Re: [PSUBS-MAILIST] Isn't 'Mini book review.' anymore--pressure t est

[AndrePevestorf@aol.com]

In einer eMail vom 13.04.2002 02:00:07 (MEZ) - Mitteleurop. Sommerze schreibt machine@epix.net:


> When your plot starts ot go nonlinear, your at the end of the elastic limit.  No computer necessary.  Reading fluid rather than air, you got an exact easy reading. Dan H. 


You are right Dan. For a test in a chamber this is the easy way. 
But I was thought about to use this method together with a deep sink test outdoor in the sea ... 
and then you will not be secured from thermoclines (as Alec mentioned) and itīs not easy to control a equal sink if the sub is on a roop and there is some rough sea .. (OK, you will wait for calm to to that test..) 

A computer is not absolutely necessary to track the curves but sitting all the days in front of a screen makes a little bit lazy and if the computer can make the job... he should do it... 
even if you get the signals from the sensors as a appropriate current between 4...20 mA (as it is usual for pressure indicators)

A.