摘要:
For detecting the temperature profile of a moving strip, strip is caused to pass in contact with a series of hollow rotors which are spaced across the strip width, and each of which is supported by a gas bearing. A thermal detector is located within each rotor to respond to the temperature of that part of the strip in contact with the rotor.The rotors may also be used to detect the variation in tension across the strip width. In that case, the thermal detectors can modify the tension measurements to compensate for thermal errors.
摘要:
A METHOD AND APARATUS FOR MEASURING THE MOISTURE CONTENT OF A MOVING MATERIAL BY USING A MOSITURE SENSING DEVICE WHICH SUPPLIES AN ELECTRICAL OUTPUT SIGNAL AS A FUNCTION OF THE VALUE OF THE MOISTURE BEING DETERMINED. A COVER OF NON-HYDROSCOPIC, THERMALLY INSULATING MATERIAL IS FIXEDLY DISPOSED SO AS TO BE SLIGHTLY SPACED FROM THE SURFACE OF THE MOVING MATERIAL. THE COVER IS PROVIDED WITH MEANS FOR CAUSING THE ATMOSPHERE PASSING BETWEEN THE COVER AND THE SURFACE OF THE MATERIAL TO BE DRAWN OFF AND MOVED PAST, AND INTO CONTACT WITH, THE MOISTURE SENSING DEVICE. THE ATMOSPHERE, BEFORE BEING MOVED PAST THE MOISTURE SENSING DEVICE, IS FIRST BROUGHT INTO CONTACT WITH A TEMPERATURE VARYING DEVICE FOR PERMITTING THE TEMPERATURE OF THE ATMOSPHERE TO BE SELECTIVELY VARIED.
摘要:
A temperature scanner with an extensible boom is mounted upon a mobile carriage for extending the scanner over a hot glass ribbon; a rotatable mirror is mounted near the end of the boom for conveying radiation from the glass surface to a temperaturerecording device aside from the glass ribbon.
摘要:
A pressure sensing unit comprises a membrane and two permanent magnets inside the cavity. One magnet is coupled to the membrane, and at least one magnet is free to oscillate with a rotational movement. At least one magnet is free to oscillate with a rotational movement. The oscillation takes place at a resonance frequency, which is a function of the sensed pressure, which pressure influences the spacing between the two permanent magnets. This oscillation frequency can be sensed remotely by measuring a magnetic field altered by the oscillation. The pressure sensing unit may be provided on a catheter or guidewire.
摘要:
The invention relates to a marker device and a tracking system for tracking the marker device, wherein the marker device comprises a rotationally oscillatable magnetic object and wherein the rotational oscillation is excitable by an external magnetic field, i.e. a magnetic field which is generated by a magnetic field providing unit 20, 31 that is located outside of the marker device. The rotational oscillation of the magnetic object induces a current in coils, wherein based on these induced currents the position and optionally also the orientation of the marker device is determined. This wireless kind of tracking can be carried out with relatively small marker devices, which can be placed, for instance, in a guidewire, the marker devices can be read out over a relatively large distance and it is possible to use a single marker device for six degrees of freedom localization.
摘要:
A method for determining the temperature of a metal strip (1) inside a cooling apparatus (4) of a hot rolling installation is implemented by an electronic device (12). This method includes acquiring a temperature measure of a strip portion at a current time instant; estimating, at the current time instant, a heat flux extracted from the strip portion inside the cooling apparatus according to a thermal model, and computing a strip portion temperature at a next time instant from the acquired temperature measure and the estimated extracted heat flux. The thermal model models an air cooling of the strip portion, a coolant header cooling of the strip portion by a coolant header and a remaining coolant cooling of the strip portion, wherein for the coolant header cooling the model models both an impingement cooling of the strip portion and a parallel flow cooling of the strip portion.
摘要:
The application describes embodiments including, e.g., a measurement device comprising: a casing, a first magnet arranged within the casing such that it is rotatable out of an equilibrium orientation responsive to an external magnetic torque acting on the first magnet, a second magnet to provide a restoring torque to force the first magnet back into the equilibrium orientation responsive to an external magnetic torque rotating the first magnet out of the equilibrium orientation, allowing for a rotational oscillation of the first magnet, which is excited by the external magnetic torque, with a resonant frequency, and a temperature sensitive magnetic material to modify the resonant frequency.
摘要:
A correction amount setting apparatus sets a correction amount for a sound wave sensor that is mounted on a vehicle and that detects an obstacle by transmitting and receiving a sound wave, the correction amount being a correction amount of a sensitivity to a reflection wave or a threshold for determining whether an obstacle is present. The correction amount setting apparatus includes: a correction amount calculator that acquires temperature information from a temperature sensor that detects an outside air temperature around the vehicle and, based on the temperature information, determines the correction amount; and a correction amount setter that determines and sets the correction amount for the sound wave sensor when the vehicle, from start of traveling, after having been accelerated to a speed higher than a reference speed, is decelerated to the reference speed.