Probe Assemblies for NDT

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0 height="100%"><tr> <td valign="top" width=250 BGCOLOR="#FFFFFF" TEXT="#080000"> <bR> <bR> <bR> <bR> <bR> <bR> <div> <A HREF="index.htm" TARGET="_top" TITLE="NTS Ultrasonics"><U><IMG SRC="0110c0c0.gif" border=0 width="12" height="12" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A> <A HREF="index.htm" TARGET="_top" TITLE="NTS Ultrasonics"><U>Home</U></A></div> <bR> <div> <A HREF="ultrasonic_instruments_for_ndt.htm" TARGET="_top" TITLE="Ultrasonic Instrumentation for NDT"><U><IMG SRC="0110c0c0.gif" border=0 width="12" height="12" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A> <FONT SIZE="2" COLOR="#000000" FACE="Arial" ><A HREF="ultrasonic_instruments_for_ndt.htm" TARGET="_top" TITLE="Ultrasonic Instrumentation for NDT"><U>Ultrasonic NDT</U></A></FONT></div> <bR> <div> <B>Probe Assemblies</B></div> <bR> </td> <td valign="top" BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <A HREF="index.htm" TARGET="_top" TITLE="NTS Ultrasonics"><U><IMG SRC="005aa470.jpg" border=0 width="170" height="71" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A>                                                                  </div> <bR> <div> Perth, Western Australia. Ph (int): +61 8 9367 1578<FONT SIZE="1" COLOR="#000000" FACE="Arial" >         </FONT><B> For more information, contact:</B><FONT SIZE="1" COLOR="#000000" FACE="Arial" ><B> </B></FONT><FONT SIZE="1" COLOR="#0000FF" FACE="Arial" > </FONT><FONT SIZE="2" COLOR="#0000FF" FACE="Arial" ><A HREF="mailto:ntsu@amnet.net.au" TARGET="_top" TITLE="mailto:ntsu@amnet.net.au"><U><B>ntsu@amnet.net.au</B></U></A></FONT></div> <div> <IMG SRC="007520a0.jpg" border=0 width="850" height="10" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> Probe Assemblies for NDT</div> <div> NTS Ultrasonics can supply various types of probe holder and transducer assemblies for system integrators to apply to their own developments. We can</div> <div> supply conventional fluid filled <A HREF="#wheel_probes_1" TITLE="Probe Assemblies for NDT"><U>wheel probes</U></A>, <A HREF="#bubblers_and_jet_probes__squirters_" TITLE="Probe Assemblies for NDT"><U>jet probes (squirters)</U></A>, and <A HREF="#bubblers_and_jet_probes__squirters_" TITLE="Probe Assemblies for NDT"><U>bubblers</U></A>. We can design and build mechanical assemblies to hold the</div> <div> probes, and from time to time we have designed and built novel probes such as ball probes, and air ultrasound based X-Y transducer position locators.</div> <bR> <div> <FONT SIZE="3" COLOR="#0000FF" FACE="Arial" ><B>Ultrasonic Wheel Probes</B></FONT> <A NAME="wheel_probes_1"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></div> <bR> <div> Currently we offer two wheel probes:</div> <div> <B><IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">RL70</B>. A small 70 mm diameter ultrasonic wheel probe with a long internal water path for it's size.</div> <div> <B><IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">PL180</B>. A 180 mm diameter wheel intended for heavy duty use with multiple transducers. It is suitable for rail flaw detection and steel mill applications.</div> <bR> <div> <B>RL70</B>:</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c811111100.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">70 mm diameter (approx.);</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">70 mm internal water path (allows inspection to approximately 275 mm in steel);</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Suitable for general ultrasonic inspection applications;</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Ultrasonic thickness testing,</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Ultrasonic corrosion mapping,</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Ultrasonic flaw detection,</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Accepts single 16 mm immersion style transducer;</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Rubber tyre with an acoustic impedance close to that of water;</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Stainless steel assembly</div> <bR> <div> <B>Accessories:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c811111100.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Hand trolley with or without an encoder for manual inspection;</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c811111100.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Caliper for attaching to mechnical systems</div> <bR> <div> <B>Downloads </B><B>(pdf)</B><B>:</B></div> <div> <A HREF="http://www.amnet.net.au/~ntsu/pdf/rl70.pdf" TARGET="_top" TITLE="http://www.amnet.net.au/~ntsu/pdf/rl70.p"><U>RL-70 information</U></A></div> <div> <A HREF="http://www.amnet.net.au/~ntsu/pdf/rl70 outline.pdf" TARGET="_top" TITLE="http://www.amnet.net.au/~ntsu/pdf/rl70 o"><U>RL-70 outline drawing</U></A></div> <bR> <div> <B>PL180:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">180 mm diameter(approx.)  when filled;</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">100 mm internal water path or greater - depending on transducer configuration</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Can accept multiple transducers, e.g. 0 degree. 37 degree, and 70 degree as used in rail flaw detection;</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Can be used for longitudinal and shear waves in test pieces,</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Wide enough to accept paintbrush style transducers,</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Transducers are electrically isolated from metal parts of the wheel;</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Users can easily design and instal their own transducer holding blocks;</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Uses a tough polyurethane tyre</div> <bR> <div> <B>Accessories:</B></div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Caliper for holding the wheel;</div> <div> <IMG BORDER="0" SRC="Symb075c00b700c800000000.gif" HEIGHT="13" WIDTH="24" ALIGN="bottom" HSPACE="0" VSPACE="0">Pump system for filling wheels with fluid</div> <bR> <bR> <div> <B><IMG SRC="090d7d20.jpg" border=0 width="215" height="210" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> Pl180 wheel probe with caliper</div> <bR> <div> <B>Downloads (pdf):</B></div> <div> <A HREF="http://www.amnet.net.au/~ntsu/pdf/rl180.pdf" TARGET="_top" TITLE="http://www.amnet.net.au/~ntsu/pdf/rl180."><U>RL-180 information</U></A></div> <div> <A HREF="http://www.amnet.net.au/~ntsu/pdf/pl180 outline.pdf" TARGET="_top" TITLE="http://www.amnet.net.au/~ntsu/pdf/pl180 "><U>RL-180 outline drawing</U></A></div> <bR> <div> <B>Properties of wheel probe tyre materials</B></div> <DIV ALIGN="LEFT"></DIV> <div>   </div> <div> <TABLE BORDER="2" CELLPADDING="2" CELLSPACING="1" WIDTH="425" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 16 WIDTH="101"><div> <B>Material</B></div> </tD> <tD VALIGN=TOP COLSPAN=3 WIDTH="219"><div> <B>Attenuation dB/mm</B></div> </tD> <tD VALIGN=TOP><NOBR><div> <B>Hardness</B></div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 16 WIDTH="101"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="16" ALIGN="bottom" WIDTH="101" HSPACE="0" VSPACE="0"></tD> <tD VALIGN=TOP WIDTH="71"><div> @ 1MHz</div> </tD> <tD VALIGN=TOP><NOBR><div> @ 2.25MHz</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="71"><div> @ 5 MHz</div> </tD> <tD VALIGN=TOP WIDTH="71"><div> Shore A</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 16 WIDTH="101"><div> Rubber</div> </tD> <tD VALIGN=TOP WIDTH="71"><div> 1.6</div> </tD> <tD VALIGN=TOP WIDTH="71"><div> 2.0</div> </tD> <tD VALIGN=TOP WIDTH="71"><div> 2.4</div> </tD> <tD VALIGN=TOP WIDTH="71"><div> 40-50</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 16 ><NOBR><div> Polyurethane</div> </NOBR></tD> <tD VALIGN=TOP WIDTH="71"><div> 1.2</div> </tD> <tD VALIGN=TOP WIDTH="71"><div> 1.4</div> </tD> <tD VALIGN=TOP WIDTH="71"><div> 3.4</div> </tD> <tD VALIGN=TOP WIDTH="71"><div> 90-95</div> </tD> </tR> </TABLE></div> <bR> <div> <B>Custom design ultrasonic wheel probes</B></div> <bR> <div> We can offer a design service to clients requiring their own ultrasonic  wheel probe. We can design multi-transducer wheel probes that might be used in</div> <div> ultrasonic rail flaw detection, for example, and provide specifications for the tyre material and neutral temperature coefficient filling fluids. We can also</div> <div> design wheel probes with fixed angle transducers and variable angle wheel probes.</div> <bR> <div> <B> <A NAME="bubblers_and_jet_probes__squirters_"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><B>Bubblers and Jet Probes (Squirters)</B></div> <bR> <div> Bubblers and jet probes are probe assemblies that use water to couple the ultrasonic pulses into the work piece. Bubblers are located close to a surface,</div> <div> whereas jet probes are typically located up to 50 mm away from a surface and couple through a jet of water that accomodates work piece movement or</div> <div> changes in shape. Bubblers and jet probes designs tend to be application specific and are best custom designed to a clients requirements. </div> <bR> <div> We can build simple bubblers that fit on the end of a transducer, or bubblers in spring loaded mechanical assemblies for following uneven surfaces. We</div> <div> can also provide bubblers with curved shoes for the ultrasonic inspection of round bar stock.</div> <bR> <div> We can build squirters with laminar flow water jets up to 10 mm diameter. Laminar flow is important to prevent degradation of the ultrasonic performance.</div> <bR> <div> <IMG SRC="08f7abb0.jpg" border=0 width="122" height="187" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> Simple bubbler probe</div> <bR> <div> <B> <A NAME="novel_probes"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="1" ALIGN="bottom" WIDTH="1" HSPACE="0" VSPACE="0" ></A></B><B>Novel probes</B></div> <bR> <div> The following is an example of a specialized probe developed for a specific application.</div> <bR> <div> <B>Ball probe:</B></div> <div> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="1" WIDTH="752" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="VOID" RULES="NONE" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 174 WIDTH="209"><div> <IMG SRC="08986a70.jpg" border=0 width="134" height="167" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </tD> <tD VALIGN=TOP WIDTH="260"><div> These images show a ball probe that allows freehand scanning of a surface. The spherical coupler allows dry coupling on some materials, however, the probe works best with a supply of water as an internal and external couplant.</div> </tD> <tD VALIGN=TOP><NOBR><div> <IMG SRC="08bcaa80.jpg" border=0 width="202" height="168" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> </NOBR></tD> </tR> </TABLE></div> <bR> <bR> <div> <FONT SIZE="3" COLOR="#FF0000" FACE="Arial" ><B>For more information, contact: </B></FONT> <A HREF="mailto:ntsu@amnet.net.au" TARGET="_top" TITLE="mailto:ntsu@amnet.net.au"><U><B>ntsu@amnet.net.au</B></U></A></div> <bR> <div> <A HREF="index.htm" TARGET="_top" TITLE="NTS Ultrasonics"><U>Home</U></A> | <A HREF="ultrasonic_instruments_for_ndt.htm" TARGET="_top" TITLE="Ultrasonic Instrumentation for NDT"><U>Ultrasonic NDT</U></A> | About us</div> </td> </tr></table></body>