Dear Smiriti, Thanks for your comment. The is "theoretically yes". It all depends on the physical construction of the blade, thickness of plies, size of defects etc. We typically ask the customer to provide a sample with known defects for a feasibility study. That way we and you can be sure that it works before purchasing a system. Feel free to fill out our contact us form and we can further our conversation. movitherm.com/contact-us/
Could this be used in nuclear plants (high radiation areas)? Is insulation removal required (probably a stupid question)? And can the remaining wall thickness (elbows, tees, expanders/reducers) be ascertained with this equipment, or does it only locate flaws/inclusions?
Hi! Thanks for your question. In theory this would work. I would need to learn more about the type of insulation, thickness etc. Pipe thicknesses can be measured using ultrasound non-destructive testing.
would it be possible to use other type of IR camera (cheaper version) with similar resolution IR image for NDT testing carbon parts? second part of question Does the thermal lamp accelerator has to be used, would it image still be visible with defect on regular room temperature? If not would be possible to use other type thermal lamp or source to bring temperature in testing sample?
Our system supports only a handful camera models that are applicable for this application. In order to get good results, you need to use a good camera. Cheaper cameras tend to be not sensitive enough and too noisy. We use a Xenon Flash Lamp and Generator for this with 6 KJoule output. That is about what you need to create the results you see in the video.
Hi Sedat! Yes, you could use flash. You could also use Vibro-Thermography. To learn more about our solutions, please check out our website: movitherm.com/solutions/non-destructive-testing/
how does your 1st, 2nd, and 3rd derivative work and how it is fine tuned in the results? I guess I just do not realize why you would need a derivative when the flash should show it initially.
Sophia, it is correct that a defect might show by just observing the cool down signal. However, a derivative algorithm will enhance the contrast significantly. It enhances the rate of change. This is performed on each pixel over the entire image sequence in the measurement. Our system has multiple different mathematical models that can be applied to the measurements. Each one with its own pros and cons.
Quick question, I would like to know the resolution on one of these systems. I would like to know if the system will pick defects in a single ply composite that's 0.10 - 0.20 mm in thickness. Thanks
Dear Krishnan, Thanks for your question. Yes, defect detection through a single ply is not a problem. In fact, we can detect defects through several plies. When using flash thermography, you are roughly limited to about 1.5mm to 2.0mm penetration depth in composites. However, when using transient, we can penetrate to about 6-7 mm due to the longer excitation. The minimum size of the defect depends on the field of view of the camera and the camera spatial resolution. We like to see at least 4x4 pixels across the smallest defect size of interest. Make sure to visit our website for more information as well. movitherm.com
Thanks Markus. Any chance you can scan a sample prepreg (single ply) and share the data with me ? I can connect with you via email if you could share it. Thanks
Theoretically, yes. Every part is different and the involved physics are often complex. We offer imaging studies on sample parts with known defects to test things out.
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Hi, will it be possible to test a composite hydraulic turbine blade for internal delaminations and air gaps ?
Dear Smiriti,
Thanks for your comment. The is "theoretically yes". It all depends on the physical construction of the blade, thickness of plies, size of defects etc. We typically ask the customer to provide a sample with known defects for a feasibility study. That way we and you can be sure that it works before purchasing a system. Feel free to fill out our contact us form and we can further our conversation. movitherm.com/contact-us/
Could this be used in nuclear plants (high radiation areas)? Is insulation removal required (probably a stupid question)? And can the remaining wall thickness (elbows, tees, expanders/reducers) be ascertained with this equipment, or does it only locate flaws/inclusions?
Hi! Thanks for your question. In theory this would work. I would need to learn more about the type of insulation, thickness etc. Pipe thicknesses can be measured using ultrasound non-destructive testing.
would it be possible to use other type of IR camera (cheaper version) with similar resolution IR image for NDT testing carbon parts? second part of question Does the thermal lamp accelerator has to be used, would it image still be visible with defect on regular room temperature? If not would be possible to use other type thermal lamp or source to bring temperature in testing sample?
Our system supports only a handful camera models that are applicable for this application. In order to get good results, you need to use a good camera. Cheaper cameras tend to be not sensitive enough and too noisy. We use a Xenon Flash Lamp and Generator for this with 6 KJoule output. That is about what you need to create the results you see in the video.
Good video
Thanks! Danke!
Thanks for the video. Is it possible to detect the small crack on seramic parts?
Hi Sedat! Yes, you could use flash. You could also use Vibro-Thermography. To learn more about our solutions, please check out our website: movitherm.com/solutions/non-destructive-testing/
how does your 1st, 2nd, and 3rd derivative work and how it is fine tuned in the results? I guess I just do not realize why you would need a derivative when the flash should show it initially.
Sophia, it is correct that a defect might show by just observing the cool down signal. However, a derivative algorithm will enhance the contrast significantly. It enhances the rate of change. This is performed on each pixel over the entire image sequence in the measurement. Our system has multiple different mathematical models that can be applied to the measurements. Each one with its own pros and cons.
How can I get the test thermogram data file ?
We provide feasibility studies.
Quick question, I would like to know the resolution on one of these systems. I would like to know if the system will pick defects in a single ply composite that's 0.10 - 0.20 mm in thickness. Thanks
Dear Krishnan,
Thanks for your question. Yes, defect detection through a single ply is not a problem. In fact, we can detect defects through several plies. When using flash thermography, you are roughly limited to about 1.5mm to 2.0mm penetration depth in composites. However, when using transient, we can penetrate to about 6-7 mm due to the longer excitation. The minimum size of the defect depends on the field of view of the camera and the camera spatial resolution. We like to see at least 4x4 pixels across the smallest defect size of interest. Make sure to visit our website for more information as well. movitherm.com
Thanks Markus. Any chance you can scan a sample prepreg (single ply) and share the data with me ? I can connect with you via email if you could share it. Thanks
@@krishnanbalajithattaiparth9112
Please contact us directly at www.movitherm.com via our contact us form. Thanks!
What brand is your pulse flash generator and what type of bulb did you use?
We use a German Company: "Hensel" with a 6 KJoule Xenon bulb.
Can you recommend a buyer in US?
@@sattardorafshan2446 You can contact us directly. www.movitherm.com
what FLIR camera are you using?
We are using the FLIR A400 and FLIR A700
movitherm.com/solutions/skin-surface-temperature-screening/
Active thermography or reflectography?
Active thermography
Hi. Can be used to detect internal defects in aluminum castings?
Theoretically, yes. Every part is different and the involved physics are often complex. We offer imaging studies on sample parts with known defects to test things out.
movitherm Ok, thanks.
Hi ¿What kind of flash lamp is used?
Hi! A Xenon Flash Lamp with 6KJoule of power
@@movitherm Thank you!