Under these conditions, the rf signal into the detector is large enough to give a linear response.
ANTI CLOCKWISE FULL
In use, R 17 should normally be kept set anticlockwise, at the minimum gain setting, with just enough drive applied to the test circuit by R 9 to give full scale deflection. Ian Hickman, in Analog Circuits Cookbook (Second Edition), 1999 Operation If the rotor movement of the magslip comes outside the range corresponding to full fin tilt, then the servo pistons travel to their maximum position in one direction or the other away from centre and the main valve is reset at the maximum output arm position. The main valve reset then brings the main valve down to its neutral position and oil supply is stopped to the power pistons thus stopping the movement of the output arm. The servo pistons stop moving, at the same time halting the operation of the main valve. When the rotor of the magslip stops its rotation, the pilot valve reset brings the pilot valve down to its neutral position thus stopping the inflow of oil into the servo pistons. Meanwhile the pilot valve reset moves down and checks the upward movement of the pilot valve and the left-hand side of the main valve reset arm moves down and checks the upwards movement of the main valve. Oil pressure is supplied to the power pistons and the output arm turns clockwise. This is followed by movement of the servo pistons (up) and this motion, through mechanical linkages, operates the main valve (up). Suppose that the rotor arm of the magslip rotates anti-clockwise then the pilot valve moves up (see Fig. Corbet Extra Master, in Ship Stabilizers, 1966 Operation If we deconstruct the transformer to such an extent that it is a few turns of wire with a manifest helix structure with no loop of high permeability magnetic material, and drive it with a high frequency signal such that the windings work like antennae, then the full geometry of the windings will affect the performance slightly, including whether the windings are wound in the same or opposite direction.W. This is a structure that is very small compared to a wavelength of the signals passing through it, and that has a pair of multi-turn windings linked by a high permeability magnetic loop. For the first winding to go on, we know the 'start' wire will have highest capacitance to the core, and the finish wire have highest capacitance to the next winding, or the interwinding screen. A dot at the start of each other winding completely defines their mutual polarity.įor some transformers, where inter-winding capacitance is important, it is necessary to know which end of a winding is nearest to another winding, or to the core. This needs one of its wires marking somehow, and a dot at the start is as good as any other. If we choose one coil as a reference, and then record whether each other coil is wound in the same of the opposite direction, then we have to define which polarity of the reference coil we are taking as reference. If you take the first winding as the reference, and record whether the other windings use the same or opposite handedness, then there is no observed influence on the performance of the complete transformer (but see caveat below). Which is right? The magnetic circuit is a loop, it doesn't have a 'this way up' end! However if you hold the core the other way up, it would be CCW. In practice, the handedness of each winding, CW or CCW, cannot be specified, as there is no reference! If you hold the core this way up, any given coil may be CW. There are several factors that could be thought to affect the performance of a multi-winding transformer.ī) the polarity of each winding with respect to the othersĬ) where each winding starts and finishes
0 kommentar(er)
