This is a highly important result because we have reduced the relationship between X0 and Ei to one that involves only Kf.
The sensitivity of the gain constants Ka, Km and Ks to the environmental inputs Da, Dm and Ds has thereby been rendered irrelevant, and we only have to be concerned with one environmental input Df.
Conveniently, it is usually easy to design a feedback device that is insensitive to environmental inputs: this is much easier than trying to make a motor or spring insensitive.
Thus, high-gain feedback techniques are often a very effective way of reducing a measurement system’s sensitivity to environmental inputs.
However, one potential problem that must be mentioned is that there is a possibility that high-gain feedback will cause instability in the system.
Therefore, any application of this method must include careful stability analysis of the system.
This is a highly important result because we have reduced the relationship between X0 and Ei to one that involves only Kf.
The sensitivity of the gain constants Ka, Km and Ks to the environmental inputs Da, Dm and Ds has thereby been rendered irrelevant, and we only have to be concerned with one environmental input Df.
Conveniently, it is usually easy to design a feedback device that is insensitive to environmental inputs: this is much easier than trying to make a motor or spring insensitive.
Thus, high-gain feedback techniques are often a very effective way of reducing a measurement system’s sensitivity to environmental inputs.
However, one potential problem that must be mentioned is that there is a possibility that high-gain feedback will cause instability in the system.
Therefore, any application of this method must include careful stability analysis of the system.
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