[Measurement System Example] Engine Comprehensive Evaluation System

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last updated：Apr 20, 2021

エルメック

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Provides methods for area determination, area addition, multiple level settings, and area determination, etc.!

The pre-shipment inspection items for the engine are quite complex, but among them, the inspection of engine noise and vibration is one important item. According to different engine RPM conditions, abnormal noise measurement and judgment are performed. This system is a PC measurement system, so it has intelligent features. When an NG (No Good) judgment is made, if the cause has already been identified based on the frequency range or combination of counts, the detected NG data is logically guided to display the cause in words. Customers can build complex judgment logic according to actual situations and require more accurate judgment results. *For more details, please refer to the PDF materials or feel free to contact us.*

Related Link - https://www.elmec-gms.com/archives/case/536

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basic information

【System Configuration】 ■ Sensors are fixed at five locations: right head, right block, left head, left block, and chain of the engine. ■ The engine is operated, and vibration signals are detected from the sensors. ■ The signals are amplified by a charge amplifier and then input to an A/D converter through a low-pass filter. ■ The sound and vibration analysis software captures and analyzes sound and vibration data based on pre-set test patterns, notifying the results to a human and saving them on a computer. ■ Up to 16 bands can be set, with judgment items such as the number of levels (patented) for each band, as well as maximum, minimum, average values, and standard deviation. ■ There are functions for saving measurement results, searching, statistics, and printing, and test data for all shipped engines is stored. *For more details, please refer to the PDF document or feel free to contact us.