Signal analyzer with signal conditioners
First Claim
1. An analyzer for monitoring parameters of a machine including machine vibration comprising:
- a. A user input interface for receiving and transmitting a user input, b. At least one analog input for receiving a raw analog signal having a magnitude, c. A conditioning circuit connected to the analog input for receiving and processing the raw analog signal and producing a conditioned analog signal, the conditioned analog signal being produced from the raw analog signal based on predetermined criteria, the predetermined criteria including an input limit which is satisfied when the raw analog signal satisfies the input limit, d. A data processor for receiving and processing the user input and controlling the analyzer based in part on the user input, e. An output for producing an output signal at least in part corresponding to the conditioned analog signal, f. The analog input including at least a tachometer input for receiving a raw tachometer signal having a magnitude and a plurality of pulses having a cycle time corresponding to a speed of the machine, g. The conditioning circuit including at least a qualifying circuit connected to the tachometer input for receiving and processing the raw tachometer signal and producing a qualified tachometer signal, the qualified tachometer signal being produced when the raw tachometer signal is qualified based on predetermined criteria, and h. The output for producing an output signal corresponding to the qualified tachometer signal.
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Accused Products
Abstract
The present invention is an apparatus for detecting machine parameters including vibration, producing signal corresponding to the parameters and conditioning the signals by means of predetermined criteria such as amplitude and time criteria. Routes may be input to the analyzer with settings that govern part of the conditioning for individual machines. The predetermined criteria also may include an input limit criterion which ensures the safety of the analyzer circuitry by indicating attenuation levels for incoming signals. The analyzer is also capable of two channel analysis of input signals including a summing analysis. The analyzer has thumb operated controls for easy operation in harsh environments.
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Citations
22 Claims
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1. An analyzer for monitoring parameters of a machine including machine vibration comprising:
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a. A user input interface for receiving and transmitting a user input, b. At least one analog input for receiving a raw analog signal having a magnitude, c. A conditioning circuit connected to the analog input for receiving and processing the raw analog signal and producing a conditioned analog signal, the conditioned analog signal being produced from the raw analog signal based on predetermined criteria, the predetermined criteria including an input limit which is satisfied when the raw analog signal satisfies the input limit, d. A data processor for receiving and processing the user input and controlling the analyzer based in part on the user input, e. An output for producing an output signal at least in part corresponding to the conditioned analog signal, f. The analog input including at least a tachometer input for receiving a raw tachometer signal having a magnitude and a plurality of pulses having a cycle time corresponding to a speed of the machine, g. The conditioning circuit including at least a qualifying circuit connected to the tachometer input for receiving and processing the raw tachometer signal and producing a qualified tachometer signal, the qualified tachometer signal being produced when the raw tachometer signal is qualified based on predetermined criteria, and h. The output for producing an output signal corresponding to the qualified tachometer signal. - View Dependent Claims (2, 3, 4, 5)
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6. An analyzer for monitoring parameters of a machine including machine vibration, comprising:
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a. A user input interface for receiving and transmitting a user input, b. At least one analog input for receiving a raw analog signal having a magnitude, c. A conditioning circuit connected to the analog input for receiving and processing the raw analog signal and producing a conditioned analog signal, the conditioned analog signal being produced from the raw analog signal based on predetermined criteria, the predetermined criteria including an input limit which is satisfied when the raw analog signal is below the input limit, the conditioning circuit having a selectable attenuator circuit for attenuating the raw analog signal when the input limit is exceeded, d. A data processor for receiving and processing the user input and controlling the analyzer based in part on the user input, implementing the predetermined criteria, controlling the selectable attenuator circuit, and performing analysis of the conditioned analog signal, e. An output for producing an output signal at least in part corresponding to the conditioned analog signal. - View Dependent Claims (7, 8, 9, 10)
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11. An analyzer for monitoring parameters of a machine including machine vibration comprising:
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a. A user input interface for receiving and transmitting a user input, b. At least one analog input for receiving a raw analog signal having a magnitude, c. A conditioning circuit connected to the analog input for receiving and processing the raw analog signal and producing a conditioned analog signal, the conditioned analog signal being produced when the raw analog signal is conditioned based on predetermined criteria, the predetermined criteria including a machine amplitude criterion, the machine amplitude criterion being part of the user input and corresponding to a predetermined amplifier gain, the predetermined amplifier gain corresponding to the machine and being stored in a memory, d. A data processor for receiving and processing the user input and controlling the analyzer based in part on the user input, implementing the predetermined criteria, selecting and implementing the predetermined amplifier gain based on the user input, and performing analysis of the conditioned analog signal, and e. An output for producing an output signal corresponding to at least the conditioned analog signal. - View Dependent Claims (12, 13, 14, 15)
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16. An analyzer for monitoring a machine comprising:
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a. A user input interface for receiving and transmitting a user input, b. A first analog input for receiving a first raw analog signal having a first magnitude, c. A second analog input for receiving a second raw analog signal having a second magnitude, d. A first conditioning circuit connected to the first and second analog inputs for receiving and processing the first and second raw analog signals and producing a first conditioned analog signal, the first conditioned analog signal being produced from at least one of the first and second raw analog signals based on a first predetermined criteria, the first predetermined criteria including a first machine amplitude criterion, the first machine amplitude criterion being part of the user input and corresponding to a predetermined first channel amplifier gain, the predetermined first channel amplifier gain being stored in a memory, e. A second conditioning circuit connected to the first and second analog inputs for receiving and processing the first and second raw analog signals and producing a second conditioned analog signal, the second conditioned analog signal being produced from at least one of the first and second raw analog signals based on a second predetermined criteria, the second predetermined criteria including the second machine amplitude criterion, the second machine amplitude criterion being part of the user input and corresponding to a predetermined second channel amplifier gain, the predetermined second channel amplifier gain being stored in the memory, f. A data processor for receiving and processing the user input and controlling the analyzer based in part on the user input, implementing the predetermined criteria, which includes, selecting and implementing the predetermined first channel amplifier gain and the predetermined second channel amplifier gain, and performing analysis based on the first and second conditioned analog signals, and g. An output for producing an output signal corresponding to at least one of the first and second conditioned analog signals. - View Dependent Claims (17, 18, 19)
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20. An analyzer for monitoring a machine comprising:
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a. A user input interface for receiving and transmitting a user input, b. A first analog input for receiving a first raw analog signal having a first magnitude, c. A second analog input for receiving a second raw analog signal having a second magnitude, d. A first conditioning circuit connected to the first and second analog inputs for receiving and processing at least one of the first and second raw analog signals and producing a first conditioned analog signal, the first conditioned analog signal being produced from at least one of the first and second raw analog signals based on a first predetermined criteria, e. A second conditioning circuit connected to the first and second analog inputs for receiving and processing at least one of the first and second raw analog signals and producing a second conditioned analog signal, the second conditioned analog signal being produced from at least one of the first and second raw analog signals based on a second predetermined criteria, f. A summing circuit for receiving the first and second conditioned signals, producing a summation signal, the summation signal corresponding to the addition of the first and second conditioned signals, and transmitting the summation signal, g. A data processor for receiving and processing the user input and controlling the analyzer based in part on the user input, implementing the predetermined criteria, which includes receiving and interpreting the user input and based on the user input, and performing analysis of the summation signal, and h. An output for producing an output signal corresponding to at least the summation signal. - View Dependent Claims (21, 22)
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Specification