1 - 9
Theory of Operation
Hardware Structure
1.4.4.2
NIBP Module
FIGURE 1-8 shows the NIBP module parameter board diagram.
FIGURE 1-8
NIBP Module Principle Diagram
The Accutorr V calculates NIBP values using the oscillometric method of noninvasive blood
pressure measurement. These measurements correspond to comparisons with auscultatory
values, measured using the fifth Korotkoff sound within ANSI/AAMI SP10 standards for
accuracy.
1.4.4.3
Optional Temperature Module
FIGURE 1-9 shows the Temperature module parameter board diagram.
FIGURE 1-9
Optional Temperature Module Principle Diagram
The Temperature Module uses a thermistor as a sensor for measuring temperature. The
resistance of a given thermistor is nonlinearly relative to the temperature. The Temperature
Module measures the resistance of the thermistor and converts it into temperature.
CUFF
PRESSURE
SENSOR
PRESSURE
SENSOR
FOR
PROTECT
PRESSURE
SIGNAL
AMPLIFIER
CIRCUITS
PRESSURE
SIGNAL
AMPLIFIER
CIRCUITS
FOR
PROTECT
CPU
ASYCHRONOUS
SERIAL
COMMUNICATION
WATCHDOG
OVER
PRESSURE
PROTECT
CIRCUIT
A/D
CONVERTER
PRESSURE
SIGNAL
MOTOR CONTROL
FEEDBACK SIGNAL
PUMP AND
VALVE
CONTROL
CIRCUIT
FLASH
DRAM
MANIFOLD
VALVES
AND PUMP
TEMPERATURE
DETECT
CIRCUIT
PROBE
RECOGNIZE
CIRCUIT
A/D
CIRCUIT
PROBE
HEAT
CIRCUIT
CPU SYSTEM
(ROM & RAM
WATCHDOG)
POWER
&
SIGNAL
ISOLATE
CIRCUIT
MAIN
BOARD
Summary of Contents for Rosebud Accutorr V
Page 1: ...USER MANUAL Vital Signs Monitor...
Page 125: ...0070 00 0702 Rev 7 0 October 2015...
