A three phase A.C. to single phase A.C. converter wherein the output voltage is not disturbed if one of the input phase lines becomes inoperative. The three phase A.C. is first rectified, and a D.C. voltage is derived from the resulting rectified D.C. current. The D.C. voltage is regulated, and a single phase A.C. voltage is generated from the regulated D.C. voltage.

The present invention provides an improvement in separating a mixture of two distinct fluid phases of the same or different materials, one dispersed in the other, by ejecting a flowing stream of the mixed fluid phases from a conduit and then deflecting the ejected stream radially outwardly whereby centrifugal and gravitational forces cause the flowing stream to separate with the less dense phase of the two phases forming a top layer and the more dense phase forming a bottom layer and thereafter ...

A method of obtaining in image of the phase change introduced by an object in penetrating radiation incident on the object includes irradiating the object with penetrating radiation having high lateral spatial coherence, and receiving at least a portion of the radiation at a detector after the radiation has merged from the object and thereby obtaining and storing at least two intensity records for the received radiation each including intensity values at predetermined intervals. These values are...

A phase shifter receiving an input signal and producing two output signals having a 90.degree. phase difference from each other includes first and second input nodes for respectively receiving first and second signals having opposite phases; a first serial connection of a first resistor and a second resistor at a resistor node, the first and second resistors having the same resistance values, a first end of the first serial connection being connected to the first input node; a second serial conn...

A phase difference signal generator responds to two input signals to generates two phase difference signals which rise at a time interval corresponding to the phase difference between the two input signals and fall at the same time. A lagging signal detector detects a lagging one of the two phase difference signals and a pulse generator responds to the detected output from the lagging signal detector to generate an appendage pulse of a width larger than a predetermined width. The appendage pulse...

The invention relates to a pipette used for dosing of liquids. The most characteristic feature of the pipette is that in order to remove the liquid as completely as possible, the dosing piston (18) is pressed first into a low position below the basic position, after which an additional removing phase is carried out using a separate removing piston (13), so that the piston area that affects the liquid container (3) is greater during the additional removing phase. This way, a pressure stroke is fo...

The single-acting phase variator includes a piston actuator movable towards an actuate position, as a result of the admission of a pressurized fluid to a supply chamber through a distribution and discharge duct opening in the chamber against the force of a spring. A valve is provided in the variator for connecting the distribution and discharge duct alternatively to a feed duct for the pressurized fluid or to a discharge opening for the rapid discharge of the fluid from the chamber.

Disclosed is a phase detection apparatus for accurately calculating the phase of an input digital complex baseband signal point independently of its amplitude value, without requiring any large-capacity arc-tangent table memory and within a practical calculation time. This phase detection apparatus rotates the phase of the input signal point in a clockwise direction and determines whether the rotated signal point agrees with a reference phase point. If the rotated signal point leads the referenc...

A phase modulator that generates four different kinds of phases according to input data, using a counter and an adder. There is provided a phase modulator with a serial-to-parallel data converter for converting serial data into two parallel data which are reduced by half of the clock velocity; and a digital phase signal generator for generating digital signals having a phase difference, using a counter and an adder. In this manner, the digital signals have digital values similar to sine waves ha...

A method of obtaining in image of the phase change introduced by an object in penetrating radiation incident on the object includes irradiating the object with penetrating radiation having high lateral spatial coherence, and receiving at least a portion of the radiation at a detector after the radiation has merged from the object and thereby obtaining and storing at least two intensity records for the received radiation each including intensity values at predetermined intervals. These values are...