What is vibration phase angle?

Phase angle describes the timing relationship between a vibration signal and a reference. It is measured in degrees (0–360°) and indicates where in the rotation cycle the peak vibration occurs. Phase is critical for balancing and diagnosing machine faults.

How do I measure phase angle?

Phase is measured using a tachometer (keyphasor) as a reference, combined with a vibration sensor. The phase angle is the angular difference between the tachometer pulse and the peak of the 1× vibration signal.

What is the vector sum of two vibration signals?

The vector sum combines two vibration signals (each with amplitude and phase) into a single resultant vector. It uses the formula: add the x-components and y-components separately, then calculate the resultant amplitude and phase.

Why is relative phase important in balancing?

In single-plane balancing, the phase shift between the original vibration and the trial-weight run indicates the angular correction needed. A 180° phase shift means the correction weight should be placed opposite to the trial weight.

What does 0° vs 180° phase mean?

0° phase between two measurement points means the points move in the same direction simultaneously (in-phase, common with unbalance). 180° means they move in opposite directions (out-of-phase, typical of misalignment or a rotor operating above its critical speed).

मोफत अभियांत्रिकी साधन — #018

कंपन फेज अँगल कॅल्क्युलेटर

दोन कंपन सिग्नल्सचा सापेक्ष फेज, व्हेक्टर बेरिज आणि व्हेक्टर फरक गणना करा. प्रत्येक सिग्नलसाठी amplitude आणि phase प्रविष्ट करा.

व्हेक्टर बेरिजव्हेक्टर फरकसापेक्ष फेज

Results

सापेक्ष फेज कोन

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व्हेक्टर बेरिज (आयाम)

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व्हेक्टर बेरिज (फेज)

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व्हेक्टर फरक (आयाम)

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व्हेक्टर फरक (फेज)

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सदिश प्रतिनिधित्व

प्रत्येक कंपन सिग्नल हा V = A∠φ असा व्हेक्टर असतो, ज्याचे कार्टेशियन घटक असे:

व्हेक्टर बेरिज & फरक

सापेक्ष फेज

दोन सिग्नलमधील सापेक्ष फेज कोन:

व्यावहारिक उदाहरण

उदाहरण — बॅलन्सिंग रन तुलना

सिग्नल 1: 5.2 ∠45° → x₁ = 3.677, y₁ = 3.677

सिग्नल 2: 3.8 ∠200° → x₂ = −3.571, y₂ = −1.300

व्हेक्टर फरक: Δx = 7.248, Δy = 4.977 → |ΔV| = 8.79 ∠34.4°

सापेक्ष फेज: |200° − 45°| = 155°

ℹ️ टिप: single-plane balancing मध्ये original run आणि trial-weight run यांमधील व्हेक्टर फरक फक्त trial weight चा परिणाम दर्शवतो.

कंपन फेज कोन कॅल्क्युलेटर | मोफत व्हेक्टर टूल

Published by Nikolai Shelkovenko on फेब्रुवारी 15, 2026 मार्च 5, 2026

Results

सदिश प्रतिनिधित्व

व्हेक्टर बेरिज & फरक

सापेक्ष फेज

व्यावहारिक उदाहरण

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