System and method for a nondestructive on-line testing of samples
First Claim
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1. A non-destructive on-line system for detecting a presence of a material a substance comprising:
- an MRI device comprising a tunable RF coil and a signal detector, said signal detector is configured for detecting frequency-dependent output signals as a function of a frequency variation of the RF tunable coil within a frequency range of an RF resonant frequency of a standard sample of said substance;
a flow conduit encompassed by said tunable RF coil and having an input duct and an output duct to allow a flow of said substance therethrough; and
a processing unit,wherein said processing unit is configured to;
receive said frequency-dependent output signals from said detector;
determine an impedance frequency variation from said frequency-dependent output signals and at least one operational parameter of the MRI device;
determine RF frequency variation of inductance and RF variation of reactance from said impedance frequency variation; and
compare at least one of the RF frequency variation of the inductance and the RF frequency variation of the electrical reactance with an RF frequency variation of a corresponding inductance or reactance of said standard sample of said substance such that said comparison determines said material content of said substance.
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Abstract
A non-destructive on-line system for detecting a presence of a material in a sample of a substance, including: an MRI device; a flow conduit encompassed by the tunable RF coil of the MRI device and having an input duct and an output duct; a flow of the sample through the flow conduit; a signal detector for detecting frequency-dependent output signals from the MRI device as a function of a frequency variation of the RF tunable coil within a frequency range of an RF resonant frequency of a standard sample of the substance, and a processing unit.
4 Citations
14 Claims
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1. A non-destructive on-line system for detecting a presence of a material a substance comprising:
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an MRI device comprising a tunable RF coil and a signal detector, said signal detector is configured for detecting frequency-dependent output signals as a function of a frequency variation of the RF tunable coil within a frequency range of an RF resonant frequency of a standard sample of said substance; a flow conduit encompassed by said tunable RF coil and having an input duct and an output duct to allow a flow of said substance therethrough; and a processing unit, wherein said processing unit is configured to; receive said frequency-dependent output signals from said detector; determine an impedance frequency variation from said frequency-dependent output signals and at least one operational parameter of the MRI device; determine RF frequency variation of inductance and RF variation of reactance from said impedance frequency variation; and compare at least one of the RF frequency variation of the inductance and the RF frequency variation of the electrical reactance with an RF frequency variation of a corresponding inductance or reactance of said standard sample of said substance such that said comparison determines said material content of said substance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A non-destructive on-line method for detecting a material in a sample of a substance comprising:
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providing an MRI device comprising a tunable RF coil; providing a flow conduit encompassed by the tunable RF coil of said MRI device; providing a flow of said sample through said flow conduit; detecting frequency-dependent output signals from said MRI device as a function of a frequency variation of the RF tunable coil within a frequency range of an RF resonant frequency of a standard sample of said substance, and determining an impedance frequency variation from said frequency-dependent output signals and at least one predetermined MRI operational parameter; determining an RF frequency variation of inductance and/or reactance of said substance from said impedance frequency variation; comparing said RF frequency variation of said inductance and/or reactance of said substance with an RF frequency variation of a corresponding inductance and/or reactance of the standard sample of said substance, wherein said comparison determines said material content of said sample.
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14. A non-destructive on-line system for detecting a presence of a material in a sample of a substance comprising:
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an MRI device comprising a tunable RF coil and a signal detector, said signal detector is configured for detecting frequency-dependent output signals as a function of a frequency variation of the RF tunable coil within a frequency range of an RF resonant frequency of a standard sample of said substance; a container encompassed by said tunable RF coil containing said sample of a substance; and a processing unit, wherein said processing unit is configured to; receive said frequency-dependent output signals from said detector; determine an impedance frequency variation from said frequency-dependent output signals and at least one operational parameter of the MRI device; determine RF frequency variation of inductance and RF variation of reactance from said impedance frequency variation; and compare at least one of the RF frequency variation of the inductance and the RF frequency variation of the electrical reactance with an RF frequency variation of a corresponding inductance or reactance of said standard sample of said substance such that said comparison determines said material content of said sample of a substance.
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Specification