穩(wěn)態(tài)振動與疲勞測量模塊 

Vibration Fatigue Module

Vic-3D™穩(wěn)態(tài)振動與疲勞測量模塊允許使用低速攝像機在周期性高速事件中捕捉位移和應變測量結果。 這個附加模塊可以作為替代高速攝像機的低成本解決方案。 該模塊結合Vic-Snap™允許用戶使用加載驅(qū)動頻率的峰值、谷值或的中間相位信號對低速圖像采集器進行準確的觸發(fā)控制。

The Vic-3D™ Vibration Fatigue module allows low-speed cameras to capture displacement and strain measurements during periodic, high-speed events. This add-on module can provide a low-cost alternative to high-speed cameras. Vic-Snap allows the user to accurately trigger the low-speed cameras at peaks, valleys, or phase intervals in the driving frequency.

技術概述 Technology Overview

與標準Vic-3D系統(tǒng)一樣，該模塊可以同時在X/Y/Z軸上測量表面位移。 但是，通過使用集成的頻閃儀，振動疲勞模塊可以輕松而精確地捕獲周期性事件。

As with the standard Vic-3D system, surface displacements can be measured in three axes simultaneously. But, the Vibration Fatigue Module adds the ability to easily and precisely capture periodically recurring events, through the use of an integrated video stroboscope.

任何適用于傳統(tǒng)頻閃儀的應用都是該系統(tǒng)可測量的理想選擇。 這包括振動臺、發(fā)動機試驗臺和各種周期性機械循環(huán)。 但是，這個系統(tǒng)的功能遠遠超出了傳統(tǒng)頻閃儀的功能。 除了位移測量之外，系統(tǒng)還可以提供速度和加速度矢量，以及測量范圍內(nèi)每個點的完整拉格朗日應變張量。 因此，它可以同時測量振動和振動引起的表面應變。 由于這些測量結果直接來源于測試樣本的圖像，所以詳細的定量數(shù)據(jù)很容易覆蓋在原始圖像上，從而實現(xiàn)強大的可視化和分析。                                                                                   揚聲器定頻激勵試驗 Loudspeaker Testing

Any application which lends itself to the use of a conventional stroboscope is a good candidate for measurement with this system. This includes shaker tables, engine test stands, and a wide range of machinery. However, the capabilities of this system go far beyond those of the conventional stroboscope. In addition to displacement measurements, the system can provide velocity and acceleration vectors, as well as the complete Lagrangian strain tensor for every point within the field of measurement. Thus, it can be used to measure both vibration and vibration-induced surface strains simultaneously. Since these measurements are derived directly from images of the test specimen, detailed quantitative data is easily overlaid onto the original images, allowing powerful visualization and analysis.

Vic-3D振動模塊是一種替代高速攝像機的易用且低成本的方案。 它可用于超大振幅以及頻率高至50 kHz的振動測量。 根據(jù)運動的頻率和運動速度，只需要為相機提供頻閃照明就足夠了，這進一步簡化了測試的準備工作量。

The Vic-3D Vibration module is an easy-to-use and low-cost alternative to high speed cameras. It can be used for vibrations with large amplitudes and frequencies up to 50 kHz. Depending upon the frequency and velocity of motion, it is often sufficient to strobe only the camera, which further simplifies the test setup.

由于DIC數(shù)字圖像相關技術是一種非接觸式測量，測試試件的運動不會受到測量設備的干擾。 而且，試件制備只需要使用隨機散斑，且通?？梢允褂脟娖釀?chuàng)建，這使得系統(tǒng)具有*易用性。

Because Digital Image Correlation is a non-contact measurement, movement of the test specimen is not disturbed by the measurement equipment. And, specimen preparation requires only the application of a random pattern, which can typically be created with spray paint.

      離面位移值 Out-of-Plane W                                      主應變 e1                                                             次主應變 e2

系統(tǒng)特性 System Features

• 可用于3D坐標、位移、速度和應變張量的全場測量

• 可用頻率范圍：高至50 kHz

• 面內(nèi)精度高達0.02像素，離面精度高達0.04像素

• 應變精度高達局部0.01％，全局0.005％

• 應變范圍從0.005％到超過2000％

• 自動標定

• 圖像采集器可以通過主機輕松控制

• 強大的數(shù)據(jù)可視化工具

• 輪廓顯示可以覆蓋在測試樣本的圖像上

• 可根據(jù)用戶自定義的線條和圓環(huán)從3D圖中提取數(shù)據(jù)

• 用于統(tǒng)計分析、應力 - 應變曲線等數(shù)據(jù)的后處理工具

• 一年免費的技術支持和軟件升級

• 7*24小時提供實時技術支持

• 同時提供現(xiàn)場支持和咨詢

• 所有部件材料和/或制造缺陷的一年更換保修

• Full-field measurements of 3D coordinates, displacements, velocities, and strain tensors

• Frequency range: up to 50 kHz

• In-plane accuracy up to 0.02 pixels, out-of-plane accuracy up to 0.04 pixels

• Strain accuracy up to 0.01% local, 0.005% global

• Strain ranges from 0.005% to over 2,000%

• Automatic calibration

• Cameras can be easily controlled from the computer

• Powerful tools for visualizing data

• Contour displays which can be overlaid onto images of the test specimen

• Data extraction from 3D plots based on user defined lines and circles

• Post-processing tools for statistical analysis, stress-strain curves, and more

• One year of technical support and software upgrades

• Live technical support is available 7*24 H

• On-site support and consulting is also available

• One-year replacement warranty for defects in materials and/or workmanship on all parts