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The SPM meter measures the shock pulses per second and then lowers its threshold so that two amplitude levels are discovered, first the decibel carpet value of
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The name, SPM, is derived from the technology that SPM Instrument developed and patented in the early 70s in Sweden. The Shock Pulse Method is the monitoring
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The shock pulse method was invented in the late 1960s. In rolling element bearings, there is a phenomenon where electric waves, or elastic waves
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12/16 · For those pieces of equipment that are so critical that periodic monitoring is not enough, then continuous monitoring needs to be considered. The Shock Pulse Method
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Shock Pulse Monitoring. SPM is an abbreviation for the Shock Pulse Method, which is a patented technique for using signals from rotating rolling bearings as the basis for efficient condition monitoring of machines. From the innovation of the method in 1969 it has now been further developed and broadened and is now a worldwide accepted
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Shock pulse measurement primarily serves the purpose of preventive maintenance of rolling element bearings. Regular measurements are used to monitor the installation, operating conditions (lubrication, loads, etc.) and the development of the lifetime expectancy (wear rate) of the bearings. These aim at making the best possible use of
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Simplified Bearing Condition Monitoring In this Webinar you will learn how the Shock Pulse Method is used to obtain a fast, easy, and reliable diagnosis of the operating condition of rolling element bearings. Derek Harrod Archer
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SPM is an abbreviation for the Shock Pulse Method, which is a patented technique for using signals from rolling element bearings as the basis for efficient condition monitoring of machines. Instant evaluation of bearing condition is given in an easily understood green-yellow-red color scheme.
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08/22 · The shock pulse method was invented in the late 1960s. In rolling element bearings, there is a phenomenon where electric waves, or elastic waves, or shock pulses, or
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Features of dBm/dBc Shock Pulse Monitoring. Easily understandable condition evaluation in red-yellow-green scales. Easy, fast and reliable diagnosis of bearing condition. Verifies the source of high shock pulse readings when used with SPM Spectrum. Bearings generate shocks in the interface between the loaded rolling element and the raceway
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Video tutorial showing how to take a shock pulse monitoring (SPM) measurement on a motor with no SPM bolt attached
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What is the Shock Pulse Method? Due to the sensitivity of the Shock Pulse Method, bearing lubrication condition is measurable through the signal monitored as dBc. The dBc is measured in the time wave signal of the shock pulse transducer. The filtered transducer signal reflects the pressure variation in the rolling interface of the bearing.
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12/16 · Shock Pulse Phase. When two pieces of metal, in motion, contact each other two interrelated yet distinct processes occur. On initial impact a shock or pressure wave develops
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The shock response spectrum is the peak absolute acceleration response of each SDOF system to the time history base input.3As an alternative, this function can be represented in terms of its peak positive and peak negative responses. The dimensions are peak response (G) versus natural frequency (Hz).
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The SPM HD Shock Pulse Monitoring is a further development of Shock Pulse Method (SPM); which can be used for easy, fast and reliable diagnosis of the operat
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The shock pulse meter counts the rate of occurrence (incoming shock pulses per second) and varies the measuring threshold until two amplitude levels are determined: The shock carpet level (approx. 200 incoming shocks per second). This level is displayed as dBc (decibel carpet value). The maximum level (greatest incoming shock under 2 seconds).
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Step 1 - Amplification. Shock Pulse signals are relatively small in amplitude and do not travel great distances. To amplify the small Shock Pulse signal the piezo electric crystal stacks, which are the actual element in an. accelerometer that generates signals, are constructed in such a fashion that they are excited by the 36 kilohertz.
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Methods and signal forms in vibration & shock pulse analysis. The best bearing ultrasound detector. SPM HD: the best way to detect bearing and gearboxes failures, even at very very low speed.. FFT analysis: often used for identifying the most common machine faults, such as misalignment or unbalance.. Order analysis: Variant of FFT analysis used for machines with variable RPM; instead of the
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08/24 · Back to: Shock Testing. The various classical shock pulses have unique purposes. Generally, each of these unipolar pulses excites a wide range of frequencies in a short period of time but in different ways. Classical pulses are primarily defined in acceleration; the shape of the acceleration waveform determines the frequencies and the degree to
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