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MPACT

CHO

(IE)

www.olsoninstruments.com

www.olsonengineering.com

IMPACT ECHO TEST

NDE-360

NDE-360 Platform with WinTFS Software Version 2.3

Содержание NDE-360

Страница 1: ...HO IE www olsoninstruments com www olsonengineering com S SY YS ST TE EM M R RE EF FE ER RE EN NC CE E M MA AN NU UA AL L 2 20 00 08 8 IMPACT ECHO TEST NDE 360 NDE 360 Platform with WinTFS Software Ve...

Страница 2: ...s Impact Echo system unless approved by Olson Instruments Inc Further this manual and the accompanying software may not be used by any party other than the original purchaser without prior approval of...

Страница 3: ...sy to handle and operate tool in verifying structure integrity locating defects and determining thickness of the structure The IE test with the NDE 360 system allows the user to collect data easily an...

Страница 4: ...g device application of the IE method was developed by Olson Instruments and is a patented technology For simple investigations on slabs pipes or walls where the overall thickness is the primary conce...

Страница 5: ...mmer grease and cables A description of each of these components as well as their connection and operation is included in the following sections Component Name QTY Description 1 Olson Instruments NDE...

Страница 6: ...me QTY Description 4 Power Supply 1 Power supply for the NDE 360 platform 5 Charger 1 Battery charger must be connected to the power supply on one end and the NDE 360 on the other end 6 Card Reader an...

Страница 7: ...panel housing the battery is located on the back of the NDE 360 system Move the switch to remove the battery cover if battery needs to be replaced 2 2 Basic Components and Maintenance of NDE 360 Platf...

Страница 8: ...reen of the NDE 360 system In this case the IE test uses the Impact Echo Channel Thus four 4 pins channel will not be used for the IE test Do not expose the NDE 360 system or the battery to water Impa...

Страница 9: ...E 360 Operation Notes The NDE 360 system is a self contained data conditioning collection basic processing and data display platform usable for a number of types of NDT tests The system was designed t...

Страница 10: ...t the cable Item 3 to the IE head Item 2 by aligning the pin on the cable with the corresponding hole in the IE head 2 Connect the other end of the cable to the IE Channel on the NDE 360 3 The picture...

Страница 11: ...oninstruments com www olsonengineering com 4 The picture below shows the complete IE system with the IE head on top of a concrete cylinder ready to acquire data Note that the concrete cylinder is not...

Страница 12: ...s on the Continue button on the upper right corner of the screen If the compact flash card is not in place the Continue button will not appear on the screen 3 0 IE DATA ACQUISITION Press on this butto...

Страница 13: ...onengineering com 2 Press on the IE option The option included in the unit may be different depending on the order The picture below shows the screen with IE and UPV Ultra Sonic Pulse Velocity options...

Страница 14: ...er the correct date and time of testing Time Point or Sampling Rate means how often in time domain the system will acquire data points within a given data trace In the case shown in the picture below...

Страница 15: ...s case the trigger level was set at 6 Therefore the system will start acquiring data once the absolute amplitude of the signal exceeds 0 6 volt This parameter can not be changed after the data was tak...

Страница 16: ...ew filename To change the prefix press on the Files button and press number 5 and then number 1 Then a virtual keyboard will appear on the screen and the user can change the prefix part of the filenam...

Страница 17: ...ows the spectrum of the time domain data acquired from a 5 in concrete cylinder Press A button 8 Repeat Step 7 until all the records are collected 9 After all the records are collected Press 2 to save...

Страница 18: ...uments install CD 4 Follow the default setup 5 After finishing the installation the WinTFS exe file will be found on drive C Program Files Olson Instruments WinTFS The shortcut to the WinTFS exe can b...

Страница 19: ...e program will display a warning that the software key file is missing and will only enable two options on the main menu Select the Software Key button and then enter the software key attached to the...

Страница 20: ...the filename to analyze 2 Accept or Reject Data The IE time domain raw data will appear on the top trace of the plot The second trace shows a spectrum of the data from the top trace The third trace s...

Страница 21: ...leave all the filter options unclicked Figure 5 4 Digital Filter 4 Concrete Velocity The next important aspect in the IE analysis is the velocity setting To access the velocity being used to calculat...

Страница 22: ...ng thickness However the user can manually pick the frequency peak by placing the cursor on the frequency and the software will automatically calculate the corresponding thickness 6 Open the next IE d...

Страница 23: ...the IE test data from a 15 thick transfer wall The first spectrum shows sound concrete The second spectrum shows concrete with internal honeycombing and the third picture shows concrete with internal...

Страница 24: ...le peak character in the frequency domain with the dominant peak representing shallower than the expected thickness The picture below shows the data with internal cracks detected at approximately 6 5...

Страница 25: ...IMPACT ECHO IE www olsoninstruments com www olsonengineering com Related Peer Reviewed Papers...

Страница 26: ...ct 240 Text 3859 Tables 2 250 500 Figures 11 250 2750 Total Words 7349 Date Submitted August 1 2006 Yajai Tinkey Senior Engineer Olson Engineering Inc 12401 W 49th Ave Wheat Ridge Colorado 80033 Telep...

Страница 27: ...t defect detection with Impact Echo Scanning of 8 four inch diameter ducts with constructed defects was the main focus in this study Comparisons of the IE defect interpretation and the actual design c...

Страница 28: ...nys y Gwas Bridge in Wales had been inspected 6 months prior to the collapse and no apparent signs of distress were observed 2 Examples such as this one lead some to fear that inspection based on limi...

Страница 29: ...impactor that generates higher frequency A comparison of the Impact Echo Scanner and the point by point Impact Echo Scanner unit is shown in Figure 1 Typical scanning time for a line of 4 m 13 ft app...

Страница 30: ...ed into the ducts before grouting to form internal voids with sizes ranging from small to almost full diameter voids Figure 3 shows a Styrofoam rod being inserted into the top duct of the north wall A...

Страница 31: ...4 13 3 101 6 4 23 4 0 92 32 23 4 127 5 34 8 1 37 40 34 5 159 5 6 28 50 8 2 50 50 6 192 3 7 57 66 8 2 63 60 66 7 217 7 8 57 78 2 3 08 68 77 8 243 1 9 57 87 9 3 46 76 87 9 268 5 10 57 95 2 3 75 84 94 Fi...

Страница 32: ...post tension wire strand cables The slab contains eleven tendon ducts with well defined grouting defects The metal ducts were chosen and positioned to represent typical testing situations as they are...

Страница 33: ...as completed by Restruction Corporation of Sedalia Colorado This paper presents results from the South and North walls for testing conducted 3 days after the grouting of the ducts was completed Ultras...

Страница 34: ...st or 76 circumferential perimeter lost Similar to the results from the top duct the interpretation of the Impact Echo Scanner results however shows a downshift in frequencies from lengths of 5 18 to...

Страница 35: ...all with Actual Design Defects of Second Duct Figure 7 IE Results from the South Wall with Actual Design Defects of Third Duct 240 East End 16 6 0 60 120 180 20 40 80 100 140 160 200 220 Length of Wal...

Страница 36: ...rcumferential contact diameter lost Figure 8 IE Results from the North Wall with Actual Design Defects of Top Duct and the Normalized Thickness Scale North Wall Second Duct from Top Several pieces of...

Страница 37: ...parallel to the direction of the ducts across the 13 ft 4 m wide slab A total of 200 scan lines was performed on this specimen This paper includes data interpretation from only one duct from the slab...

Страница 38: ...annot identify the difference between the silicone contamination simulates debonding and actual grout defects Figure 11 Comparison of IES Test Results and its interpretation and the Actual Defect Desi...

Страница 39: ...IDEA program of the Transportation Research Board of the National Academy of Sciences which made this research project possible is greatly appreciated by the authors Our sincere gratitude goes toward...

Страница 40: ...ments com www olsonengineering com 8 Y Tinkey L D Olson H Wiggenhauser Impact Echo Scanning for Discontinuity Detection and Imaging in Posttensioned Concrete Bridges and Other Structures Materials Eva...

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