Do 500 mV/g sensors just have more internal electronic gain than a general purpose (100 mV/g) sensor?
No. A sensor with additional electronic gain will produce the desired effect of increasing the amplitude of vibration output of the low level signal. However, this technique will also produce the undesired effect of increasing the level of the noise within the sensor. The only technique to increase the sensitivity without increasing the noise is to mechanically gain the signals. Mechanical gain is accomplished by increasing the sensor mass (low frequency sensors are generally heavier than other sensors) and /or using a higher output sensing crystal. All Wilcoxon low frequency, high output sensors use mechanical gain.
No. A sensor with additional electronic gain will produce the desired effect of increasing the amplitude of vibration output of the low level signal. However, this technique will also produce the undesired effect of increasing the level of the noise within the sensor. The only technique to increase the sensitivity without increasing the noise is to mechanically gain the signals. Mechanical gain is accomplished by increasing the sensor mass (low frequency sensors are generally heavier than other sensors) and /or using a higher output sensing crystal. All Wilcoxon Research low frequency, high output sensors use mechanical gain.
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