| KROHNE MESSTECHNIK GMBH Patent applications |
| Patent application number | Title | Published |
|---|
| 20120057170 | DEMODULATION METHOD - A demodulation method for a pseudo-heterodyne signal, wherein the pseudo-heterodyne signal has a phase-modulated carrier signal and the pseudo-heterodyne signal is digitally sampled. A demodulation method at least partially avoids the disadvantages known from the prior art is implemented according to the invention in that the digitally sampled pseudo-heterodyne signal is subjected to a discrete Fourier transformation and at least one output Fourier coefficient featuring an amplitude and a phase is determined, an atan | 03-08-2012 |
| 20120057169 | DEFLECTION MEASURING DEVICE ACCORDING TO THE INTERFEROMETER PRINCIPLE - An interferometer type deflection measuring device having a radiation source, a first fiber-optic means forming a first light path, a second fiber-optic means forming a second light path, a deflection body and an evaluation circuit, the first and second fiber-optic means receiving radiation from the radiation source on an input side, and radiation guided in the first and second fiber-optic means, respectively, being brought together on an output side with interference radiation being conveyed to the evaluation circuit for evaluation. The first fiber-optic means and the second fiber-optic means are arranged only on the deflection body, at least one of the first and second fiber-optic means being connected on the input side to the beam source with a single feed optical fiber and at least one of the first and second fiber-optic means being connected on the output side to the evaluation circuit by a single evaluation optical fiber. | 03-08-2012 |
| 20120038345 | POWER SUPPLY DEVICE - A power supply device for intrinsically safe power supply of an intrinsically safe load circuit includes a voltage source, a power-limiting circuit including at least two controllable semiconductor devices, a current-limiting circuit including at least one resistor, and a load circuit connector connected to the load circuit. The power-limiting circuit and the current-limiting circuit are active between the voltage source and the load circuit connector. The resistor includes a resistance value that suffices to limit a short circuit current to a current without danger of a spark ignition. | 02-16-2012 |
| 20120032822 | CONTROL PANEL FOR A MEASURING DEVICE - A control panel for a measuring device with a housing and a control and inspection window. The control panel includes at least one optical key that is operable through the control and inspection window using a finger. The optical key includes a transmitting element and a receiving element. The control panel is constructed such that it allows reliable and quick control even when the housing is open and the control panel is exposed. Specifically, the control panel has at least one corresponding finger-operable mechanical key in addition to the finger-operable optical key in order to reliably and quickly control the measuring device when a predefined control distance for the optical key is no longer ensured by the control and inspection window of the housing. | 02-09-2012 |
| 20110259121 | CORIOLIS MASS FLOWMETER - A Coriolis mass flowmeter ( | 10-27-2011 |
| 20110252881 | SENSOR ARRANGEMENT FOR A CALORIMETRIC MASS FLOWMETER - A sensor arrangement including a probe and a bracket that are provided for a calorimetric mass flow meter for measuring the mass flow in a measuring tube. The probe is mounted in the bracket in such a manner that the probe is guided essentially without contact with a radial spacing through a probe recess a wall of the measuring tube and is positioned in a cross section of a flow-through area of the flow of the measuring tube. The bracket is designed in such a manner that the probe is thermally de-coupled from the measuring tube. The sensor arrangement for the calorimetric mass flow meter is capable of increasing the measuring accuracy and increasing the flexibility during operation. | 10-20-2011 |
| 20110140824 | PLANAR TRANSFORMER - A planar transformer suitable for intrinsically safe electronic circuits with a core, a first printed circuit board and a second printed circuit board. The first printed circuit board has a first winding and the second printed circuit board has a second winding. The planar transformer can be produced at a low cost and is compact, but is still suitable for connection to intrinsically safe operating circuits is implemented by at least one gap being asymmetrically split on the first printed circuit board and the second printed circuit board. | 06-16-2011 |
| 20110100120 | FILL LEVEL SWITCH AND SENSOR ELEMENT FOR A FILL LEVEL SWITCH - A fill level switch ( | 05-05-2011 |
| 20110006811 | FREQUENCY SYNTHESIZER FOR A LEVEL MEASURING DEVICE AND A LEVEL MEASURING DEVICE - A frequency synthesizer for a time base generator of a level measuring device which works according to the radar principle, with at least one first output for output of a first frequency signal, with at least one second output for output of a second frequency signal, and with a reference oscillator for producing a reference frequency signal, the first frequency signal and the second frequency signal having a small difference frequency relative to one another, the first frequency signal being producible by interaction of the reference oscillator with a direct digital synthesizer. The first frequency signal and second frequency signal can be generated with especially low noise by the second frequency signal being derived from the reference oscillator without interconnection of a direct digital synthesizer and the direct digital synthesizer being operated such that only a noise spectrum is produced which is at least partially minimized. | 01-13-2011 |
| 20100295745 | DIELECTRIC ANTENNA - Described and shown is a dielectric antenna ( | 11-25-2010 |
| 20100148824 | CIRCUIT ARRANGEMENT FOR PRODUCING SHORT ELECTRICAL PULSES - A circuit arrangement for producing short electrical pulses, including a logic gate ( | 06-17-2010 |
| 20100139417 | METHOD FOR OPERATING A RESONANCE-MEASURING SYSTEM AND A RESONANCE-MEASURING SYSTEM - A method for operating a resonance-measuring system, in particular, a Coriolis mass flowmeter, having at least one oscillation element, at least one oscillation driver and at least one oscillation sensor, the oscillation element being excited to oscillation in at least one control using at least one control loop by at least one oscillation driver being excited by at least one excitation signal and the excited oscillations of the oscillation element being detected by the oscillation sensors as at least one response signal. At least one set variable of the closed loop is varied in a pre-determined manner and by evaluating at least one resulting excitation signal and/or at least one resulting response signal with the help of a mathematical model of the resonance-measuring system, at least one parameter of the excited eigenform is selectively identified. | 06-10-2010 |
| 20100089635 | HOUSING FOR AN ELECTRIC OR ELECTRONIC DEVICE - A housing for an electric or electronic device has at least one receiving part for accommodating electric and/or electronic components, parts, component groups and parts groups in an interior thereof has at least one locking part for closing the receiving part, and having a bayonet connector for connecting the at least one locking part with the at least one receiving part. The bayonet connector has a first connector part on the locking part and a second connector part on the receiving part which engage each other in a connected position. One of the first and second connector parts has a base and head in respective planes running perpendicular to a direction of insertion of the connector parts and a diagonal surface running diagonally from the base toward a head, the base, diagonal surface and head being distributed alternately around the entirety periphery of the first connector part. | 04-15-2010 |
