Template:Determining test time for available units: Difference between revisions
(Created page with '====Determining Test Time for Available Units==== The way that one determines the test time for the available number of test units is quite similar to the process described previ…') |
|||
| Line 1: | Line 1: | ||
'''Determining Test Time for Available Units''' | |||
The way that one determines the test time for the available number of test units is quite similar to the process described previously. In this case, one knows beforehand the number of units, <math>n</math> , the number of allowable failures, <math>f</math> , and the confidence level, <math>CL</math> . With this information, the next step involves solving Eqn. (relcum) for <math>{{R}_{TEST}}</math> . With this value known, one can use the appropriate reliability equation to back out the value of <math>{{t}_{TEST}}</math> , since <math>{{R}_{TEST}}=g({{t}_{TEST}};\theta ,\phi )</math> , and <math>{{R}_{TEST}}</math> , <math>\theta </math> and <math>\phi </math> have already been calculated or specified. | The way that one determines the test time for the available number of test units is quite similar to the process described previously. In this case, one knows beforehand the number of units, <math>n</math> , the number of allowable failures, <math>f</math> , and the confidence level, <math>CL</math> . With this information, the next step involves solving Eqn. (relcum) for <math>{{R}_{TEST}}</math> . With this value known, one can use the appropriate reliability equation to back out the value of <math>{{t}_{TEST}}</math> , since <math>{{R}_{TEST}}=g({{t}_{TEST}};\theta ,\phi )</math> , and <math>{{R}_{TEST}}</math> , <math>\theta </math> and <math>\phi </math> have already been calculated or specified. | ||
Revision as of 22:59, 22 February 2012
Determining Test Time for Available Units
The way that one determines the test time for the available number of test units is quite similar to the process described previously. In this case, one knows beforehand the number of units, [math]\displaystyle{ n }[/math] , the number of allowable failures, [math]\displaystyle{ f }[/math] , and the confidence level, [math]\displaystyle{ CL }[/math] . With this information, the next step involves solving Eqn. (relcum) for [math]\displaystyle{ {{R}_{TEST}} }[/math] . With this value known, one can use the appropriate reliability equation to back out the value of [math]\displaystyle{ {{t}_{TEST}} }[/math] , since [math]\displaystyle{ {{R}_{TEST}}=g({{t}_{TEST}};\theta ,\phi ) }[/math] , and [math]\displaystyle{ {{R}_{TEST}} }[/math] , [math]\displaystyle{ \theta }[/math] and [math]\displaystyle{ \phi }[/math] have already been calculated or specified.