|
| If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|||||||
|
|
Thread Tools | Display Modes |
|
#7
March 7th 05, 03:07 AM
|
|||
|
|||
RST Engineering wrote:
snip As an extra bonus question, my sensor is going to be an old phonograph cartridge. Should I use the lightest weight "needle" that I can find? How about a tiny little ball of lead at the tip of that needle? Would that help the sensor? Or hinder it? A lot depends on the range of frequencies, any sensor will have its own fundamental frequency- multiple sensors may be a good idea. Geophones seem to be good up to a few hundred Hz, cheap but difficult to get qty one. For the application a speaker may be the clue (as a second sensor). -- regards jc LEGAL - I don't believe what I wrote and neither should you. Sobriety and/or sanity of the author is not guaranteed EMAIL - and are not valid email addresses. news2x at perentie is valid for a while. 
|
| Thread Tools | |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Wierd vibration -- Prop or engine, balance or not??? | Chuck | Owning | 17 | December 1st 04 03:12 PM |
| Pinging Ron Wanttaja - "Unporting?" | Bob Chilcoat | Home Built | 13 | November 24th 04 08:28 PM |
| Vibration Testing | Jim Weir | Home Built | 20 | October 10th 04 08:22 AM |
| Vibration Testing | Jim Weir | Owning | 21 | October 10th 04 08:22 AM |
| Survey - 3 blade prop conversion- Cockpit vibration, happy or not | Fly | Owning | 20 | June 30th 04 06:32 PM |
Threaded Mode