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A robot assembly is placed into the chamber of the heat exchanger and works remotely with long probes to inspect each tubular section looking for holes and worn areas that might allow for leakage. Pinpoint was approached by a large firm in the nuclear power industry to develop a laser measuring system that could calibrate the position of the robot arm so that its position and orientation could be accurately monitored when it was later in use inside the unfriendly heat exchanger environment. The Microgage system was selected for this task and Pinpoint developed and manufactured these calibration systems for checking each robot, prior to its use. The picture above shows one of Pinpoint’s engineers checking the angular orientation and deflection of the first arm section on the inspection robot.</p> --> <p>Inside a nuclear reactor tremendous heat is generated by the fission process and water is used to cool the reactor and to maintain a correct balance or operating temperature. The water that is close to the reactor core is very hot in temperature and also radioactive because of it s proximity to the reaction process. For this reason, a heat exchanger is used to keep the hot reactor water separate from the working steam water that moves throughout the plant running generator turbines and other devices. </p> <p>The heat exchanger is a large vessel over 20 feet tall with two distinct interior sections &#8213; one for the water that surrounds the active reactor and the other for the cooling water used to generate power. More than 1000 pipe sections run through the heat exchanger allowing the &ldquo;clean&rdquo; water from the plant and steam turbines to pass through the &ldquo;hot water&rdquo; zone to absorb the heat from the reactor. During this process, it is vital that the two water sources exchange their heat but not mix or physically come in contact. The connecting tube sections create this barrier and must be inspected periodically to ensure that corrosion and leaks are not present that could create unwanted mixing of the two fluids. </p> <p>The heat exchanger is drained to a safe level and the robot inspection device is secured in the heat exchanger and then left alone to perform the inspection process. The articulating robot arm positions a sensor that passes up and around through each heat exchanger tube looking for damaged walls, corrosion, pits, leaks, and other potential problems. This robot operates remotely and is required to position the tube sensor very precisely throughout the inspection process. </p> <p>Pinpoint Laser Systems was approached by a large firm in the nuclear power industry to develop a laser measuring system that could calibrate the position of the robot arm so that its position and orientation could be accurately monitored when it was later in use inside the unfriendly heat exchanger environment. The Microgage system was selected for this task and Pinpoint developed and manufactured these calibration systems for checking each robot, prior to its use. </p> <p>A Microgage Laser transmitter is positioned on the centerline of one pivoting arm section and the laser beam projects down the center axis of the arm in its neutral position. A digital Microgage receiver is placed on other pivoting arm sections and mounting surfaces of the robot. The robot arm is then controlled through a series of motions, carrying the Microgage Receiver along with it. Readings are taken throughout this process so that comparisons between the encoders on the robot arm and the precise output of the Laser Microgage can be compared. A compensation and correction table is then created that allows the robot to adjust and compensate for any inaccuracies. The picture above shows one of Pinpoint s engineers checking the angular orientation and deflection of the first arm section on the inspection robot. </p> <p>The high precision and reliability of the Laser Microgage system makes this an ideal product for checking and evaluating the robot arm performance before it enters the hot zone of the nuclear plant. Pinpoint continues to refine and improve the Laser Microgage line for specific industrial customers and their unique applications. For additional information on robotic system measurements and other industrial applications please contact us. </p> <p align="right"><a href="../case-studies.html">Back to Case Studies</a> </p> </div> <div class="clear"></div> <p><br /> <img src="/images/logo-indaligned.jpg" alt="Industry Aligned" width="100" height="89" align="right" /></p></td> <td width="195" valign="top" style="border-left:#990000 1px solid;"><div style="padding:10px 10px 5px; background-color:#eee;"> <p align="center" style="margin-top:0px;"><strong><span class="style4">Talk to a Pinpoint<br /> Engineer</span></strong><br /> </p> <form action="/sendmail-quick.php" method="post" onSubmit="return checkform(this);"> <input type="hidden" name="spam" value="yes" /> <div class="inner"> <div> <label>Name<br /> <input name="name" type="text" class="field" id="name" value="" size="27" maxlength="200" /> </label> </div> <div> <label>Email<br /> <input name="email" type="text" class="field" id="email" value="" size="27" maxlength="255" /> </label> </div> <div> <label>Phone<br /> <input name="phone" type="text" class="field" id="phone" value="" size="27" maxlength="255" /> </label> </div> <div> <label>Questions / Comments<br /> <textarea name="comments" cols="24" rows="4" class="field" ></textarea> </label> </div> <div> <p align="center"><input type="image" src="/images/pinlaser-submit.png" name="" alt="Submit" class="ruf" /></p> <p style="font-size:11px;" align="center">After filling out this inquiry form, you can immediately download Pinpoint product and application information.</p> </div> </div> </form> <script language="JavaScript" type="text/javascript"> function checkform ( form ) { form.spam.value="no"; if (form.email.value == "") { alert( "Please enter your email address." ); form.email.value=""; form.email.focus(); return false ; } if (form.phone.value == "") { alert( "Please enter your phone number." ); form.phone.value=""; form.phone.focus(); return false ; } return true ; } </script> </div> <p><strong><span class="style4"><br /> Our Customers</span></strong> </p> <p> <OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" WIDTH="160" HEIGHT="120" id="slidesimple" ALIGN=""> <PARAM NAME=movie VALUE="/slidesimple.swf?xmlUrl=/exemple2.xml"> <PARAM NAME=loop VALUE=false> <PARAM NAME=menu VALUE=false> <PARAM NAME=quality VALUE=high> <PARAM NAME=bgcolor VALUE=#ffffff> <PARAM NAME=scale VALUE="noscale"> <EMBED src="/slidesimple.swf?xmlUrl=/exemple2.xml" loop="false" menu="false" quality="high" bgcolor="#FFFFFF" WIDTH="160" HEIGHT="120" NAME="slidesimple" ALIGN="" SCALE="noscale" TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer"> </EMBED> </OBJECT> </p> <p><strong><span class="style4">Our Customers Say</span></strong></p> <div class="slideshow"> <div> <p><i>"We actually used it (Cylindrical Laser) for aligning the Power Rollers the turbine rotor sits on during inspections and testing. It went extremely well. Didn’t suffer the delays we encountered last year when the turbine rotor shouldered up on the power roller (cost us about 20 hours). It has already paid for itself. Thanks for your help."</i></p> <p align="right">Edward W. Williams<br /> TG/MSR Project Manager<br /> Brunswick Nuclear Plant,<br /> Progress Energy Carolinas</p> </div> <div> <p><i>"We purchased the Microgage 2000 and the Lateral Pitch Plate for measuring flatness, parallelism, and other applications. We have been extremely satisfied with the entire process. The quality of the parts we received is of the highest order and the accuracy of the measurements is truly spectacular."</i></p> <p align="right">Dr. Joshua R. Williams,<br /> Sr. Scientist<br /> XStream Systems, Inc</p> </div> <div> <p><i>"This is just an update for you and a testimony to the great help that your product was in assisting us during our installation and maintenance work and shutdown periods. We installed the wedge blocks with ease and they performed in the very same manner. Great product!"</i></p> <p align="right">Jeffery W. Evans<br /> Westinghouse Electric Co, LLC</p> </div> <div> <p><i>"We are having great success with this unit (Microgage 2D Universal Kit) in moving my machines this year."</i></p> <p align="right">Martin Usher<br /> Apollo Machine</p> </div> <div> <p><i>"The sales department was very knowledgeable and the technical department was very thorough. The Microgage 2000 was exactly what we needed. We are extremely happy with the results."</i></p> <p align="right">Dr. Joshua R. Williams<br /> Senior Scientist<br /> XStream Systems, Inc.</p> </div> <div> <p><i>"One thing that stands out and has been commented on by all who have seen the equipment is its design and build quality. It is a beautifully engineered and built piece of equipment, which is a pleasure to use. 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