However, the above two disadvantages can be overcomeby installing diesel-driven DC generatorsand turbine-driven 3-phase alternators which can be used either in the absence of or on the failure of normal electric supply. Motor types for industrial electric drives Ok, let’s take a short overview...
FIG. 2 illustrates a schematic structure of an optical pickup embodying the present invention. FIGS. 3 and 4 illustrate a bi-axial mechanism of an objective lens in the optical pickup. FIG. 5 illustrates a first embodiment of a tracking servo system according to the present invention. ...
Wang1 · Siqi Jiang1 · Xinghan Li2 · Mozhu Wang1 Received: 16 January 2024 / Accepted: 1 December 2024 / Published online: 4 January 2025 © The Author(s) 2024 Abstract Causal relationships play an irreplaceable role in revealing the mechanisms of phenomena and guiding intervention ...
"Definition of a Valve" Mechanically actuated valves require an external device, motor, or other force to operate. These are referred to simply as actuated valves. An example is the solenoid valve in your automatic dishwasher. An electric signal acts upon a coil, which electromagnetically pulls ...