Analog signal preprocessor
First Claim
1. A system for processing and analyzing an input signal comprising:
- an analog signal preprocessor for receiving and processing the input signal comprising;
a) at least one processing stage for receiving the input signal and processing the input signal, said processing stage having at least first and second operating modes determinative of the manner in which the input signal is to be processed by said processing stage, said processing stage for producing a first preprocessed signal when operating in said first operating mode and for producing a second preprocessed signal when operating in said second operating mode, said first preprocessed signal being different from said second preprocessed signal; and
b) preprocessor control means connected to said processing stage for monitoring and controlling said processing stage and selecting one of said operating modes of said processing stage to determine the manner in which the input signal is to be processed;
a main instrument for receiving and analyzing an output of said analog signal preprocessor to determine at least one characteristic of said preprocessed signal and for controlling said analog signal preprocessor comprising;
a) input means connected to said analog signal preprocessor for receiving at least one of said first and second preprocessed signals; and
b) master control means for producing at least processing stage control signals;
communication means for providing a communication link between said analog signal preprocessor and said main instrument and for transmitting at least said processing stage control signals from said master control means to said preprocessor control means; and
said preprocessor control means being responsive to said processing stage control signals to select at least one of said first and second operating modes for said processing stage.
1 Assignment
0 Petitions
Accused Products
Abstract
The specification describes a system for analyzing and processing an input analog signal. This invention provides an analog signal preprocessor which is operated in conjunction with a main instrument for measuring any defects or wear of machinery parts. The analog signal preprocessor operates to preprocess an analog signal by filtering and amplifying a signal from the analog signal to allow a more accurate reading by the main instrument. The preprocessor will adjust itself for optimum operation and communicate the operation modes to the main instrument. Also, the preprocessor can be addressed by the main instrument to setup the operation of the preprocessor according to a program or input entered into the main instrument.
-
Citations
14 Claims
-
1. A system for processing and analyzing an input signal comprising:
-
an analog signal preprocessor for receiving and processing the input signal comprising; a) at least one processing stage for receiving the input signal and processing the input signal, said processing stage having at least first and second operating modes determinative of the manner in which the input signal is to be processed by said processing stage, said processing stage for producing a first preprocessed signal when operating in said first operating mode and for producing a second preprocessed signal when operating in said second operating mode, said first preprocessed signal being different from said second preprocessed signal; and b) preprocessor control means connected to said processing stage for monitoring and controlling said processing stage and selecting one of said operating modes of said processing stage to determine the manner in which the input signal is to be processed; a main instrument for receiving and analyzing an output of said analog signal preprocessor to determine at least one characteristic of said preprocessed signal and for controlling said analog signal preprocessor comprising; a) input means connected to said analog signal preprocessor for receiving at least one of said first and second preprocessed signals; and b) master control means for producing at least processing stage control signals; communication means for providing a communication link between said analog signal preprocessor and said main instrument and for transmitting at least said processing stage control signals from said master control means to said preprocessor control means; and said preprocessor control means being responsive to said processing stage control signals to select at least one of said first and second operating modes for said processing stage. - View Dependent Claims (2, 3, 4)
-
-
5. A system for processing and analyzing an input signal comprising:
-
an analog signal preprocessor having a plurality of operating modes comprising; a) a preamplifier for receiving and preamplifying the analog signal in accordance with a selected gain determined by the operating mode and producing a preamplified analog signal; b) a filtering stage for receiving the preamplified analog signal, filtering a selected frequency range from the preamplified signal selected in accordance with a frequency range determined by the operating mode and producing a filtered analog signal; c) an envelope demodulator for receiving the filtered analog signal, rectifying the filtered analog signal, filtering the filtered analog signal and producing a preprocessed signal, said envelope demodulator either selected or de-selected in accordance with the operating mode; and d) preprocessor control means for controlling said operating modes of said analog signal preprocessor; a main instrument for receiving the preprocessed signal and analyzing the preprocessed signal to determine at least one characteristic of said signal, said main instrument having a master control means for controlling the analysis of the preprocessed signal and producing operating control signals; communication means for providing a communication link between said analog signal preprocessor and said main instrument and for transmitting at least said operating control signals to said preprocessor control means; and said preprocessor control means receiving the operating control signals and being responsive to the operating control signals to select at least one of said operating modes. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14)
-
Specification