Magnetic resonance spectrometer

Details Magnetic resonance spectrometer Magnetic resonance spectrometer

1989-03-20

1990-08-14

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324312, 324322, G01R 3320

Patent

active

049490400

ABSTRACT:
A magnetic resonance spectrometer in which an analog-to-digital converter in the receiving branch converts the spin resonance signals, or a spin resonance signal transposed to a lower frequency range, into a digital signal, and in which a Fourier transformation circuit is located in a signal path subsequent to the analog-to-digital converter. The signal path between the analog-to-digital converter and the Fourier transformation circuit includes at least one combination of a digital filter and a sampling frequency reducing circuit. The output signal of the reducing circuit has sampling frequency which has been reduced by an integer factor with respect to its input signal and, the reduced sampling frequency is a non-integer factor lower than the frequency of the signal on the output of the digital filter.

REFERENCES:
patent: Re32712 (1988-07-01), Likes
patent: 4567439 (1986-01-01), McGregor
patent: 4614907 (1986-09-01), Nagayama
patent: 4673880 (1987-06-01), Compton
patent: 4733184 (1988-03-01), McKinnon
patent: 4743851 (1988-05-01), Lim et al.
patent: 4814709 (1989-03-01), Takeda et al.

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