SmartSite RS Field X-ray instrument Portable stress analyzer The World’s Smallest Stress Analyzer SmartSite RS Head unit(bottom right) Power supply unit (back) Tablet PC for operation (bottom left) 1 †As of August 2014 Unique Features The world’s smallest instrument design Remote operation through a tablet PC and Wi-Fi The world’s smallest measurement head is 114(W) x 248(D) x 111(H) mm and weighs 3 kg. It enables measurement of residual stress in the inner surface of 200 mmpipe. The instrument is remotely controlled by a tablet PC with Wi-Fi communication. Rapid data acquisition Built-in utilities A high-speed 2-dimensional semiconductor detector and single-exposure method accelerates data acquisition. Residual stress is measured in 60 seconds or less in most cases. The instrument is powered by an optional exchangeable battery. There is no need to have utilities in field, e.g. cooling liquid and electricity. 2-D detectors Debye-Scherrer diffraction ring 2 Application Examples Residual stress measurement on shot peened steel The shot peening process creates high residual stress at the peened area. A shot peened steel sample was aligned by monitoring an image displayed on a tablet PC as recorded by an integrated CCD camera with the aid of a laser marker (See Figure 1 and the next page for sample alignment details). Predefined material and measurement parameters were used for evaluation. A DebyeScherrer diffraction ring of -Fe 211 was recorded by the 2-dimensional semiconductor detector (Figure 2). Exposure time was 60 seconds. Principal stresses 1 and 2 were calculated and displayed with the sample image taken by the CCD camera (Fig. 3). Residual stress 11 and its share component 12 were calculated as -1278.9 and -46.1 MPa, respectively (Fig. 4). These data, including the sample image and DebyeScherrer diffraction ring, are stored and summarized in a report. X-ray Laser Figure 1. Arrangement of head unit and sample X-ray Figure 2. A 2-D Debye-Scherrer diffraction ring of -Fe 211 diffraction Z Y 2 1 X Figure 3. Stress principal axes (1, 2) and sample coordinate (X, Y) Figure 4. Residual stress analysis result Sample type Typical sample types for residual stress measurement are summarized in the table. Other steel samples can also be measured. The sample shape is arbitrary: thanks to the device’s compact design, sheets, bulk materials, springs, gears and pipes can be measured without major sample preparation. 3 Examples of sample type Shot peening • Multistage shot peening • High-hardness shot peening • Fine shot peening Plastic working • Casting • Extrusion • Rolling General heat treatment • Hardening • Annealing Surface heat treatment • High-frequency hardening • Carburizing Welding Grinding and polishing Surface reforming Maintenance of plant and infrastructure • • Warm shot peening Stress shot peening • • • Pultrusion Machining Pressing Easy Alignment and Measurement CCD sample observation camera and laser marker 11 22 The measured point on the sample surface is indicated by a laser marker and is displayed on the tablet PC. White LEDs illuminate the sample for low-light work environments, e.g. inside a pipe. Sample image is stored together with measurement data and attached to the report. Sample alignment using sensors The distance to the sample surface and the incident angle of the X-rays are measured by a laser displacement sensor as well as 3-dimensional (3D) accelerometer and displayed on the tablet PC. An operator is able to adjust these parameters easily by following indicators on the display. Single-click measurement and analysis Measurement setup is easy. For daily use, the operator simply selects the type of application on the tablet PC and carries out the measurement. From data collection to reporting, all of the procedures are done by single-click operations. For the expert user, detailed measurement and analysis conditions are editable through the instrument control software. An expert user can also edit material parameters in recipes for residual stress calculation. Material-related parameters for each phase (e.g., Young’s modulus, Poisson’s ratio, Bragg angle of diffraction) are pre-installed in the instrument control software. Options for the residual stress calculation are selectable with regards to stress model, LPA (Lorentz-polarization and absorption) correction, wavelength component and BG (background) mode. Those parameters are saved as recipes together with measurement conditions. 4 Safety and Traceability Safety is our top priority This portable device is designed for field analysis, and can be used in open space environments. Integrated laser displacement sensor and three-dimensional (3D) accelerometer measure distance to the sample and the position of the device. Unless those parameters are set properly, X-rays cannot be illuminated onto the sample. The multiple step safety algorithm protects the operator from exposure to radiation. For indoor laboratory use, an optional radiation enclosure is available. It ensures a safe operational environment in the laboratory. Calibration standards for measurement traceability Measurement traceability is maintained by means of periodic calibration. SmartSite RS is delivered with instrument calibration standards, including steel powder, bulk steel and fluorescence powder. The steel powder calibrates “zero” stress and the absolute scale of residual stress is ensured by measuring the bulk steel sample, which has approximately -100 MPa of residual stress. Location and size of the X-ray spot on a sample is determined using the fluorescence powder standard. Calibration records can be recalled at any time from the history view. This assures the measurement traceability of the instrument. 5 Specifications Dimensions Head unit (excluding ball joint) 114 x 248 x 111 mm, 4.5 x 9.8 x 4.4 inch (W x D x H) approximately 3 kg, 6.6 lbs Power supply unit 230 x 470 x 460 mm, 9.1 x 18.5 x 18.1 inch (W x D x H) approximately 20 kg, 44.1 lbs 5m 1x carrying case included High voltage cable Storage for transportation Residual stress measurement Materials to be measured Residual stress calculation Stress component X-ray tube X-ray incident angle X-ray beam size Measurement time X-ray detector X-ray detector size 2 range Sample-detector distance Steel, aluminum (optional) General equation (Rigaku original) Biaxial stress Chromium radiation (Cr), 30 kV - 50 W 35° 1 mm (with collimator), 2 mm (without collimator) approximately 60 seconds High-speed semiconductor 2-dimensional detector 2x (38.5 x 19.3 mm) 145° ~ 165° 45 mm Operation PC Communication Windows 8.1 tablet PC Wireless (Wi-Fi) Environment, Utility, Safety Environment Temperature range Humidity range Power supply Safety mechanism Dust resistance -10 ~ +50°C with less than ±4°C fluctuation 1 ~ 70 % R.H. with less than ±10 % R.H. fluctuation AC 100 - 240V or optional built-in battery Safety mechanism by three-dimensional (3D) acceleration and laser displacement sensors, emergency stop switch, safety key 6 SmartSite RS Field X-ray instrument www.Rigaku.com Rigaku Corporation and its Global Subsidiaries website: www.Rigaku.com | email: info@Rigaku.com SmartSite RS_brochure_en_Ver2_2014.10.03 Copyright © 2014. Rigaku Corporation. All rights reserved.