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What 2 instruments are used to measure the vibration amplitude and phase?
Depending on the quantity measured, a vibration measuring instrument is called a vibrometer, a velocity meter, an accelerometer, a phase meter, or a frequency meter. If the instrument is designed to record the measured quantity, then the suffix meter is to be replaced by graph [10.1].
What is a hard drive vibration?
Platter wobble – Caused by a slight imbalance in the rotating platters. Thus a rotational force is applied to the HDD body. Although the HDD body is massive relative to the head and arm, the reaction force is sufficient to slightly move the HDD, causing vibration in the X-Y plane.
How sensitive are hard drives to vibration?
The hard drive is not particularly sensitive to vibration — vibration will destroy any piece of electronics over time, but drives produce their own vibration and hence are “beefed up” a bit. And laptop drives even more. The real limit with hard drives is peak G force.
What can I do about the vibration on my hard drive?
Fan Vibration – Fans are a source of vibration but good quality balanced fans have less vibration and a large heavy solidly built server, such as our 45 Drives’ Storinator, will reduce fan vibration. If the manufacturer pays attention, fan vibration can be well under the threshold that HDD’s can handle.
What are the different types of vibration sensors?
Sensors used to measure vibration come in three basic types: displacement, velocity, and acceleration. Displacement sensors measure changes in distance between a machine’s rotating element and its stationary housing (frame).
What kind of vibration sensor does an accelerometer use?
Piezoelectric Vibration Sensor (Accelerometer) A piezoelectric vibration sensor (also known as piezo sensors) use the effect of mechanical strain caused by high-frequency motion of the equipment to detect acceleration and, hence, vibration.
What kind of equipment is used to measure vibration?
In fact, any electronic test equipment capable of analyzing the voltage signal output by the proximitor may be used to analyze the machine’s vibration: oscilloscopes, spectrum analyzers, peak-indicating voltmeters, RMS-indicating voltmeters, etc.