Can singel axis NVH convert to 4 axis NVH

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Can singel axis NVH convert to 4 axis NVH

Postby eric989 » Thu Apr 21, 2016 8:45 am

For the singel axis NVH (PP858) users, Can they just buy a 3 axis NVH(PP986) to combine with the PP858, then they can have a 4 axis kit?

Thank you.
Eric Chen
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Re: Can single axis NVH convert to 4 axis NVH

Postby PicoChris » Wed Apr 27, 2016 9:33 am

Eric

This will work but it would not be quite the same as a 4 axis kit. The difference is that the Interface box for the single output kit (part no TA148) combines the vibrations from all 3 directions into a single output rather than presenting them separately. With the 4 axis kit you get 2 separate 3 axis output interfaces so your "4th axis" can be selected to match the specific vibration orientation your have detected with the 3 axis transducer. Using the TA148 you will only be able to look at the combined vibration so in some circumstances it may be hard to pick out the specific vibration you are investigating.

On the other hand for most situations it should cause you any major issues but it is important to understand the differences between the 2 setups. As long as you remember the differences between the two accelerometers you should have no problems.

Cheers

Chris Lowe
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Re: Can singel axis NVH convert to 4 axis NVH

Postby eric989 » Thu Apr 28, 2016 1:11 am

Hi Chris,

Understood it. It's better to have 2 separate 3 axis output interfaces for "4 axis kit". Thank you for the detailed reply.

Eric
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