Variable gain amplification for linearization of NMR signals
AssigneeWaveguide Corporation
InventorSebastian Patulea
Life of this patent
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Abstract
Various approaches of amplifying an NMR signal in response to a transmitted NMR pulse include estimating the characteristic time associated with the NMR signal; transmitting the NMR pulse to the sample and receiving the NMR signal therefrom; and applying a time-dependent amplifier gain to the received NMR signal based at least in part on the estimated characteristic time.
Claims6
A method of amplifying nuclear magnetic resonance (NMR) signal in response to a transmitted NMR pulse, the method comprising:
- estimating a characteristic time associated with the NMR signal;
- transmitting the NMR pulse to a sample and receiving the NMR signal therefrom;
- and
- applying a time-dependent amplifier gain to the received NMR signal based at least in part on the estimated characteristic time,
- wherein the time-dependent amplifier gain comprises a series of discrete gain increases, and
- wherein the series of discrete gain increases comprises step-wise gains.
A nuclear magnetic resonance (NMR) apparatus comprising:
- a transceiver for transmitting an NMR pulse to a sample and receiving an NMR signal therefrom;
- and
- a controller configured to:
- (i) estimate a characteristic time associated with the NMR signal;
- (ii) cause the transceiver to transmit the NMR pulse to the sample and receive the NMR signal therefrom;
- and
- (iii) cause a time-dependent amplifier gain to be applied to the received NMR signal based at least in part on the estimated characteristic time,
- wherein the time-dependent amplifier gain comprises a series of discrete gain increases, and
- wherein the series of discrete gain increases comprises step-wise gains.
A method of dynamically varying gain amplification of received nuclear magnetic resonance (NMR) signals in response to transmitted NMR pulses, each received NMR signal corresponding to a transmitted NMR pulse, the method comprising:
- (i) transmitting a first one of the NMR pulses to a sample and receiving therefrom a first one of the NMR signals;
- (ii) determining a characteristic time associated with the first one of the NMR signals;
- (iii) transmitting a second one of the NMR pulses to the sample and receiving therefrom a second one of the NMR signals;
- and
- (iv) applying a time-dependent amplifier gain to the received second one of the NMR signals based at least in part on the determined characteristic time,
- wherein the time-dependent amplifier gain comprises a series of discrete gain increases, and
- wherein the series of discrete gain increases comprises step-wise gains.
A nuclear magnetic resonance (NMR) apparatus comprising:
- a transceiver for transmitting NMR pulses to a sample and receiving NMR signals therefrom, each NMR signal corresponding to a transmitted NMR pulse;
- and
- a controller configured to:
- (i) cause the transceiver to transmit a first one of the NMR pulses to the sample and receive therefrom the first one of the NMR signals;
- (ii) determine a characteristic time associated with the first one of the NMR signals;
- (iii) cause the transceiver to transmit a second one of the NMR pulses to the sample and receive therefrom the second one of the NMR signals;
- and
- (iv) cause the transceiver to apply a time-dependent amplifier gain to the received second one of the NMR signals based at least in part on the determined characteristic time,
- wherein the time-dependent amplifier gain comprises a series of discrete gain increases, and
- wherein the series of discrete gain increases comprises step-wise gains.
Dependencies are inferred from the claim text.