Abstract:
Device for determining the transparency of the atmosphere between two points comprising one light transmitter and one receiver respectively on the two points, optic fibers connecting the corresponding transmitters and receivers, means to separate the data coming through the atmosphere and through the fibers and a data processing device connected to said means.
Abstract:
Apparatus for remote reading successive data of various devices wherein a common line connected to a recorder joins the data sources of sub-units to successively transfer data to the common line, a signal being transmitted at the end of each reading to switch to the next sub-unit so that all the data are successively recorded. Each sub-unit comprises registers with means to register the data, a motor for driving a member analyzing the registering means, both of them being connected to a common line and driving the switching elements, a transfer line for connecting a succeeding register after a work cycle and a recorder being connected to the common line to record the successive data.
Abstract:
Device for measuring the paramagnetic gas concentration of a gas mixture, constituted by a pick up of general flat shape placed perpendicularly to the electric fluxes of a magnetic field having abrupt intensity variations, said pick up comprising at least one member composed of a flat metal part and an adjacent closed cellshaped metal part filled with a nonparamagnetic gas or put under a vacuum, connected to the preceding part in a region of the airgap where the induction is uniform, each of these parts respectively having equivalent sections of metal in the regions where the field intensity varies abruptly.
Abstract:
An impact deflection fluid amplifier comprising a plate provided with a main supply channel and a secondary supply channel placed coaxially so as to transmit two opposing jets, the jet coming from the main supply channel having a higher pressure, two control channels placed facing each other, perpendicularly to the common axis of the supply channels and on the side of the main supply channel, and two regenerating channels placed symmetrically in relation to said axis, on the side of the secondary supply channel.
Abstract:
A method for selecting a conductor or conductors of a threephase power transport line and device for operating the same which when an earth fault has been determined detects for which phase the negative sequence or inverse component makes with the zero sequence or homopolar component an angle less than 60* then for which of the detected phase the negative sequence or inverse and the positive sequence or direct components make an angle exceeding 90*, and which when a defect not earthed has been determined detects for which of the phases the angle between the inverse and direct components make an angle less than 60*.
Abstract:
The device comprises a magnetic circuit formed by an annular permanent magnet secured between the peripheral rims of two cheek members of which one is divided into two equal parts, the frame of a mobile assembly being engaged on one of the rims and the device being provided with an adjustable magnetic shunt.