. Biophysical science. Biophysics. (a). (b) Heat Loss to Outside Room \ Dial Setting (Reference)^ Temperature J Thermosrar ^ \ -g<S^— - n:i Furr IULC ^ (c) Figure 3. (a) General scheme of negative feedback control loop (servomechanism). Large cross-hatched arrows indicate variable elements, (b) Block diagram of negative feedback loop to keep amplifier output constant. Such amplifiers can be used to present subjects with speech of constant (average) sound pressure level, (c) Negative feedback control loop used to regulate room temperature. In practice, an additional loop is used to keep furn


. Biophysical science. Biophysics. (a). (b) Heat Loss to Outside Room \ Dial Setting (Reference)^ Temperature J Thermosrar ^ \ -g<S^— - n:i Furr IULC ^ (c) Figure 3. (a) General scheme of negative feedback control loop (servomechanism). Large cross-hatched arrows indicate variable elements, (b) Block diagram of negative feedback loop to keep amplifier output constant. Such amplifiers can be used to present subjects with speech of constant (average) sound pressure level, (c) Negative feedback control loop used to regulate room temperature. In practice, an additional loop is used to keep furnace below some set temperature. thermistor bridge circuit, it is possible to obtain a voltage proportional to the error in temperature from the 68°F at which the system is Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ackerman, Eugene, 1920-. Englewood Cliffs, N. J. , Prentice-Hall


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