
Testing Transducers
7 Troubleshooting
73
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The ultrasound transducer contains seven piezoelectric crystals. Basic functioning of each can be verified
by holding a flat bottomed pencil or similar above each crystal and moving it up and down as shown.
Figure 4 Testing an Ultrasound Transducer Using a Pencil
A sound should be heard for each crystal tested. The pencil should be held two to three centimeters from
the transducer surface when the test is carried out.
Figure 5 Position of Crystals in an Ultrasound Transducer
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A sound should also be heard when the transducer is moved back and forth over a solid surface, or the
hand as shown below.
Figure 6 Checking an Ultrasound Transducer
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Crystals
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To Purchase, Visit
Содержание Avalon CTS M2720A
Страница 2: ...ii ...
Страница 22: ...1 General Information Antenna System Guidelines 16 To Purchase Visit Avobus com or call 1 800 674 3655 ...
Страница 28: ...2 Theory of Operation ECG Frontend Hardware 22 To Purchase Visit Avobus com or call 1 800 674 3655 ...
Страница 32: ...3 System Interfaces Compatible Fetal Monitors 26 ...
Страница 52: ...5 Spare Parts Antenna and Base Station Part Numbers 46 To Purchase Visit Avobus com or call 1 800 674 3655 ...
Страница 66: ...6 Preventive Maintenance and Safety Battery Exchange 60 ...
Страница 92: ...9 Upgrades 86 ...
Страница 102: ...10 Specifications Essential Performance 96 ...
Страница 104: ...A Removing and Replacing the Transducer Battery 98 Wipe off excess silicone grease ...
Страница 106: ...B Removing and Replacing the Transducer Belt Button 100 To Purchase Visit Avobus com or call 1 800 674 3655 ...
Страница 108: ...C Avalon CTS Frequency Table 102 ...