CONSTRUCTION OF
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on it to display the answer.
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| Where is the matching layer located? | show 🗑
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| What is the purpose of the matching layer? | show 🗑
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| show | Matching material, transducer element, backing material
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| show | less
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| WIthout a matching layer, what percentage of sound would be transmitted to the patient? | show 🗑
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| show | It decreases.
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| show | It shortens the pulse.
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| To increase the range of frequencies found within the beam, you would increase or decrease damping? | show 🗑
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| show | Mechanical heads have motors; electronic has no moving parts
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| Mechanical scan heads have what type of focus? | show 🗑
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| Mechanical scan heads have what type of frequency | show 🗑
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| How do you change the focus on a mechanical head? | show 🗑
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| To change the frequency on a mechanical head.... | show 🗑
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| show | Multiple elements
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| show | improves the resolution
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| show | Linear Array transducer
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| In a linear array transducer, how is the beam steered? | show 🗑
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| In what transducers are crystals fired in groups of elements? | show 🗑
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| show | Linear Sequential Array
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| What shape does a linear sequential array produce? | show 🗑
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| Produces a curvilinear image; fires in groups of elements; does NOT have a common point of origin | show 🗑
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| show | Curved sequential array
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| show | Curved sequential array
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| show | Phased array transducer
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| show | phased array
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| Electronic focusing and steering in a linear phased array. | show 🗑
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| show | The sonographer
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| Changing the timing difference between elements | show 🗑
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| Phasing steers the scan lines to produce a ________image. | show 🗑
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| show | phased array
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| Arrays with no common point of origin | show 🗑
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| what shaped does a vector array have? | show 🗑
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| show | Electronic beam steering
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| show | Electronic beam steering
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| show | focused
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| show | The presence of a curvature of the pulsing
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| show | Annular array
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| What transducer has concentric circular elements cut from one slab of PZT? | show 🗑
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| show | Annular array
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| show | Annular array
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| What transducer has excellent lateral resolution? | show 🗑
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| Which transducer uses multiple circular elements? | show 🗑
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| show | All of the following do: Linear sequential, curvilinear, phased array and annular array
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| show | Linear sequential, curvilinear sequntial, and Phased array.
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| show | stronger. There is less transmission
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| show | 20%
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| show | 1. The speed of sound in the PZT
2. The thickness of the element.
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| What is another name for a fixed focal depth in mechanical transducers? | show 🗑
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| show | internal focusing - use of a curved active element or external focusing with the use of an acoustic lens.
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| Focusing occurss in what plane/planes? | show 🗑
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| show | One piece of PZT cut into a collection of separate pieces called elements.
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| show | Channel
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| What are the types of array transducers? | show 🗑
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| What is the arrangement of a linear array transducer? | show 🗑
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| show | Elements are arranged as circular rings with a common center.
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| What is the arrangement of a convex Array transducer? | show 🗑
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| Phased array always means... | show 🗑
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| WHEN A SPIKE LINE IS STRAIGHT, IN A LINEAR PHASED TRANSDUCER....WHAT HAPPENS TO THE FOCUS? | show 🗑
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| show | The beam former.
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| show | Curved pattern
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Created by:
jxw039