If the temperature is below setpoint, the output will be on longer; if the temperature is too high, the output will be off longer. The third controller type provides proportional with integral and derivative control, or PID.
Amplifier figures of merit. In electronics, the figures of merit of an amplifier are numerical measures that characterize its properties and performance. Figures of merit can be given as a list of specifications that include properties such as gain, bandwidth, noise and linearity, among others listed in this article. Figures of merit are important for determining the suitability of a particular amplifier for an intended use.
One way to look at NRC ratings is to see them as a percentage of sound that comes in contact with a sound absorption material and are not reflected back into the room. For example, a Noise Reduction Coefficient of .7 would indicate that 70% of sound waves are absorbed by the material.ne way to look at NRC ratings is to see them as a percentage of sound that comes in contact with a sound absorption material and are not reflected back into the room. For example, a Noise Reduction Coefficient of .7 would indicate that 70% of sound waves are absorbed by the material.