Sleep apnea machine performance requirements for pressure sensor

A good sleep apnea machine needs the support of a variety of testing equipment , for example, pressure sensors, flow sensors, etc. . For patients, sleep apnea machine comfort and convenience are the most important performance requirements of hair and is not critical , because they are usually used in conjunction with a humidifier , they need to operate under conditions of high humidity and is stable performance. CPAP user requirements focused on accuracy, stability , portability, and cell size / weight, in addition to noise requirements are very important , because this device is in the sleep process. Requires the use of a low pressure drop flow sensor , because the pressure drop is too high, the greater the intensity of the electrical work , thereby increasing the noise and shorten motor life. Therefore engineer should choose to run at low speed to sense differential airflow or pressure sensor.  Crankshaft Positioning Sensor  should be capable of measuring the peak of a patient's breathing , or turning point between the inhale and exhale . For more complex sleep apnea machine , sometimes choose Auto Temperature Sensor instead of pressure sensors, because the ventilator needs to be more sensitive to low flow levels . Once the pressure , airflow, and the media needs to consider the sensor in relation to the accuracy and stability requirements , including the total error band . Home sleep apnea machine must be durable because of external factors will affect unit performance. For price considerations , usually choose enhanced digital pressure sensor. With the purchase of Engine Coolant Temperature Sensor has been enlarged compared to later add components to adjust the size of the signal will be more expensive. Meanwhile, if to do so , for the integration of the time will be shorter , which allows designers to quickly realize the sensor and the final device to market faster . According to the different types of sleep apnea machine , mechanical requirements for equipment design may also be some impact , because users always want to get smaller , beautiful and portable products, and calibration function may also need to take into account , in particular, for CPAP ( continuous positive airway pressure ) applications , to maximize product performance to best match the patient's breathing pattern .