Nmr asic
AssigneeSchlumberger Technology Corporation
InventorsYi-Qiao Song, Soumyajit Mandal, Yiqiao Tang, David McCowan
Life of this patent
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Abstract
An NMR system includes a radio frequency (RF) NMR application-specific integrated circuit (ASIC) chip configured to generate an RF output signal and a rectifier configured to receive the RF output signal and convert the RF output signal to (a) a direct current (DC) pulsed field gradient (PFG) signal or (b) a DC trigger signal for at least one of (i) activating at least one component of an NMR system external to the NMR RF ASIC chip and (ii) synchronizing at least one component of an NMR system external to the NMR RF ASIC chip.
Claims13
An NMR application-specific integrated circuit, comprising:
- an on-chip pulse sequence generator configured to generate NMR pulse sequences;
- an on-chip transmitter configured to transmit the NMR pulse sequences generated by the on-chip pulse sequence generator;
- an on-chip receiver configured to receive signals corresponding to an excitation period of the NMR pulse sequences generated by the on-chip pulse sequence generator;
- an on-chip pulse field gradient unit configured to generate pulses defining a pulse field gradient;
- at least one of (a) an on-chip external trigger configured to provide trigger signals that can be sent to an external device and (b) an on-chip external input configured to receive input from a device external to the NMR application-specific integrated circuit;
- and
- an on-chip configuration memory configured to store values of the configuration of the NMR application-specific integrated circuit.
A method comprising:
- generating a radio frequency (RF) signal using an NMR RF application-specific integrated circuit (ASIC) chip;
- and
- converting the RF signal into a direct current (DC) pulsed field gradient (PFG).
A method comprising:
- generating a radio frequency (RF) signal using an NMR RF application-specific integrated circuit (ASIC) chip;
- converting the RF signal to a direct current (DC) trigger pulse;
- and
- at least one of (a) activating at least one component of an NMR system external to the NMR RF ASIC chip and (b) synchronizing at least one component of an NMR system external to the NMR RF ASIC chip.
An NMR system comprising:
- a radio frequency (RF) NMR application-specific integrated circuit (ASIC) chip configured to generate an RF output signal;
- and
- a rectifier configured to receive the RF output signal and convert the RF output signal to (a) a direct current (DC) pulsed field gradient (PFG) signal or (b) a DC trigger signal for at least one of (i) activating at least one component of an NMR system external to the NMR RF ASIC chip and (ii) synchronizing at least one component of an NMR system external to the NMR RF ASIC chip.
Dependencies are inferred from the claim text.