Control and noise factors Don clausing Red border: emphasized slides C Don Clausing 1998 人 16881 Fig. 1
Control and noise factors Don Clausing Red border: emphasized slides © Don Clausing 1998 16.881 Fig. 1
The engineered system N olse Signal System Response Control factors C Don Clausing 1998 人 16881 Fig 2
The engineered system Noise Signal System Response Control factors © Don Clausing 1998 16.881 Fig. 2
Ideal response Want Ideal Response to Signal -usually straight-line function Actual response is determined by values of control factors and noise factors If noise factors are suppressed early, the en difficult problems only appear late Introduce noises early C Don Clausing 1998 人 16881 Fig 3
Ideal response • Want Ideal Response to Signal – usually straight-line function • Actual response is determined by values of control factors and noise factors • If noise factors are suppressed early, then difficult problems only appear late • Introduce noises early! © Don Clausing 1998 16.881 Fig. 3
Actual response Ideal response 00.0u2 Effect of noises 1 SIGNAL M2 C Don Clausing 1998 人 16881 Fig 4
Actual response Ideal response Effect of noises RESPONSE M1 SIGNAL M2 © Don Clausing 1998 16.881 Fig. 4
R esponse depends on Value of signal factor Values of control factors Engineers can select values Examples: dimensions. electrical characteristics Values of noise factors Engineers cannot select values Examples: temperature, part variations C Don Clausing 1998 人 16881 Fig 5
Response depends on: • Value of signal factor • Values of control factors – Engineers can select values – Examples: dimensions, electrical characteristics • Values of noise factors – Engineers cannot select values – Examples: temperature, part variations © Don Clausing 1998 16.881 Fig. 5