Elevator test unit

27 Aug 2017

one diy test unit I want to build is a g-force accelerometer tested for elevators. Prefer a Bluetooth enabled box you put inside an elevator that when it is sent up it will record the travel speed, acceleration, start and stoppong force. It bit I had issues figuring out was vertical speed.

Anyway. I am a loooong way off but maybe one day

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beacon_dave over 8 years ago in reply to jw0752 +4

How about a barometric pressure sensor being used as an altimeter. Difference in altitude over time would give you the average velocity for that period. It may only be accurate enough for taller buildings…
beacon_dave over 8 years ago in reply to dougw +3

...and then these guys at thyssenkrupp Elevator come along and ruin your day... https://multi.thyssenkrupp-elevator.com/en/ An Elevator That Actually Goes Sideways https://www.youtube.com/watch?v=kdTs…
jw0752 over 8 years ago in reply to balearicdynamics +2

Hi Enrico, As long as the elevator itself isn't air tight the barometric pressure measurement should work well indoors. It is in fact just a measurement of the force (weight) of a column of air. Even if…

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jw0752 over 8 years ago

Another aspect of elevators that might be problematic is that they usually take a couple seconds to settle or completely stop as they reach their destinations. Due to the low velocity and deceleration at these points the time becomes the dominate parameter and will likely throw off calculations of distance and velocity.

John
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jw0752 over 8 years ago

Another aspect of elevators that might be problematic is that they usually take a couple seconds to settle or completely stop as they reach their destinations. Due to the low velocity and deceleration at these points the time becomes the dominate parameter and will likely throw off calculations of distance and velocity.

John
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