please l need information about digital components found on a blood pressure monitor
2007-04-29 16:22:07 · 3 answers · asked by e_bhebe 1 in Computers & Internet ➔ Hardware ➔ Monitors
An automatic blood pressure monitor having a blood pressure cuff, an air pump applying pressurized air to the cuff, an air valve selectively venting the cuff, and a pressure transducer generating an output signal having a D.C. component indicative of the steady-state pressure in the cuff, and an A.C. component indicative of oscillometric pulses. The pressure transducer output is amplified and applied to an analog-to-digital converter which generates a digital word indicative of the steady-state cuff pressure. The amplified pressure transducer output is also applied to one input of a differential amplifier having an output that is applied to an analog-to-digital converter having a limited operating range. The other input of the amplifier receives an offset signal from a voltage source to offset the amplified pressure transducer output so that the output of the differential amplifier will not exceed the operating range of the analog-to-digital converter.
2007-04-29 18:47:30 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Mechanically you have a cuff, a pump, and a pressure sensor. The cuff inflates until the sensor no longer detects pressure changes from the pulse and then starts to deflate slowly. When the pulse is re-detected the pressure is read as the systolic reading. The pressure continues to drop, reading the pulse rate until the cuff fails to respond to the pulse again. This is the Diastolic pressure.
2007-04-30 04:12:46 · answer #2 · answered by The original Peter G 7 · 0⤊ 0⤋
www.howstuffworks.com
2007-04-29 23:37:23 · answer #3 · answered by Anonymous · 0⤊ 0⤋