| 摘要 |
Processes and apparatuses are provided for contactless Nuclear magnetic resonance (“NMR”) spectrum acquiring and spectroscopic analysis and/or measuring or monitoring, in-line, in-situ and/or in real time, at least one composition or object under test of one or more solid, liquid, and/or gaseous substances and/or one or more bulk materials. One or more apparatus may include a resonance type impedance sensor having at least two coils, at least one coil of the at least two coils being at least one excitation coil, at least one other coil of the at least two coils being at least one sensing coil. The method(s) involve acquiring an NMR spectrum of an object under test while changing at least one of the frequency of an IR sensor and the intensity of the magnetic field applied to an object under test and/or sweeping intensity of the magnetic field applied to the object under test. |
| 主权项 |
1. An apparatus for contactless acquiring of a nuclear magnetic resonance (NMR) spectrum of an object under test and analyzing said spectrum in order for (A) detecting (B) measuring or (C) monitoring at least one chemical or biological component of said object under test in real time in-line or in-situ, comprising:
at least one resonance type impedance (IR) sensor which is a multicoil open-core or air-core inductor, said sensor comprising at least two coils, at least one coil of the at least two coils being at least one excitation coil connected to at least one alternating current source with frequency sweep, at least one other coil of the at least two coils being at least one sensing coil connected to at least one data processing system, wherein: (i) upon electrical connection to said current source, said at least one excitation coil is to propagate electromagnetic energy into said at least one sensing coil to generate a probing electromagnetic field at a Larmor frequency of the at least one chemical or biological component, (ii) said at least one sensing coil having intrinsic inductance L, intrinsic capacitance C, and intrinsic resistance R parameters to provide resonance conditions for measuring said probing electromagnetic energy drain from a resonant circuit represented by said sensing coil, caused by energy dissipation due to Larmor precession around an external magnetic field of a magnetic moment of particles of the at least one chemical or biological component of said object under test or at least a portion of said object under test being disposed within a sensing area of said at least one sensing coil at a predetermined frequency range defined by said Larmor frequency, and (iii) said at least one sensing coil uses only its intrinsic capacitance and is not connected to any capacitance means; at least one magnetic system providing a constant or variable homogeneous magnetic field; at least one radio frequency (RF) sweep generator, the at least one RF sweep generator being electrically connected to at least one said excitation coil; at least one data acquisition block, wherein the at least one data acquisition block is electrically connected to: (i) at least one said excitation coil, (ii) at least one said sensing coil, or (iii) to both said excitation and sensing coils; at least one calculation block connected to said: at least one data acquisition block, at least one magnetic system, and at least one RF sweep generator; at least one communication block connected to said at least one calculation block and to a computer in order to provide data interchange between said computer and said NMR apparatus; and at least one power supply electrically connected to said: at least one RF sweep generator, at least one calculation block, at least one magnetic system and at least one communication block. |
