how does a portable digital blood pressure monitor works.l need to know the electronics operation?
please l need information about digital components found on a blood pressure monitor
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.
Digital Blood Pressure Monitor.wmv
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LifeSource UA-787V Digital Blood Pressure Monitor $69.95 The LifeSource UA-787V Quick Response Digital Blood Pressure Monitor with Easy Cuff is voted the BEST overall blood pressure monitor by the Wall Street Journal. With Irregular Heartbeat Feature, The Quick Response with EasyCuff Feature, memory, more. |
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Wrist Digital Blood Pressure Monitor $26.99 Monitor your blood pressure away from home with this convenient blood pressure monitor. This compact digital monitor slips over your wrist like a watch.Monitor your blood pressure away from homeCompact digital monitor slips over your wrist like a watchEasy to read digital LCD displayUser friendly ergonomic designHigh accuracyEasy to wrap wrist cuffCompact design, lightweight, portable and travels almost anywhereEasy and simple operationLow Battery and Error indicatorsReliable oscillometric technologyRecall function (30 sets memory data storage)Display type: Digital form LCD Range: 30 to 280 mm Hg (Pressure), 40-195 beats/min (pulse rate) Accuracy: 3 mm Hg (Pressure), 5-percent (pulse rate) Inflation: Intelligent automatic inflation via pump Power supply: Two (2) AAA batteries Auto power off: 1 minute after last key operation Irregular heart beating (IHB) sign |
