstrates the application of a heat flux to the surface of the steel plate. The simulation replicates the thermographic inspection techniques of using heat to analyze components. Thermography is a powerful technique in NDE for rapid identification of defects in a range of materials and applications. Specifically, in …

2D Piezocomposite Array Measuring Crosstalk and Evaluating Surface Dilation Quality

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Summary of the PZFlex Simulation This example created with PZFlex shows the modal displacement of a 7×7 element 1-3 piezocomposite phased array. This analysis is ideal for measuring crosstalk, and evaluating surface dilation quality. Below are several of the possible applications of this example: Medical imaging HIFU Sonar NDE Fingerprint sensing Technical details of the PZFlex simulation We centered the device …