Abstract: A resilient, impact-resistant, one-piece ballast apparatus is useful to provide external weight and stability for portable barricades and signs. The ballast is a solid, compression molded rubber device having a predetermined weight and design features including thickness, shape, perimeter contour and holes that permit the ballast device to be easily handled, quickly and securely affixed to or removed from barricade and sign structures, and stored for transport or between uses. The flat surface of the ballast permits application of identifying indicia of ownership that prevents loss and promotes reuse with resultant savings of economy and resources.

Abstract: In a method apparatus for measuring the temperature of a semiconductor substrate during processing thereof in a processing chamber, a resonant circuit formed on the substrate surface is energized by an electromagnetic field radiation device, and disturbances in the electromagnetic field are detected to determine the resonant frequency of the resonant circuit. The temperature of the substrate is determined as a function of the resonant frequency. The substrate is moved into and out of processing chamber by a transfer arm, and the radiation device is disposed on the transfer arm or mounted on the processing chamber. Multiple resonant circuits may be provided, which are energized by movement of the transfer arm, without transferring the substrate.

Abstract: An electrical coil, particularly a gradient coil for a magnetic resonance apparatus, contains at least one electrical conductor, a carrier structure, at least one component of a cooling device and a heat insulator, which is arranged for at least one section of the conductor between the conductor and the carrier structure.

Abstract: One embodiment of the present invention is a method for nuclear magnetic resonance imaging of an investigation region of formation surrounding a wellbore. The method comprises the steps of applying a series of magnetic field gradients to phase encode nuclear spins within the investigation region, wherein the strength of the magnetic field gradient applied is different from at least one previously applied magnetic field gradient within the series. Nuclear magnetic resonance signals are detected from the investigation region resulting from the series of magnetic field gradients.

Abstract: In order to allow easy estimation of the operating condition of a magnet by a technician of any skill level, and to allow accurate prediction of a potential failure beforehand, a data processing section 52 is provided for resolving pressure data for a cooling helium gas, level (remaining amount) data for a liquid helium, first temperature data for a first stage of a refrigerator, second temperature data for a second stage of the refrigerator, and third temperature (room temperature) data for an equipment room 13 in which a compressor 40 is placed, as prespecified parameters, into a plurality of elements, using the elements as magnet data, calculating the Mahalanobis distance D2 of the normalized magnet data, and comparing the calculated Mahalanobis distance D2 with data stored in a database 53 obtained by developing magnet data in a normal condition into a Mahalanobis reference space to estimate the operating condition.

Abstract: Test tubes with different dielectric properties are used for holding different samples/solvents within a nuclear magnetic resonance (NMR) probe of an NMR spectrometer. The test tube dielectric properties are chosen such that the overall capacitance seen by the NMR probe coils remains constant as different samples and test tubes are inserted into the probe. Samples having different solvents introduce substantially equal frequency shifts into the measurement circuitry. The disclosed systems and methods facilitate automated NMR measurements, and do not require specialized electronic or moving mechanical components for tuning compensation.

Abstract: There is disclosed: a measurement scale suitable for use with scale reader for determining displacement; various tracks all for holding the scale and all having a channel into which the scale is magnetically attracted; and a scale tensioner which in use tensions the scale in situ by release of a preload, prior to the scale being secured to a substrate, the tensioner being removable thereafter.

Abstract: A linear encoder for use with a guide assembly includes a scale (21), a head (22) for scanning the scale (21), and mounting elements (30) for releasably attaching the scale (21) to the guide rail (11) of the guide assembly, with the mounting elements (30) being arrangeable outside of the mounting surface (14) of the guide rail (11) and having stop surfaces (31, 32) extending perpendicular to the longitudinal direction (X) of the guide rail (11) for a parallel alignment of the scale (21) along the guide rail (11) and encompassing and engaging reference surface (15, 16) of the guide rail (11).

Abstract: A magnet is provided to a vibrating plate within a detection pipe unit and an electromagnet is placed opposite to the magnet with a slight gap therebetween. A drive circuit applies, to a coil at every predetermined measurement cycle, an alternating current at a frequency which is swept over a predetermined range centered at a resonance frequency of the vibrating plate. When the alternating current is applied, a phase comparison circuit detects a change in phase that is caused according to whether or not an object contacts the vibrating plate. A microcomputer determines presence/absence of the object based on the detected change in phase, measures the temperature based on the detected change in phase in a former half cycle of the predetermined measurement cycle and changes the swept frequency based on the result of measurement of the temperature in a latter half cycle of the predetermined cycle.

Abstract: Featured is a device for detecting electromagnetic signals, more specifically, the magnetic resonance signals from excited nuclei as well as related apparatuses, systems and methods. The detection device includes a planar strip array antenna including a plurality, and in more particular embodiments a multiplicity of parallel conductors (e.g., 4, 16, 32 or more of conductors). The length of the conductors is adjusted to substantially reduce the coupling of a signal in one conductor to an adjacent conductor(s). In a more specific embodiment the length is set so as to be equal to be about n&lgr;/4, where n is an integer≧1 and &lgr; is the wavelength of the signal to be detected (e.g., the wavelength corresponding to the NMR resonance frequency for the nuclei). The device also is configured so that the electromagnetic wave on each conductor is one of a standing wave or a traveling wave.

Abstract: A method and apparatus for detecting the level of red blood cells, plasma or serum, and organic separation gel in a test tube covered with multiple labels is provided. Visible and infrared light beams are projected onto a test tube. The portions of the light beams that pass through the test tube are detected as a function of position along the vertical axis of the test tube. The levels of the interfaces are then calculated from the detected portions.

Abstract: A new marker device is provided for increased safety due to a flexible design. The marker device includes a base and a flexible means that is positioned over the base. The bottom part of the flexible means is attached to the base. The flexible means maintains in an original position in absence of a natural or traffic perturbation. However, flexible means deviates from this original position in presence of a natural or traffic perturbation. Moreover, the flexible means restores from this deviated position back to the original position after the perturbation disappears or is removed. Furthermore, the marker device includes a cover to cover the flexible means.

Abstract: A soil indicator device is adapted to be disposed in the soil and has a substrate with an indicator coating thereon that is removable from the substrate when the indicator device is exposed to anaerobic soil conditions so that the indicator device changes color at least to some extent from that of the original coating.

Abstract: An NMR experiment is carried out with a probe having an inlet tubing connected to a flow cell and a twisted-pair wire is tightly wrapped around the inlet tubing in a helical manner to serve as a heater. As a sample liquid flows from a sample source into the flow cell, it is preheated such that the time taken for it to reach thermal equilibrium is reduced. The use of a twisted-pair wire as a heater minimizes the effect of induced magnetic field. A control device includes a temperature sensor for sensing the temperature at the inlet tubing to control the electric current for the heater to maintain the preheating temperature at a selected level.

Abstract: An indicator device captured between couplers of ends of firehose sections that point to the source of the firehose and to safety. The preferred embodiment includes gasket-like annular body which fits over the male threads of the male coupler and is captured between annular ends of the abutting male and female coupler bodies. Direction pointing fingers, integral with the annular body, point backward toward the hose section to which the male coupler is attached and are angularly oriented to fit between longitudinal lugs of the male coupler.

Abstract: A method of forming a magnetic resonance image involves separate measurement of the position of a measuring site. The magnetic resonance image is corrected on the basis of the measured position of the measuring site.

Abstract: The invention concerns a sensor for direct measurement of electromagnetic power, comprising a guiding structure (2) for bringing the power, a dissipative charge (3) and a thermometer. The invention is characterized in that the charge (3) and the thermometer are formed by a single element.

Abstract: A number of antenna elements of an antenna array for a magnetic resonance system supply respective reception signals from a reception volume. The reception signals are combined with one another in a basic combination and in a number of auxiliary combinations that are orthogonal to one another and contain components derived from isodirectionally circularly polarized magnetic resonance signal components of the magnetic resonance reception signals. At least two combinations are utilized for the image reconstruction.

Abstract: A sampling device for thermal analysis of solidifying metal, particularly compacted graphite iron, includes a container (2) essentially cylindrical, open at the top intended to be immersed down into and filled with a liquid metal to be analyzed, at least one temperature responsive sensor member (4), preferably two, a protective tubing (14) concentrically enclosing said sensor(s), arranged inside said container (2) and supported by a sensor support member (15) arranged above said container and attached to the container (2) by legs (16) and intended to guide and keep the sensors (4) in position, when immersed in the solidifying metal sample quantity (3) during analysis, wherein container (2) has an interior surface (17) intended to contact the sample quantity (3) during analysis, and an exterior surface (18) intended to contact the ambient atmosphere, the surfaces (17 and 18) being joined at the mouth (12) of the container (2), being equally spaced forming a closed insulating space (8), and the container (2) ha

Abstract: A microwave power sensor and a method for manufacturing the same. The microwave power sensor includes a semiconductor substrate with a nitride or oxide film formed thereon. A membrane which is a portion of the nitride or oxide film is floated by removing a portion of the semiconductor substrate. First and second thermocouple groups are formed to be symmetrically spaced apart from each other on the membrane. An RF input end is formed on the nitride or oxide film. A heating resistor is formed on the membrane to be connected with the RF input end. First and second ground plates are formed on the nitride or oxide film at both sides of the RF input end. A third ground plate is formed on the nitride or oxide film to be connected with the heating resistor and electrically connected with the first and second ground plates. The first and second output terminals are formed on the semiconductor substrate to be connected with the first and second thermocouple groups, respectively.