4 Theory of Operation
43
Transducer Hardware Overview
Transducer Types
All transducers that can connect to the fetal sensor sockets can be used.
Functional Description of the Transducer CPU
The CPU section of the transducers is made up of the following main functional blocks:
•
CPU (micro controller)
•
Analog-to-Digital Converter
•
Communication Transceiver (CAN bus driver)
•
EEPROM
CPU (Micro Controller)
A single-chip processor is used to control the transducer, generate the front-end control signals,
control the analog-to-digital signal conversion, and to perform the signal processing.
Analog-to-Digital Converter
Analog-to-digital (A/D) signal conversion is carried out by the 16-bit AD converter. Digital signals are
directly communicated from the A/D converter to the CPU.
Summary of Contents for Avalon FM20
Page 2: ......
Page 6: ...6 ...
Page 38: ...3 Installation Instructions 38 ...
Page 46: ...4 Theory of Operation 46 ...
Page 155: ...10 Repair and Disassembly 155 11 Put the two halves of the display assembly together as shown ...
Page 167: ...10 Repair and Disassembly 167 10 Remove the four screws holding the recorder chassis ...
Page 169: ...10 Repair and Disassembly 169 12 Remove the RFI bracket 13 Lift out the recorder chassis ...
Page 254: ...12 Specifications 254 ...
Page 259: ......
Page 260: ...Part Number 453564541271 Published in Germany 11 14 453564541271 ...