什麼是狀態監測？

Condition monitoring (CM) is the process of measuring specific parameters of machinery (vibration, temperature, oil condition, etc.) to identify changes that indicate developing faults. It enables predictive maintenance — repairing equipment based on actual condition rather than fixed time intervals.

What does ISO 17359 cover?

ISO 17359 provides guidelines for the general procedures of condition monitoring and diagnostics of machines. It covers the process of establishing a CM program, selecting monitoring methods, setting alarm criteria, and determining diagnostic procedures.

Which monitoring method is best for bearing faults?

Vibration analysis is the primary method for bearing fault detection. Techniques include envelope analysis (high-frequency demodulation), shock pulse measurement (SPM), and acoustic emission. Oil analysis (particle counting, ferrography) provides complementary information.

When should I use thermography vs vibration analysis?

Vibration analysis excels at detecting mechanical faults (unbalance, misalignment, bearing wear, gear defects). Thermography is best for electrical faults (loose connections, overloaded circuits), insulation problems, and thermal anomalies. Many programs use both techniques together.

What is motor current signature analysis (MCSA)?

MCSA analyzes the current waveform of an electric motor to detect rotor bar defects, air gap eccentricity, and load-related faults. It can be done non-invasively using a current clamp on the motor supply cable, making it useful for motors in hazardous or difficult-to-access locations.

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狀態監測方法選擇器

根據 ISO 17359 選擇合適的狀態監測技術。選擇機器類型與待檢測故障 — 獲取推薦的方法、感測器與參數。

ISO 17359預測性維護CBM

機器類型

待檢測故障

常見情境

推薦方法

狀態監測技術

方法	標準	最適用於
振動分析	ISO 10816, ISO 20816	不平衡、不對心、軸承、齒輪、鬆動
熱成像	ISO 18434	電氣故障、絕緣、過熱、疏水閥
油液分析	ISO 4406, ISO 4407	軸承磨損、污染、齒輪磨損
聲發射	ISO 22096	早期軸承故障、裂紋檢測、洩漏
電流分析	IEC 60034	轉子導條缺陷、偏心、電氣故障
超聲波	—	洩漏、軸承潤滑、電氣放電

ISO 17359 建議根據特定故障類型、機器關鍵性與成本效益選擇監測方法。組合使用多種方法可提供最可靠的故障檢測。

狀態監測方法選擇器 | ISO 17359

推薦方法

狀態監測技術

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