Abstract: The invention concerns a method of performing a quantitative and/or qualitative determination of catalytic fines in fuel oil and a system suitable for determining catalytic fines in an oil using the method. The method comprises determining aluminum using NMR and quantitatively and/or qualitatively determining the catalytic fines based on the aluminum determination. The system comprises a NMR spectrometer, a digital memory storing a calibration map comprising calibrating data for calibrating NMR spectra obtained by the NMR spectrometer and a computer programmed to analyze the NMR spectra obtained by the NMR spectrometer using calibration map and performing at least one quantitative and/or qualitative catalytic fines determination.

Abstract: The invention concerns a method for quantitative determination of nitrogen present in the form of one or more nitrogen containing compounds and/or ions thereof in an aqueous fluid, the method includes subjecting at least a part of the aqueous fluid to an NMR reading including generating a 14N data having a 14N NMR data spectra and correlating the 14N NMR data to calibration data. A system suitable for carrying out the method as well as a moveable manure spreader including a system is also described.

Abstract: A measuring system for determination of at least one chemical property in an oil under transportation from a first container to a second container, where a pipe inlet is arranged to withdraw a sample part from the oil in flow and a sample handling arrangement is arranged for guiding a sample from the sample part into and out of at least one chemical property measuring instrument. The measuring system further includes a control computer unit connected to the sample handling arrangement and being programmed to performing a plurality of consecutive measuring cycles, each including i) guiding a sample from the sample part into the at least one chemical property measuring instrument, ii) performing a measurement of the at least one chemical property in the sample, and iii) withdrawing the sample from the at least one chemical property measuring instrument.

Abstract: The invention relates to a measuring system for determination of at least one chemical property and optionally one or more physically properties in an oil e.g. a bunker fuel or a lubricant under transportation from a first container e.g. a fuel supply tank to a second container e.g. a tank og a ship. The system comprises a pipe inlet arranged to continuously or stepwise withdraw a sample part from the oil in flow under transportation from said first container to said second container, a pipe outlet for discharging at least some of the sample part, at least one chemical property measuring instrument for measuring a chemical property in a sample of said sample part, a sample handling arrangement for guiding a sample from said sample part into and out of said at least one chemical property measuring instrument.

Abstract: The present invention relates to a sensor comprising least one sensor unit e.g. a cantilever. The sensor unit comprises a capture surface area and a piezoresistive detection system, for direct detection of stress change of the sensor unit when applying an electrical field over the piezoresistive element. The piezoresistive element has a longitudinal direction in the current direction and a transverse direction perpendicular there to. The longitudinal direction and the transverse direction each has a stress composant and a current composant. The piezoresistive element is of an anisotropic material, and is arranged so that the numerically value of the sum of the longitudinal piezoresistive coefficient ?1 and the transverse piezoresistive coefficient ?t along at least 25% of the length, of the piezoresistive element is at least 10?10 Pa?1×P, such as 2×10?10 Pa?1×P.

Abstract: A new type of diaphragm transducer comprising magnets to provide magnetic field strength in a planar region and a planar diaphragm located in the said planar region. The diaphragm has a plurality of conductors on its planar surface for inducing electromagnetic forces acting on theses conductors in said planar region when current flows through said conductors. The magnets are arranged in magnetic interaction with a magnetically conducting material, preferably soft iron, to conduct magnetic field from said magnets to said planar region.