LA-20

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Vibration analysis of mechanical systems has become an essential part of diagnostics in the industry today. With the advancement in digital signal processing technology, relatively low cost vibration analyzers and energy harvesting accelerometers, it has become possible to assess the overall health of mechanical rotating equipment. The LA-20 vibration analyzer is one of the most comprehensive vibration analysis systems available in the market. This article discusses the application field and the working principle of the LA-20.

The LA-20 vibration analyzer is a portable vibration analyzer designed for industrial applications. It is specially designed for use in applications such as vibration monitoring and diagnostics for fans, pumps, motors, transmissions, and other rotating and reciprocating machinery. The LA-20 supports up to 8 channels and 16 user-selectable ranges. It also supports both full-bridge and half-bridge sensors. The battery operated, lightweight, and robust build of the LA-20 makes it an ideal device to be used in rugged condition.

The LA-20 can be used to measure acceleration, velocity, and displacement. It can measure vibration coupled with other parameters like temperature, pressure, RPM, and other analog signals. The device can observe the motion of machinery and detect possible faults or damages. The built-in wire connection resistors in the device reduce environmental noise for more accurate vibration measurements. It allows simultaneous data acquisition of up to 8 channels of data. This feature makes it easier to troubleshoot rotating equipment.

The working principle of the LA-20 is based on the “frequency response technique”. This technique involves the excitation of the target system at various frequencies in order to obtain a frequency response curve. This curve gives the user a clear indication of the target system\'s resonance characteristics. By analyzing this curve, the user can identify the resonant frequency of the system, its modal frequency and damping ratio. The device can also analyze the motion of the structure and come up with a more detailed assessment of the system

In addition to vibration analysis, the LA-20 can also be used to perform diagnostics on the electrical system of a rotating equipment. It can be used to monitor the values of the following electrical parameters: supply voltage, current, power factor, harmonics, frequency, and impedance. It can be used to detect any abnormal change in these values which might indicate the presence of a malfunctioning component in the electrical system.

In conclusion, the LA-20 vibration analyzer is an advanced device that can be used to measure, monitor and diagnose vibration related faults in industrial machinery. It can measure vibration along with other parameters like temperature, pressure, RPM, and other analog signals for an accurate assessment. Its working principle is based on the frequency response technique which helps it to provide more detailed information on the system. It can also be used to diagnose electrical system malfunctioning components or anomalies.

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