Actuator voltage source

The active compensation of the disturbing force Pi can now be achieved by a suitable feedback of the measured base acceleration ai to the input of the high-voltage source for the piezo actuator. Based on a signal flow diagram, which is always to be developed by the designer, for the functionality of the force compensation will be investigated on the computer with support of an appropriate dynamic simulation and analysis software system, for example MATLAB [4]. 

To induce mechanical deformation with an actuator based on piezoelectric material, electric power needs to be supplied. In electrical engineering, two ideal power sources are distinguished. A voltage source provides a constant voltage, while the wattage may then be adjusted via the current. A current source the other way round keeps the current constant, while the wattage may then be adjusted via the voltage. 

When a voltage source is connected to the electrodes of a piezoelectric actuator, the electric potential (fi is prescribed. This includes the compensation... 

To assess and compare the performance of different configurations, it is sufficient to regard the static behavior of the non-rotating structure in conjunction with the voltage source driven actuator application, as discussed in Section 4.5. With the subsequently described restrictions, it is possible to derive an analytic solution. 

Such a fixing of the electric field strength implies the utilization of a voltage source for the actuator application, as described in Section 4.5. 

Furthermore, in order to be a certified infusion operation, it is required that the pump can operate if the power cuts out or is even unplugged and can detect the change of flow rate or pressure even if the flow is blocked or kinked, taken backward and finished when an infusion bag or pump is empty. An IPMC has characteristics both as an actuator and sensor. In addition, it is easy to control the frequency (flow interval) and flow rate by changing of the electric signals with low voltage. We propose a new miniaturized disposal IPMC infusion pump with embedded computer controlling, which can control a micro flow with a low power source, batteries. 

Actuator Application with Voltage and Current Source... 

Derivation of a general solution via the formulation of spatial beam finite elements, accounting for arbitrary combinations of actuator and sensor applications with voltage and current source, respectively measurement, to capture the dynamic behavior of the rotating structure. 

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