Application : Quality control of power steering pump

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Ajay Kumar

Ajay Kumar

Assistant Manager - Application (Sales) Engineering at Ono Sokki India Pvt.Ltd

发布日期: 2021年3月11日

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• When a hydraulic pump for the automotive power steering is driven by a drive motor to generate hydraulic pressure, pulse pressure vibration occurs. The vibration detected by the NP-3418 accelerometer with built-in preamplifier and the rotation pulse of the drive motor detected by a rotation detector are sent to the CF-4700 FFT comparator. The peak hold function of the CF-4700 detects amplitude of the first to the n-th order component of rotation for pulse pressure vibration. ON/NG judgment power steering pump is made depending on the peak level.
• The block comparator function makes OK/NG judgment by the block area (maximum setup: 20 blocks) set in a certain frequency range and level range. Six kinds of judgment methods (level, peak level, peak max, insideMax, partial overall or area rate of content) are available for each block. Also the digital I/O function enables control via PLC using comparator output.
• The measurement results can be stored into a PC via LAN or RS-232C interface.
• This system can be used for different other applications on End of line testing eg. motors, pumps, horns, HVAC, engines, home appliances etc.

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