LOW POWER VIBRATION SENSOR AND WIRELESS TRANSMITTER SYSTEM
First Claim
1. A measurement instrument comprising:
- a. a sensor circuit for sensing a parameter of a machine and producing a dynamic signal based on the sensed parameter;
b. an analog to digital converter for receiving the dynamic signal and for converting the dynamic signal to a digital format producing a digital signal having a plurality of data points;
C. a processor connected to receive the digital signal and for determining a level corresponding to a peak of the digital signal over a predetermined range of data points of the digital signal and for producing level data in a control protocol, the level data corresponding to the determined level;
d. a power supply connected to power the processor and controlled by the processor to manage efficiently power consumption; and
e. a communication module for communicating the level data in a control protocol network.
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Accused Products
Abstract
A low power vibration sensor and wireless transmitter system has one or more sensors that sense parameters of a machine including vibration and produces dynamic signals representing the sensed parameters. The system converts the signals to a digital format, digitally filters the signals, and processes the signals. A processor determines a plurality of levels, which represent the characteristics of the signal such as the peak value of a predetermined set of data points of the digital signal. Together, the levels comprise a PeakVue waveform. The processor determines the peak level value for the PeakVue waveform. Also, a true root-mean-square is calculated as the signal is received at the processor. The peak level and the RMS value are communicated wirelessly by a communication module to a control protocol network such as a daisy chain HART or Fieldbus protocol network. The system power supply and the communication module power supply are separate and allow for low power operation.
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Citations
21 Claims
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1. A measurement instrument comprising:
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a. a sensor circuit for sensing a parameter of a machine and producing a dynamic signal based on the sensed parameter; b. an analog to digital converter for receiving the dynamic signal and for converting the dynamic signal to a digital format producing a digital signal having a plurality of data points; C. a processor connected to receive the digital signal and for determining a level corresponding to a peak of the digital signal over a predetermined range of data points of the digital signal and for producing level data in a control protocol, the level data corresponding to the determined level; d. a power supply connected to power the processor and controlled by the processor to manage efficiently power consumption; and e. a communication module for communicating the level data in a control protocol network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A measurement instrument comprising:
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a. a sensor circuit for sensing a parameter of a machine and producing a dynamic signal based on the sensed parameter; b. an analog to digital converter connected to receive the dynamic signal and for converting the dynamic signal to a digital format producing a digital signal; and c. a processor connected to the analog to digital converter and for receiving the digital signal and determining a true root-mean-square value representing a condition of the machine; d. a power supply connected to the processor and controlled by the processor to minimize power consumption, the power supply for powering the processor, the sensor, and the analog to digital converter; and e. a communication module connected to the processor, the communication module comprising; i. a communication processor for controlling the communication module and communicating the true root-mean-square value to the control protocol network and ii. a communication power supply connected to the communication processor and for powering the communication processor. - View Dependent Claims (17)
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18. A vibration measurement instrument comprising:
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a. a vibration sensor circuit for sensing vibration of a machine and producing a dynamic signal based on the vibration of the machine; b. an analog to digital converter connected to receive the dynamic signal and for converting the dynamic signal to a digital format producing a digital signal; c. a processor connected to receive the digital signal and for analyzing the digital signal producing vibration data; d. a power supply connected to power the processor; and e. a communication module connected to wirelessly communicate the vibration data to a control protocol network, the communication module comprising; i. a communication processor for controlling the communication module; ii. a communication power supply connected to power the communication processor; and iii. an antenna connected to the communication processor and for wirelessly communicating the vibration data to the control protocol network. - View Dependent Claims (19, 20, 21)
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Specification