Solutions Knowledge Products Measurement Service About Us Contact Us English Home / Products / Prism Prism Prism is an advanced hole drilling system for residual stress measurement. Prism utilizes electronic speckle pattern interferometry (ESPI) to determine surface displacements and calculate stresses. Just like the conventional strain gage hole-drilling systems, Prism measures changes in the part surface caused by the hole drilling and determines the previously existing residual stresses. However, the often time-consuming application of strain gages is avoided and a large area around the hole is analyzed, not averages from just a few areas. Prism measures surface distortion using electronic speckle pattern interferometry (ESPI). Only minimal sample preparation is required. Prism system measures surface distortion optically using laser light that is diffusely reflected from the sample surface. Prism’s software manages the measurement, collects the data and analyses the results and data quality. Key benefits Minimal preparation: clean measurement surface with low-reflectivity (may be spray painted). Non-contact: only requires direct visual path to part; no strain gages to be applied. Fast: extensive depth profile within ½ hour. User friendly: easy-to-use Windows based software. Easy: computer controlled, automatic measurement. Materials: includes materials difficult for XRD like titanium and plastics; limited mainly by the ability to drill holes of good quality. Image Gallery Speak with an expert about Prism Our engineers are standing by to answer your questions and help you find the right equipment for your testing application. Contact Us Stresstech Oy FINLAND Tikkutehtaantie 1 40800 VAAJAKOSKI FINLAND Tel: +358 14 333 000 Fax: +358 14 333 0099 Email: info@stresstech.com American Stress Technologies, Inc. UNITED STATES 540 Alpha Drive Pittsburgh, PA 15238-2912 USA Tel: +1 412 784 8400 Fax: +1 412 784 8401 Email: infoUSA@stresstech.com Stresstech GmbH GERMANY Konnwiese 18 56477 Rennerod Tel: +49 2664 99731-0 Fax: +49 2664 99731-55 Email: infoDE@stresstech.de Stresstech Bharat Pvt. Ltd. INDIA Office No. 1309, Plot no. A-1, Sector-1 Rupa Solitaire bldg, MBP Mahape Navi Mumbai 400 710 Tel: +91 22 27782011 Fax: +91 22 27782012 Privacy Policy Terms and Conditions of Sale Customer Survey Copyright © 2021 Stresstech A Nova Instruments Company, All Rights Reserved. This website stores cookies on your computer. These cookies are used to collect information about how you interact with our website and allow us to remember you. We use this information in order to improve and customize your browsing experience and for analytics and metrics about our visitors both on this website and other media. To find out more about the cookies we use, see our Privacy Policy. If you decline, your information won’t be tracked when you visit this website. A single cookie will be used in your browser to remember your preference not to be tracked. Accept and Close Decline