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.
Sales volume variance. is a subset of the static budget variance and is the difference between the flexible budget revenues and cost and the static budget revenues and costs. Because simply the level of production can explain this variance, this variance is not very useful in controlling operations.y holding AQ constant, the difference is due to the difference between the actual price paid for DM and DL and the budgeted or standard amount expected for DM and DL. Investigation of what causes these variances is used to control operations. The price variance for DM can be determined when the materials are purchased.