Abstract: An automatic power generation type flowmeter generates a measuring signal through measuring of a flow rate of fluid flowing through a passage and transmits it to a receiver at a remote location. The flowmeter includes a power generator coupled to a detection shaft rotated under an action of a fluid flowing through the passage and outputting an electric signal. The power generator includes a permanent magnet having S- and N-poles, an electromagnetic coil having a core around its axis and arranged adjacent to the magnet with the axis of the coil located in a direction substantially perpendicular to a rotation shaft, a first stator magnetically coupled to the core and having its magnetic induction portion arranged opposite to the N-pole of the magnet, and a second stator magnetically connected to the core and having its magnetic induction portion arranged opposite to the S-pole of the magnet.

Abstract: A Karman vortex flow meter for measuring the flow rate of a fluid under test in a pipeline having a base to be secured to the pipeline, and a vortex detector having an axis intended to intersect the pipeline. The vortex detector includes a post, a detector flange at least partially surrounding the post having a free surface, a columnar force receiving part extending from the post into the pipeline for producing a Karman vortex, and a strain detecting element coupled to the free surface for detecting the Karman vortex and producing an output signal corresponding to the detected Karman vortex.

Abstract: A low torque magnetic pick-off assembly has both a stationary magnet and a magnet mounted on a rotating member. The stationary magnet is oriented parallel to the axis of the rotating member and is used to establish a magnetic field in a field guide passing through a coil. The magnet on the rotating member modulates the magnetic field passing through the coil thereby inducing an output voltage in the coil. The output voltages indicates the passage of the magnet on the rotating member past the stationary magnet.

Abstract: A device for measuring the torque of a shaft which uses two magnetic field sensors located between two coaxial magnetic encoders. The magnetic field sensors are angularly displaced by one-fourth of the period of magnetic field.

Abstract: An anemometer having a surface resistor disposed on a substrate and having a meander shaped current path imprinted into it. To permit presetting of the resistance value of the current path, resistance trimming lines are disposed parallel to the partition lines that limit the current path.

Abstract: A multiphase petroleum stream pipeline analyzer including a defoaming device connected to an upstream section of the pipeline which reduces foam in the petroleum stream. Apparatus stratifies the petroleum stream after defoaming by causing the stream to flow down a decline at a predetermined angle to the horizontal. A device traps gas released during stratification and provides the gas to an accumulator. Liquid exits from the trap device and is allowed to re-enter the downstream section of the pipeline. The accumulator also accumulates gas from the defoaming operation and the stratification. The gas is allowed to exit from the accumulator to the downstream section of the pipeline so as to recombine the petroleum stream. A plurality of sensors monitor liquid and gas in the trap, and exit from the trap and the accumulator for various conditions of the liquid and the gas and provides corresponding signals. A water cut monitor provides a signal corresponding to the water cut of the liquid.

Abstract: A magnetic signal pickup mechanism is presented. The mechanism comprises a moving magnetic element mass fixedly coupled to a moving element mass such as a nutator. A movable magnetic element wire is physically non rigidly coupled magnetically to the moving magnetic element mass and further coupled mechanically to quasi restrictive longitudinal pivot points wherein the pivot points restrain longitudinal movement in relation to the moving magnetic element mass, the pivot points being offset sufficiently distant from each other to prevent contact between the wire and any structure other than the pivot points, wherein the wire is non straight.

Abstract: A rotameter comprises a vertically disposed flow passage with cross sectional area progressively increasing from the lower inlet to the upper outlet thereof, and a float suspended in the flow passage and guided by a plurality of ridge-like float guides disposed parallel to and axisymmetrically about the central axis of the flow passage, which float guides keep the float suspended in the fluid stream in a coaxial relationship to the flow passage, wherein a float position indicator disposed within an elongated groove included in one of the float guides following the guiding edge thereof moves with float in vertical directions due to the magnetic attraction therebetween created by a permanent magnet included in either the float or the float position indicator, and provides an electrical signal representing the vertical position of the float, from which the flow rate of the fluid moving through the flow passage is determined.

Abstract: A vortex flowmeter wherein a main body and a fitting plate with a by-pass are integrally formed with each other and the fitting plate placed an an outlet of a passage of small diameter and of a constant section extending from an inlet of a large diameter with a continuous contraction. The passage in the main body includes a vortex generator and a vortex sensing means for detecting a vortex produced by the vortex's generator. The by-pass line is composed of a plurality of round through-holes arranged in a circular portion of the fitting plate.

Abstract: The reciprocating piston positive displacement flow meter of the present invention comprises a hollow flow tube having a movable piston for reciprocal movement between opposite ends and a solenoid controlled valve assembly having a sliding valve member for reversing the direction of fluid flow through the flow tube in response to the activation and deactivation of a solenoid. The solenoid is switched from an activated state at one end of the piston stroke to an unactivated state at the opposite end.

Abstract: An apparatus for direct measurement of torque in an articulated joint includes a driver assembly, a driven assembly with said driver assembly and driven assembly mounted on a common axis, for enabling angular displacement of the driven assembly relative to said driver assembly about said common axis. An interlock is provided and is responsive to a remote actuator, for rotating said driven assembly relative to said driven assembly, and at least one force sensor is disposed in a position for transmitting rotational force from said interlock to said driven assembly, for measuring said rotational force in order to provide a torque measurement.

Abstract: A method and apparatus controls the temperature of a precision resistor and, in turn, measures the flow rate of a flowing fluid mass. The precision resistor is a hot wire or hot film of an air mass meter of an internal combustion engine of a motor vehicle. Through timed current flow, the operating temperature of the precision resistor is maintained at a higher temperature than the temperature of the flowing fluid mass. The timing of the electric current for maintaining the operating temperature of the precision resistor is controlled based on the magnitude of the gating voltage supplied to heat the precision resistor.

Abstract: An image forming apparatus for forming an image corresponding to a subject is provided, which image forming apparatus includes a taking lens for making an optical image corresponding to the subject, and a dividing portion for dividing the optical image transmitted via said taking lens into several adjacent optical image parts. The image forming apparatus further includes several solid-state image sensors corresponding to the number of the optical image parts, each of said solid-state image sensors receiving a corresponding optical image part from among the several optical image parts from the dividing portion and outputting an image signal corresponding to the optical image part, the optical image parts received by said solid-state image sensors being adjacent to each other.

Abstract: In an exposure control mechanism for a camera, and more particularly for a still video camera which obtains an image signal using an image sensor, a first preliminary exposure is conducted with almost all the center portion of an automatic exposure luminance range exposed to light of the most suitable exposure level. The specific number of pixels obtained through this exposure is limited to within the foregoing middle luminance range. However, since the total number of pixels are known, the total number of pixels saturated with image pick-up signals due to high exposure intensity in the portion recognized as white, and the total number of pixels in the portion recognized as black due to low exposure intensity, can be obtained by distribution data of pixels in an image pick-up screen with regard to the luminance level obtained by the first preliminary exposure.

Abstract: Apparatus for photographic movie film to video signal conversion comprises a movie film to video conversion apparatus such as a telecine (11) in which the film (1) is aligned frame by frame to derive a video signal, and a video signal processor (16), such as a digital video effects apparatus (12), to process the derived video signal by reference to registration features (2) of the film (1), such as L-shaped registration marks (2) exposed thereon adjacent to each frame (3) of the film (1), to obtain more accurate frame alignment of the video signal.

Abstract: An anemometer, in which a preferably cylindrical flow-capturing surface (1) is fastened to the control lever (10) of an electrical transducer (2) which is fixed to the top of a support (16) mounted in a box (15). The flow-capturing surface (1) is fastened to a cylindrical hollow body (18) arranged in an annular chamber (19) which surrounds the electrical transducer (2) and the support (16) thereof. The upper part of the cylindrical body (18) is passed through an opening (315) formed in the upper wall (115) of the box and sealingly closed by a resilient annular collar (14) fixed to the cylindrical hollow body (18) and to the upper wall (115) of the box (15). The flow-capturing surface (1) is protected by a covering disc (23) fastened to the upper wall (115) of the box (15) by spaced thin rods (24).

Abstract: An apparatus for measuring the flow rate of a stream of material includes an impeller shaft; an impeller wheel secured to the impeller shaft; a first roller bearing having an inner race receiving and supporting the impeller shaft; a drive motor having an output shaft; a first gear secured to the output shaft; a second gear secured to the impeller shaft; and a third gear meshing with the first and second gears, whereby the drive motor is drivingly connected to the impeller shaft by the first, second and third gears for rotating the impeller shaft with a predetermined rpm. The stream of material is directed onto the impeller wheel, whereby a braking torque is applied to the impeller wheel by the stream of material impinging thereon.

Abstract: Reduced attitude sensitivity is achieved in a fluid mass flow meter of the type which determines fluid flow from the temperature difference between an upstream sensor and a downstream sensor positioned along the flow path of the fluid externally of a sensing conduit for the fluid. A housing, taking particular forms, has wall structure spaced along the sensors adapted to substantially limit the ambient gaseous atmosphere along the sensors to a thin film. The housing wall structure further is spaced along portions of the sensing conduit between the sensors and the input and output ports of the conduit to substantially limit the ambient gaseous atmosphere along such portions to a thin film. In one form, such wall structure, along these portions, converges from both directions along the conduit, to provide support regions for the conduit. The sensors, specifically, are self-heating coil elements formed of temperature-sensitive resistance wire wound around the outside of the sensing conduit.

Abstract: A fluid speed measuring probe utilizing a change in the resistance of a sensor made of a small piece of a single crystal of germanium in accordance with a change in temperature. The peripheral surface of the sensor is covered with an insulating member of a synthetic resin or the like and the outer periphery of the covered sensor is further covered with a spherical metal having heat conductivity. Thus, the directivity of the sensor is eliminated, thereby enabling accurate measurement of the speed of a fluid irrespective of the angle formed between the direction of the flow of the fluid and the probe.

Abstract: A flow sensing device includes a semiconductor substrate 31 and a pivoted beam 1. Below one half of the beam is a channel 7 running throughout the substrate 31, and below the other half of the beam is a cavity 8. During operation, a differential force exists across the beam, and the amount of force required to compensate for this differential force is indicative of the rate of fluid flow.