Nuclear magnetic resonanace inspection apparatus and its method
AssigneeHitachi, Ltd.
InventorsYoshiki Murakami, Tetsuhiko Takahashi, Etsuji Yamamoto
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Abstract
This application describes a nuclear magnetic resonance inspection apparatus. In this apparatus, a nuclear magnetic resonance signal detected by a detection coil is wirelessly transmitted to a signal processing system. In another embodiment, the nuclear magnetic resonance signal is stored in a memory medium provided to the detection coil. This memory medium can be separated from the detection coil. The signal processing system reads out the nuclear magnetic resonance signal from the memory medium separated, and processes the signal.
Claims31
A nuclear magnetic resonance inspection apparatus comprising:
- an irradiation coil for irradiating a radio frequency magnetic field to an object to be inspected;
- a detection coil disposed in the vicinity of said object, for detecting a nuclear magnetic resonance signal from said object;
- analog-to-digital conversion means for sampling the nuclear magnetic resonance signal and converting a sampled signal to a digital signal;
- and
- transmission means for transmitting wirelessly said digital signal to a signal processor in which the digital data is executed.
A nuclear magnetic resonance inspection apparatus comprising:
- an irradiation coil for irradiating a radio frequency magnetic field to an object to be inspected;
- a detection probe including:
- a detection coil for detecting a nuclear magnetic resonance signal from said object;
- means for modulating the nuclear magnetic resonance signal;
- analog-to-digital conversion means for sampling the nuclear magnetic resonance signal modulated and converting a sampled signal to a digital signal;
- and
- means for transmitting wirelessly said digital signal;
- and
- a signal processor including:
- means for receiving said digital signal transmitted wirelessly;
- and
- means for processing the nuclear magnetic resonance signal.
A nuclear magnetic resonance inspection apparatus comprising:
- an irradiation coil for irradiating a radio frequency magnetic field to an object to be inspected;
- a detection probe including:
- a detection coil for detecting a nuclear magnetic resonance signal from said object;
- and
- means for writing the nuclear magnetic resonance signal detected from said detection coil into a recording memory medium, said recording memory medium being capable of being taken out from said detection probe;
- and
- a signal processor including:
- means for reading out the nuclear magnetic resonance signal from said recording memory medium;
- and
- means for processing a read out nuclear magnetic resonance signal.
A nuclear magnetic resonance inspection apparatus comprising:
- an irradiation coil for irradiating a radio frequency magnetic field to an object to be inspected;
- a detection probe including:
- a detection coil for detecting a nuclear magnetic resonance signal from said object;
- analog-to-digital conversion means for converting the nuclear magnetic resonance signal to a digital signal;
- means for processing the digital signal;
- and
- means for writing the digital signal processed into a recording memory medium, said recording memory medium being capable of being taken out from said detection probe;
- and
- means for reading and displaying the digital signal processed from said memory medium.
A nuclear magnetic resonance inspection method comprising the steps of:
- irradiating a radio frequency magnetic field to an object to be the inspected;
- detecting a nuclear magnetic resonance signal from said object by a detection coil;
- writing the nuclear magnetic resonance signal detected into a recording memory medium;
- removing said recording memory medium from said detection coil;
- and
- reading the nuclear magnetic resonance signal from said recording memory medium removed, and processing the nuclear magnetic resonance signal.
A nuclear magnetic resonance inspection method comprising the steps of:
- irradiating a radio frequency magnetic field to an object to be inspected;
- detecting a nuclear magnetic resonance signal from said object by a detection coil;
- modulating the nuclear magnetic resonance signal;
- converting a modulated signal from said modulating step to a digital signal:
- transmitting wirelessly said digital signal to a signal processing system;
- and
- processing said digital signal transmitted wirelessly in said signal processing system.
A detection probe comprising:
- a detection coil for detecting a nuclear magnetic resonance signal from said object;
- means for modulating the nuclear magnetic resonance signal;
- analog-to-digital conversion means for sampling the nuclear magnetic resonance signal modulated and converting a sampled signal to a digital signal;
- and
- means for transmitting wirelessly said digital signal.
A signal processor comprising:
- a signal processor including:
- means for receiving a digital signal transmitted wirelessly and corresponding to a nuclear magnetic resonance signal;
- and
- means for processing said nuclear magnetic resonance signal.
A detection probe comprising:
- a detection coil for detecting a nuclear magnetic resonance signal from said object;
- and
- means for writing the nuclear magnetic resonance signal detected from said detection coil into a recording memory medium, said recording memory medium being capable of being taken out from said detection probe.
Dependencies are inferred from the claim text.