[AR] Re: LRE Test Stand Data Acquisition and Control Best Practices

  • From: Henry Vanderbilt <hvanderbilt@xxxxxxxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Wed, 11 Jan 2017 10:53:53 -0700

One other thought: When in doubt, go for more bandwidth. Massive data storage is cheap, and when things go wrong in a rocket engine test, they often go wrong FAST.

Sampling a channel at 100 hz can be fine when things are going right, yet totally miss key impulse characteristics and timing relationships when things go wrong. *After* the system goes "bang!" is a really expensive time to realize that cheap faster sampling would have helped you figure out what happened.

On 1/11/2017 8:52 AM, Edward Wranosky wrote:

​Something else that I realized early is that start recording data on
all your channels well before you intend to test.  That way if you have
an anomaly ​you have some data to go on.

Edward


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