| Autor: |
Thongpance, Nuntachai, Yooto, Thanakorn, Boorasit, Neungluethai |
| Zdroj: |
4th 2011 Biomedical Engineering International Conference; 1/ 1/2011, p178-181, 4p |
| Abstrakt: |
The objective of this research was to design and construct the control expiratory time adjustment display knob for the Bird Mark 7 ventilator. This research has adopted the principle of fluid mechanics and the principle of electronics. The designed and constructed control expiratory time adjustment display knob for the Bird Mark 7 ventilator was composed of 4 main parts: (1) the input part consists of pressure transducer, (2) the signal conditioner part composes of differential amplifier and voltage comparator, (3) the processing part consisting of MCS-51 P89V51RD2 microcontroller with C — language program and (4) the display part includes a liquid crystal display, which shows the duration of one cycle of breathing and the breathing rate. The results of functional testing compare with ventilator calibrator FLUKE VT — 30 found that the error of the average duration of a breathing cycle is equal to 1.36 percent and the average percentage error of the respiratory rate was 2 percent. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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