Thanks Derek,
but as I wrote, it is unlikely the object would reach full freefall. It might run away, but there would be some friction, so it would never reach a full free fall situation.
Do you think I could detect for example travel at twice expected speed?
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--- In Electronics_101@..., Derek Koonce <derek@...> wrote:
To know when an object is in free fall, the acceleration is 0. Thus it
is easy to measure, so long as you know what is up. I have used a 3-axis
accelerometer without any issues. Quite easy. Look at Kionix products. I
have this in a project right now.
Derek Koonce
DDK Interactive Consulting Services
On 1/22/2011 1:24 PM, Michael wrote:
Hello All,
I have been doing some reading, re using an accelerometer to measure
velocity. I want to detect when an object is travelling too fast. It
is an up/down or vertical movement, and maximum travel is only about
2m. Essentially I want to detect when object is falling, but it might
not be in total freefall. The winch might fail, but there would still
be some slowing friction.
Has anyone used an acceleromter for this type of application, can it
work, what accuracies are needed, etc, etc?
Any advice would be much appreciated,
Mike.
