Differential Pressure Sensing using ICM-20789 for Altitude-hold in Drones

2023-06-28
●PURPOSE: This document explains the process of using differential pressure measurements of two pressure sensors to mitigate the challenge with altitude hold that is subject to ambient pressure changes.
●CONCLUSION: Differential Pressure sensing using an external pressure sensor that is at a static altitude delivers excellent altitude hold performance in harsh environmental pressure changes, commonly experienced indoors. Figure 4 and the video shows the benefits of the differential pressure sensing system.

TDK InvenSense

ICM-20789ICP-101xx

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pressure sensor

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Drones ]medical equipment ]transportation ]aerospace ]nuclear instruments ]undersea equipment ]power plant equipment ]disaster prevention ]crime prevention equipment ]

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Datasheet

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10/04/2017

Revision: 1.1

AN-000119

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