A device for detecting vibrations in the moving blades of a rotary comprer, comprising a pick-up implanted in the internal edge of the pick-up, the signal from which is applied exclusively to an electronic circuit comprising means for deriving from it the modulation ratio and for deriving from said ratio, when it exceeds a predetermined threshold, an electrical signal. The application of this device is to the suppression of vibrations due to airflow break-up or break-away effects in the blading ...

A rotating member having a plurality of electrodes at a predetermined pitch is secured to a rotating body of a rotary machine, opposite to the rotating member a stationary member having a plurality of electrodes at the same pitch as that of the rotating member is arranged, and a variation in electrostatic capacity between the electrodes of the rotating member and the electrodes of the stationary member is detected so as to produce an output corresponding to a rotational speed of the rotating bod...

Automatic guided vehicles require an accurate method and apparatus for determining vehicle velocity. The subject apparatus is associated with a vehicle having at least one surface engaging idler wheel. A resolver produces a rotation angle rate signal having a value responsive to the angular rotation rate of the idler wheel. A resolver-to-digital converter receives the rotation rate angle signal and produces a rotation rate pulse signal. A clock substantially continuously produces clock pulse sig...

A CPU includes a bus interface, a control unit, an instruction cache, a data cache, a secondary cache, an instruction decoder, an arithmetic unit, and registers. When operations can be performed only with the cache, the CPU inhibits access to external memory and stops power supply to the external memory. With this arrangement, by performing operations in the CPU without using the external memory, it is possible to realize a speedy processing and to stop power supply to the external memory, thus ...

Lower order control devices control plural battery cells configuring plural battery modules. An input terminal of the low order control device in the highest potential, an output terminal of the low order control device in the lowest potential, and a high order control device are connected by isolating units, photocouplers. Diodes which prevent a discharge current of the battery cells in the battery modules are disposed between the output terminal of the low order control device and the battery ...

A mathematical expression is converted and approximations applied to remove complex processes, simplifying the circuitry of system which controls compressor speed in dependence on ambient temperature.

Precise sensing and controlling of temperature during in-situ testing of a structure used in an integrated circuit by fabricating or placing a heat source element adjacent to the structure and by fabricating or placing a temperature sensing element adjacent to the structure.

New amino-benzamides and their use for the treatment of epilepsy.

The instantaneous angular velocity of a rotating shaft or the like is translated from the relative rotation of a mark carrier, having a scale of marks, and a sensing device. A series of signals are produced and processed in a calibrating run and thereafter in a series of operating runs. In the calibrating run, the time distance of the sensed signals between at least one pair of the marks is measured and from it a calibrating value is calculated corresponding to the absolute angular distance betw...

A current measuring apparatus for measuring a power supply current received by an electronic device includes: a first current supplying unit for outputting a first current which is a part of the power supply current; a smoothing capacitor for smoothing the first current output by the first current supplying unit connected with one end thereof; a capacitor of device side for smoothing the power supply current, electrostatic capacity of the capacitor of device side being smaller than that of the s...