Multi-function data acquisition system and method
First Claim
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1. A method of acquiring data;
- said method comprising;
receiving an input signal to be analyzed from a transmission line;
amplifying a signal representative of said input signal using wideband variable gain amplifier circuitry; and
selectively sampling results of said amplifying using wideband high speed sampler circuitry in accordance with a selected sampling mode.
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Abstract
A system and method of data acquisition for transmission line performance evaluation and fault detection applications may incorporate wideband topology from reception of signals to be analyzed through to a high speed analog to digital converter. In accordance with one aspect of the present invention, for example, wideband variable gain amplifier and attenuation circuitry may be employed in conjunction with high speed sampling circuitry to facilitate event detection in a transmission line or wire; this implementation additionally allows seamless integration of spectrum analysis functionality in a single data acquisition system.
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Citations
33 Claims
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1. A method of acquiring data;
- said method comprising;
receiving an input signal to be analyzed from a transmission line;
amplifying a signal representative of said input signal using wideband variable gain amplifier circuitry; and
selectively sampling results of said amplifying using wideband high speed sampler circuitry in accordance with a selected sampling mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- said method comprising;
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10. A data acquisition apparatus comprising:
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wideband coupling circuitry operable to receive an input signal in the 10 kHz-500 MHz frequency range from a transmission line;
wideband variable gain amplifier circuitry incorporating a high speed amplifier and operative to amplify a signal representative of said input signal;
wideband high speed sampler circuitry operative to sample output from said high speed amplifier; and
a processing unit coupled to said amplifier circuitry and to said sampler circuitry and operative to select an operating mode for said sampler circuitry. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A multi-function data acquisition system comprising:
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means for receiving an input signal to be analyzed from a transmission line;
a wideband variable gain amplifier coupled to said means for receiving and operative to amplify a signal representative of said input signal;
a wideband high speed sampler operative in accordance with a plurality of sampling modes; and
a processing unit operative to cause said sampler selectively to function in accordance with one of said plurality of sampling modes. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification