Port state control a GUIDE FOR MEMBERS

... Operation and control In many processes, a physical variable such as temperature, pressure or voltage has to take up a specified value, and maintain it as accurately as possible A simple example is a ... numerical values, and uses them to calculate the manipulating variable This has certain advantages compared with analog processing: - increased accuracy of control, depending o...

Ngày tải lên: 13/12/2013, 00:14

... Pediatric Asthma Coalition of New Jersey Sandra Fusco-Walker, Allergy & Asthma Network Mothers of Asthmatics Teresa Lampmann, Pediatric Asthma Coalition of New Jersey Guide for Developing Culturally ... Linguistically Competent Health Education Materials: A Guide for the State of New Jersey The following checklist has been developed to assist...

Ngày tải lên: 14/02/2014, 13:20

... variables 1. 9 Main areas of control engineering Today, control engineering has applications in almost every area of technology In Chapter 1. 1 we have already seen that these different applications ... already discussed in Chapter 1. 3, “Operation and control , a parameter can be kept constant by suitable operation An example could be to maintain a constant furnace temper...

Ngày tải lên: 07/08/2014, 15:20

... Temperature small electrically-heated oven large electrically-heated furnace large gas-fired reheating furnace autoclave high-pressure autoclave injection molding machine extruder packaging machine ... a change in manipulating variable is only reproduced in the process variable after the dead time has elapsed If the change in manipulating variable was too large, there is a time interval b...

Ngày tải lên: 07/08/2014, 15:20

... controllers takes up a value such that the resulting manipulating variable is just sufficient to maintain the process variable at a constant value A P controller always has a permanent control deviation ... detail under 3. 2.2 3. 2.2 Permanent deviation and working point A P controller only produces a manipulating variable when there is a control deviation, as we already k...

Ngày tải lên: 07/08/2014, 15:20

... quality (see Fig 46 ) Linear control area (linear optimum): [A] min = A1 - A2 + A3 Magnitude control area (magnitude optimum): [A] min = | A1 | + | A2 | + | A3 | + Squared control area (squared ... disturbance is taken as 10% of yH In addition to the overshoot amplitude and the stabilization time, for mathematical analysis, the area of the control error is also used as a...

Ngày tải lên: 07/08/2014, 15:20

... A modulating controller does not receive an actuator retransmission signal and must always assume a linear actuator action If the actuator has a non-linearity, or play is present in the actuator ... PD/PID Table 8: Control configurations of a quasi-continuous controller, and actual control actions Example: A quasi-continuous controller configured as a proportional controller a...

Ngày tải lên: 07/08/2014, 15:20

... available to measure disturbances and maintain them constant An example of this is the temperature control of a gas-fired annealing furnace Here, the main disturbance, gas pressure, can be maintained ... transfer from automatic to manual mode, where the manipulating variable remains at its current value, and can then be changed manually In case of a broken probe, caused, for example,...

Ngày tải lên: 07/08/2014, 15:20

Ngày tải lên: 28/08/2013, 17:00