Design of the Digital Pressure Meter with Thermohygrometer

Andjar Pudji, M.Ridha Mak,ruf


Sphygmomanometer is one of the most widely used medical devices for patient diagnosis. This device_ is used to measure the patient's blood pressure non invasive. To maintain the accuracy of the measurement results Sphygmomanometer required calibration periodically. Calibration is an activity to determine the truth of a measuring instrument or measuring material. Tool for calibration tensirneter is Digital Pressure Meter (DPM).Thermohygrometer is a tool that combines the function of thermometer with hygrometer. In general we are more familiar with the thermometer and hygrometer, because its function as a temperature gauge is often used in everyday life. While hygrometer relatively rarely heard for the layman because it is only useful for measuring the air humidity both inside and outside the room.This thermohygrometer tool can be used to measure the temperature of air and humidity both in the room and also outsidethe room. In the calibration Sphygmomanometer must be considered the temperature and humidity of the room because it can affect the measure of pressure on the Sphygmomanometer.In this study the researchers designed the Sphygmomanometer Calibrator Tool equipped with thermohygrometer. Based on the measurement and comparison of data made 10 times error rate of 0.2% on the measurement rises, and meesuremeat of room temperature and 0.2% on the humidity measurement.

Keywords: Calibration sphygmomanometer, Thermohygrometer

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ISSN (Paper)2224-5782 ISSN (Online)2225-0506
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