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Engineering, 04.10.2019 19:10 Rattley6223

Design: pulmonary hypertension alarm an anesthesia monitoring system is measuring the pressure output from a swan-ganz pulmonary artery catheter to evaluate pulmonary hypertension intraoperatively. since the anesthesiologist is also monitoring several other physiologic systems concurrently (e. g., ecg, eeg, respiratory rate, blood pressure, the pressure monitor sounds an alarm when the pressure goes too high or too low. the pressure output of the catheter, ranging from 0 - 100 mm hg, is linearly mapped to voltage through its transduction mechanism to be 0 - 10 v. design a circuit using a comparator that will sound the alarm when the pressure rises above 25 mmhg. assume that the pressure catheter signal has a noise component of ± 0.1 mmhg; your comparator should have a hysteresis range that is twice this noise limit. let your input signal to the circuit from the pressure catheter be represented as vin. use dc power sources as needed in your circuit design, and specify the rail voltage(s) for the op-amp(s). the alarm can be considered a "black box" load that can be activated with a voltage greater than 5 v (vo > 5 v).

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