Michael J. Caron, Test Engineer. Lee R. Senne, Test Technician. Kent L. Erickson, Dynamics Division Manager

Transcription

1 Engineering Report Vibration Test for Crystal Group Inc. Prepared by Michael J. Caron, Test Engineer Lee R. Senne, Test Technician Approved by Kent L. Erickson, Dynamics Division Manager This document shall not be reproduced, except in full, without express written authorization of Environ Laboratories LLC. In the event this document is provided to the customer in any format that may be modified or copied in any part, no modifications, changes, or additions to this report, nor any summary hereof, shall be permitted in any manner. All original content of this document shall be considered one entire report. Environ Laboratories LLC shall not be liable to the customer or to any third party for unauthorized modification or misuse of this document. Transmittal of technical data (as applicable): ITAR/EAR related content; this document may contain technical data within the definition of the International Traffic in Arms Regulations (ITAR) or Export Administration Regulations (EAR) and is subject to the export controls law of the U.S. Government. Transfer of this data by any means to a foreign person or foreign entity, whether in the United States or abroad, without an export license, ITAR exemption, or other approval from the U.S. Department of State or Bureau of Industry and Security is prohibited Girard Avenue South Minneapolis, MN FAX Testing Cert

2 Revision history Revision Total number of pages Date Description -- 9 August 18, 2014 Original ENVIRON LABORATORIES LLC Page i of i

3 Prepared for: Crystal Group Inc. Attention: Mr. Brent Sievers Test dates Start: 12/19/2013 Completion: 12/19/2013 Environ test number: Purchase order number: Purchase date: 12/12/2013 Vibration Test 1.0 Abstract 1.1 Object Subject one Thin Client Custom 1U Embedded Server to a Vibration Test as specified in the customer dated December 9, 2013, which references MIL-STD-810G, dated October 31, 2008, Method 514.6, as requested in Crystal Group Inc. purchase order , dated December 12, Conclusions Upon completion of the Vibration Test the test unit remained intact and appeared to have incurred no visible evidence of damage or degradation as a result of the test. The test unit was operated and monitored by a representative of Crystal Group, inc. throughout the course of testing. 2.0 Unit(s) tested Table 2-1: Units tested Manufacturer Device Model/part number Crystal Group Inc. One (1) Thin Client Custom 1U Embedded Server Rugged Thin Client Serial number The results of this test apply only to the units identified in this Engineering Report by device identifier and model / part number, or serial number. ENVIRON LABORATORIES LLC Page 1 of 9

4 3.0 Test requested Subject one Thin Client Custom 1U Embedded Server to a Vibration Test as specified in the customer-supplied dated December 10, Random background Frequency (Hz) Power spectral density (g²/hz) In addition, the following sinusoidal tones were superimposed over the random background: Frequency (Hz) Excitation (g peak) Overall acceleration: Duration: grms 1 hour in each of three mutually perpendicular axes ENVIRON LABORATORIES LLC Page 2 of 9

5 4.0 Instrumentation, procedure, and results 4.1 Instrumentation All instrumentation is calibrated regularly by instruments directly traceable to the National Institute of Standards and Technology, and in accordance with MIL-I-45208A, ANSI/NCSL Z , and ISO/IEC 17025: Table 4-1: Instrumentation list Equipment Number Description Manufacturer Model Number Last Calibration Due Calibration Range Signal Conditioner / Power Supply Endevco 104/109 8/26/2013 8/26/ Hz to 20 khz Accelerometer PCB Piezotronics 352A73 1/7/2013 1/7/ to 1000 g; 2 Hz to 10 KHz Accelerometer PCB Piezotronics 352C41 7/17/2013 7/17/ to 500 g; 0.5 Hz to 10 KHz ICP Accelerometer PCB Piezotronics 352C34 9/12/2013 9/12/ Hz to Hz Vibration Exciter Unholtz-Dickie 560 N/A N/A 5 to 2000 Hz; 6000 force lbs Vibration Amplifier Unholtz-Dickie MA N/A N/A 5 to 2000 Hz Vibration Shaker Unholtz-Dickie T509 N/A N/A 5 to 3000 Hz; 7000 ft-lbs D Vibration Controller Vibration Research Corporation VR9500 1/29/2013 1/29/2014 N/A ENVIRON LABORATORIES LLC Page 3 of 9

6 4.2 Procedure The test unit was connected for operation and secured to a fixture plate, which was coupled to the vertically oriented exciter. A control accelerometer was cemented to the fixture plate, and the operational test unit was subjected to testing in the Z-axis. The test unit was next secured to the horizontally oriented slip plate, and then finally rotated 90 degrees on the slip plate, and testing was conducted in the Y and X-axes, respectively. 4.3 Results Upon completion of the Vibration Test, the test unit remained intact and appeared to have incurred no visible evidence of damage or degradation as a result of the test. The test unit was operated and monitored by a representative of Crystal Group, inc. throughout the course of testing. The test unit was returned to Crystal group, Inc. Test setup photographs and vibration graphs follow. ENVIRON LABORATORIES LLC Page 4 of 9

7 Photograph 4-1: Test unit identification label Photograph 4-2: Test unit secured to the fixture plate and ready for testing in the Z-axis. The control accelerometer is visible, cemented to the fixture plate. Applied motion is up-and-down as this photograph is viewed. ENVIRON LABORATORIES LLC Page 5 of 9

8 Photograph 4-3: Test unit secured to the slip plate and ready for testing in the Y-axis. The control accelerometer is visible, cemented to the slip plate. Photograph 4-4: Test unit secured to the slip plate and ready for testing in the X-axis. The control accelerometer is visible, cemented to the slip plate. Applied motion is front-to-back as this photograph is viewed. ENVIRON LABORATORIES LLC Page 6 of 9

9 Customer: Crystal Group, Inc. Job#: Data: C:\VibrationVIEW\Data\ \ Dec vrd Test: C:\VibrationVIEW\Profiles\49820.vrp Data stored on Dec 19, :41:24 Crystal Group inc. - Z-Axis Small Rugged Thin Client - End of Test Acceleration Spectral Density 1x10 0 Acceleration Spectral Density (G²/Hz) 1x10-1 1x10-2 1x10-3 1x10-4 1x10-5 1x10-6 R1 BR Control Frequency (Hz) Test level schedule: Duration Level 1) 1:00: % (SoR) ** Test started Dec 19, :40:33, running for 1:00:51 ** Current level: 1, running at 100 % for 1:00:00 of 1:00:00 ENVIRON LABORATORIES LLC Page 7 of 9

10 Customer: Crystal Group, Inc. Job#: Data: C:\VibrationVIEW\Data\ \ Dec vrd Test: C:\VibrationVIEW\Profiles\49820.vrp Data stored on Dec 19, :04:22 Crystal Group inc. - Y-Axis (long)small Rugged Thin Client - End of Test Acceleration Spectral Density 1x10 0 1x10-1 Acceleration Spectral Density (G²/Hz) 1x10-2 1x10-3 1x10-4 1x10-5 1x10-6 R1 BR Control Frequency (Hz) Test level schedule: Duration Level 1) 1:00: % (SoR) ** Test started Dec 19, :03:37, running for 1:00:45 ** Current level: 1, running at 100 % for 1:00:00 of 1:00:00 ENVIRON LABORATORIES LLC Page 8 of 9

11 Customer: Crystal Group, Inc. Job#: Data: C:\VibrationVIEW\Data\ \ Dec vrd Test: C:\VibrationVIEW\Profiles\49820.vrp Data stored on Dec 19, :11:47 Crystal Group inc. - X-Axis (lat) Small Rugged Thin Client - End of Test Acceleration Spectral Density 1x10 0 1x10-1 Acceleration Spectral Density (G²/Hz) 1x10-2 1x10-3 1x10-4 1x10-5 1x10-6 R1 BR Control Frequency (Hz) Test level schedule: Duration Level 1) 1:00: % (SoR) ** Test started Dec 19, :10:57, running for 1:00:50 ** Current level: 1, running at 100 % for 1:00:00 of 1:00:00 ENVIRON LABORATORIES LLC Page 9 of 9