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介绍了一种新型微型飞行器高度计的研制技术.利用微型数字压力传感器和数字信号处理(DSP)串口通迅,读取数字压力传感器中压力、温度值及补偿参数,用软件进行温度补偿和高度计算.介绍了在2种温度、2种压力下校正传感器的灵敏度、零漂等参数的方法及温度补偿原理.实验室测试表明:该高度计的误差小于±5 m,分辨率为1 m.经飞行试验,证实所研制的高度计具有体积小,重量轻,功耗低,精度高,工作可靠等特点.
This paper introduces the research and development of a new type of altimeter based on micro-aircraft.The pressure, temperature and compensation parameters of the digital pressure sensor are read by using the mini digital pressure sensor and digital signal processing (DSP) serial port communication, and the temperature compensation and height calculation The method of correcting the sensor ’s sensitivity, zero drift and temperature compensation under two kinds of temperature and two kinds of pressure is introduced.The laboratory tests show that the error of the altimeter is less than ± 5 m and the resolution is 1 m. Test, confirmed that the developed altimeter with small size, light weight, low power consumption, high precision, reliable and so on.