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Electronic altimeter sensor.
It works by actually measuring the strain in a very thin fi lm of metal that has a static reference pressure on one side and the changing ambient pressure on the other.
The mpl3115a2 has a typical 1 5 pascal resolution which can resolve altitude at 0 3 meters compare to the bmp180 which can do 0 17m.
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One of the most essential sensor class of a quadcopter is miniature barometers which provide the vehicle s altitude information to be.
The thommen ad30 electronic altimeter can be configured for different applications and displays altitude in feet or meters all without altering the system architecture.
This fi rst article will cover what allows an altimeter to tell you how high the rocket has fl own.
The measurement of altitude is called altimetry which is related to the term bathymetry the measurement of depth under water the most common unit for altimeter calibration worldwide is hectopascals hpa except for north america and japan where inches of mercury inhg are used.
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The ad30 is also available with square front bezel and 3ati case in black or grey color.
It is optimized for altimeters and variometers with an altitude resolution of 20 cm.
It will give extremely accurate altitude pressure and temperature readings.
The module includes a high linearity barometric pressure sensor and a high resolution temperature output allowing implementation of an altimeter thermometer without any additional sensors.
The sensor module includes a high linearity pressure sensor and an ultra low power 24 bit adc with internal factory calibrated coefficients.
Altimeter block diagram figure 3.
Building on the success of the original accustar the accustar ea takes low cost tilt sensing to the next level by combining 100 solid state technology with digital calibration and proprietary filtering techniques.
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An altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level.
Electronic barometric altimeter in real time correction.
This pressure sensor from freescale is a great low cost sensing solution for precision measurement of barometric pressure and altitude.
