BISOPE series 68 Relationship between vibration and noise and frequency

BISOPE series 68- Relationship between vibration and noise and frequency ------------------------------------------------------------------------------ The reason why we can distinguish between people and animals is because each has a different appearance, personality, voice, and scent, and the reason we can distinguish where we are now is because we have an address. Objects and spaces are the same, so we can distinguish and express their unique or current state, but before determining the size (amplitude), we must first distinguish between ‘what’ is big and small. In particular, what is comparable to a person’s ‘voice’ is the ‘frequency’ that appears in vibration and noise. Detecting this frequency is the ability of an experienced and skilled mechanic to solve a problem just by listening to the sound, and it can be compared to the frequency detection method of a measuring instrument. Frequency and period (time), wavelength and propagation speed The movemed. If you think that high frequencies are fast and low frequencies are slow, you are right. Also, high frequencies have short wavelengths, and low frequencies have long wavelengths. This relationship can be summarized as follows. ------ #vibration measuring instrument, #frequency setting, #Fmax, #maximum frequency, #sampling frequency, #sampling rate, #FFT, #3-axis vibration sensor, #acceleration sensor, #vibration education, #building vibration, #vibration measurement, #resonance analysis, #resonance measurement, #vibration monitoring, #vibration noise consulting www.kCBM.kr, https://blog.naver.com/vs72 , https://contents.premium.naver.com/bisope/visope

BISOPE series 9 Selection of appropriate sensor for condition monitoring...

BISOPE series 9- Selection of appropriate sensor for condition monitoring measurement (focusing on vibration sensor)

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For systems (online, offline) used for the purpose of efficiently performing maintenance (maintenance) by monitoring the state, reducing safety failures, and predicting the time of failure, a sensor that observes the state must be selected. There are many transducers (sensors) that convert these physical characteristics into electrical quantities, such as temperature sensors, pressure sensors, force sensors, flow sensors, position sensors, ultrasonic sensors, and current sensors. It is very important because it contains information, and it can be seen as the first gate that plays the role of the five senses (eyes, nose, mouth, touch, taste) that can check its stability or abnormal state. Therefore, if this sensor is not properly selected, the state cannot be represented and the alarm setting is also in error, so unnecessary and important values ​​cannot be trusted.

 

Considerations when selecting a vibration sensor for condition monitoring

The installation location and direction of the vibration sensor and the installation method are important, but first of all, the selection of the sensor is very important. It is basic to select a sensor according to the object to be monitored, but looking at other considerations, it can be summarized as follows.

 

1. It is not a high-speed, large-scale, critical facility, it is frequently disassembled and assembled, contains sufficient intermediate frequency, and it is convenient to select a magnet-attached acceleration sensor that measures the housing.

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