Abstract: The invention relates to instruments which include radiometers and which generate a laser beam for striking a target at a distance to assist in aiming the instrument at a selected area of a target. Provision is made for splitting a single beam, used for instance for centering the instrument on the target, into a plurality of beams for creating a pattern or for defining an area on the target. When a single beam is split, the resultant plural beams produced are of relatively lower power, which may be insufficient for visibility on a target at a distance. The invention provides apparatus to increase the power of the single laser beam when it is split, so as to provide plural beams of appropriately higher power and visibility.

Abstract: The method according to the invention consists in providing two containers fed by the water source whose pollution is desired to be measured, each of the containers containing fish and being equipped with a detector able detect any abnormal behaviour of the fish, alternate the lighting and obscurity periods for said two containers, carry out the detection of the behaviour of the fish in the two containers and trigger an alarm signal when the detection shows an abnormal behaviour of the fish.

Abstract: The method of the invention includes the following stages: a first stage for identifying the first order statistical anomalies on the basis of a set of raw regionalized data, a second stage for identifying second order statistical anomalies on the basis of the first order anomalies with extraction of the components considered as anomalistic components and components considered as coherent in space, establishing a quantified relation between any combination of the estimated values of the anomalistic components of the first and/or second order and any combination of the estimated values of the coherent components of the first and/or second order. The method can be applied in particular to geophysical data, image data obtained by physical methods or even to any type of sampling of natural phenomena.

Abstract: The invention concerns an automatic analysis apparatus wherein the liquid sample to be analysed is arranged in a cup (C) containing a ferromagnetic ball (BE) driven in a periodic motion under the effect of a magnetic field. In order to detect the ball (BE) movements representing the physical state of the sample, an electronic camera (CM1 to CM3) is oriented towards the cup (C) while a processor (P) determines, from the cup (C) image, the modifications in the ball (BE) movements. The invention is useful for producing small-size and medium-size automatic appliances.

Abstract: The inventive acoustic filter comprises two solid bodies (1, 2), at least one of which is piezoelectric. Said bodies are interconnected in such a way as to form a plane interface (3) between them, acoustic waves being generated by the piezoelectric body by means of an electrical field and being guided by the plane interface between the two solid bodies. The solid bodies are selected wish the objective of ensuring that the acoustic energy of said waves decreases exponentially in the two bodies in a perpendicular direction (Oy) to the interface, starting from the interface.

Abstract: A ventilated food preservation, container having a replaceable hermetically re-sealable lid closure cover portion fitted with a lid finger grip to open the lid and allow control of pressure inside the container in a single movement through a ventilation pressure release hole. When the outer cover portion of the finger grip portion is gripped to lift the closure member, the finger grip portion partially detaches from the lid and releases the seal between the lid and the container.

Abstract: The invention concerns a method which consists in performing for a time interval ranging between 1 ms and 10 ms a first turbidimetric measurement using a first light pulse originating from a first source (SL1) emitting in a first frequency range, a second measurement of intensity transmitted in response to a second light pulse originating from a second source (SL2) emitting in a second frequency range and, optionally determining the fluorescence of the sample. The invention is applicable to a biological analysis process as well as to hemostatic analyses.

Abstract: Method and Apparatus are provided for visibly outlining the energy zone to be measured by a radiometer, the method comprises providing a laser sighting device on the radiometer adapted to emit more than two laser beams against a surface whose temperature is to be measured and positioning said laser beams about the energy zone to identify said energy zone. The apparatus comprises a laser sighting device adapted to emit more than two laser beams against the surface and means to position said laser beams about the energy zone and to identify said zone. A primary laser beam is passed through or over a beam splitter or a diffraction grating and formed into a plurality of secondary beams which produce on the target surface a pattern which identifies the zone investigated with the radiometer. Laser light may be directed axially to illuminate the central area of the zone.

Abstract: The invention relates to a vibrating gyroscope comprising vibrating cylinder (1) that is magnetically or electrostatically excited. Regularly distributed masses (19) designed to lower the vibration frequency of said cylinder are arranged thereon. The inventive gyroscope is much more accurate than conventional gyroscopes and can be produced easily at low cost. The invention can be used to measure angular rotation or angular speed.

Abstract: The invention relates to modification of a laser beam produced, for purposes of aiming at a target, by instruments for measuring, controlling and treatment, such as pyrometers. The invention further provides methods, for aiming of such an instrument at a target by use of a single beam, and splitting the aiming beam into fractional beams for defining a selected area of the target, and particularly as an automatically repeated action, the fractional beams being directed, for example, to indicate points on the target bounding a selected area thereof, or again being directed at successive shifted points bounding the selected area of the target, or yet again with the fractional beams being merged to define a closed loop area of the target.

Abstract: The invention concerns a device for filtering gas comprising a microporous or microfibrous adsorbent filter (6) and means for forcing an air flow between an exhaust hood (2) and outlet duct (3) for the filtered air. The invention is characterized in that it comprises liquid spraying means (18) and centrifuging means arranged between the spray means and the filtered gas outlet. The particles wetted by the sprayer are blocked by the internal rotary filter and discharged with the carrier liquid towards an external container (10).

Abstract: An attachment for a hand held laser directed temperature measurement device includes a radiometer for invisible radiation detection and a laser beam generator for projection of visible laser light onto a target surface to identify a target area of measurement and includes a movable laser beam modifying carrier, such as a diffraction beam splitter, to display a selectable light pattern on the measurement target area.

Abstract: The device for implementing the method consists in a receiving unit at the station, associated with a computer managing the dispensing nozzles, a terminal associated with a pump controller and linked to the receiving unit and an identifying module associated with each of the nozzles and also on the vehicle, a device for reading the modules provided in the inlet of the fuel tank, a processor for typing out messages including data from the reading device as well as other data and a transmitter/receiver to transmit the messages to the receiver of the receiving unit. The invention is applicable particularly to the supply of fuel to vehicles of road transport companies.

Abstract: The invention relates to a tool holding assembly with an adjustment means capable of causing the tool holding end of the assembly to bend in relation to the opposite attachment end of the assembly. This is accomplished by providing first and second contact surfaces longitudinally spaced from each other along the assembly, and providing an adjustment means having at least one adjustment screw, wherein by adjusting the screw, pressure can be simultaneously applied by the adjustment means onto the first and second contact surfaces, such that an axis of one end of the assembly can be displaced by bending in relation to the other.

Abstract: Method and apparatus are provided for visibly outlining the energy zone to be measured by a radiometer. The method comprises the steps of providing a laser sighting device on the radiometer adapted to emit more than two laser beams against a surface whose temperature is to be measured and positioning said laser beams about the energy zone to outline said energy zone. The apparatus comprises a laser sighting device adapted to emit more than two laser beams against the surface and means to position said laser beams about the energy zone to outline said energy zone. The laser beams may be rotated about the periphery of the energy zone. In another embodiment, a pair of laser beams are projected on opposite sides of the energy zone. The laser beams may be further pulsed on and off in a synchronised manner so as to cause a series of intermittent lines to outline the energy zone. Such an embodiment improves the efficiency of the laser and results in brighter laser beams being projected.

Abstract: The invention concerns a vibrating gyro-scope comprising a vibrating cylinder (1) magnetically excited by an internal stator (9) and whereof the vibrations are detected by means of the same stator comprising field coils and separate or common or multiplexed detection coils. The resulting gyroscope is very accurate while being economical and simple to produce.

Abstract: The invention provides packaging material, both in the form of self-sustaining, e.g. rigid sheeting, and in the form of wrapping material such as paper or plastics material, which impart to a package illustrations of the contents of the package when those contents are viewed from different angles, thereby to facilitate appreciation (without undoing or unwrapping the package) of the nature of the contents and particularly the appearance of the contents of the package when seen from more than one angle. In a simple form, a package comprises a cubic or otherwise rectangular rigid or semi-rigid box housing an article, on at least some of the external faces of which package there are provided illustrations of the appearance of the contents as though viewed from the respective direction.

Abstract: The invention concerns a support structure characterized in that it comprises at least: a shaft (1) whereof the two ends are designed to be urged to rest on two fixed elements, one of which may be the ground and the other, a fixed object located above the ground; two series of steps (M1, M′1-2, M′2-M3, M′3) fixed on the shaft, on either side thereof respectively; and a ramp (7), integral with the shaft (1) extending vertically with respect thereto, at a distance from the steps (M1, M′1-M2, M′2-M3, M′3) less than the average length of a leg, such that a user can move on the steps (M1, M′1-M2, M′2-M3, M′3) by striding over the ramp (7). Said structure enables the user to stand on the steps with greater stability while keeping his hands free.

Abstract: The invention relates to modification of a laser beam produced, for purposes of aiming at a target, by instruments for measuring, controlling and treatment, such as pyrometers. It is known to provide such instruments with a single laser beam for aiming purposes. It is also known to provide such instruments with a plurality of divergent beams serving to define an area of a target. In a first embodiment the present invention provides a carrier having a beam splitter movable out of and into the path of the laser beam so as to provide respectively a single aiming beam and a plurality of fractional beams for defining an area of a target. In a preferred form, provision is made for periodical and repeated movement of the beam splitter into and out of the path of the aiming laser beam.