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September 2003

Volume 4, Issue 9

 

In This Issue:

Welcome

View the
Conference Video

 


Paper Titles and abstracts for 2003

Hello {{user("firstname")}},

It's back to school time again, and that means thermographers too! We have a bevy of courses coming up and of course the InfraMation conference, a continuing education experience for even the most seasoned thermographer. Check out the latest paper titles and abstracts that are to be presented.

This month we have an article by Jason Gagnon for all of you Researcher software users out there on how to move your thermal data out of the program so it can be read by other software.

And take a guess at solving our Brainteaser of the Month.

If you want to save this newsletter for viewing off line in your computer, just go to the web page using your browser and select File....Save As or save this email page as html in your email software.

Happy September,

Gary Orlove,
Editor and Publisher

 

IR in the News [top]

 

InfraMation Conference Coming Up Soon [top]

The InfraMation Thermographer's Conference is less than six weeks away! If you haven't already done so, please register and reserve your room at the $50 dollar a night rate before our block of rooms runs out.

We have almost 50 papers and presentations for you at this year's conference in Las Vegas, Nevada, October 13-16. Take a look at the paper titles and abstracts. We are sure you will find a lot of content of interest.

We also still have openings at the IR Clinic mini-courses. Subjects this year include selling your IR services, IR Software, and Roof, Electrical, and Mechanical applications.

 

Exporting Data from ThermaCAM Researcher  [top]

by Jason Gagnon
ITC Technical Support Manager

Questions often arise about how to export data from ThermaCAM Researcher into other, more standard formats. This article will discuss some of the most common export techniques. Note that all instructions are based on ThermaCAM Researcher 2.7 Professional. All options may not be available in older versions of the program.

Part 1: Open the images

1. Researcher can analyze two types of IR files. A sequence file (*.SEQ) is an IR movie file that can be recorded directly to the PC’s hard drive with a live connection to the camera or to the internal memory of an S60 camera using the burst recording mode. An image file (file extension varies depending on what type of camera is used) is a single IR file that can be stored in the camera and then transferred to the PC. Researcher can also store a single IR file or a series of IR files to the PC’s hard disk when you have a live connection to the camera.

2. Select Image > Open in Researcher to select the sequence file or image files that you want to analyze. Highlight the images of interest and click the Add button to add them to the session. You can add several sequences and image files to a session. Click OK once all the images have been added.

Part 2: Set selection to export

1. By default all of the images currently open in the session are selected. You can, however, reduce the selection to only a specific set of images. To set a new selection, drag the Image slider to the starting point of the new selection. Click Set selection start to set the starting point.

2. Now drag the Image slider to the end of the new selection and click the Set selection end button. The blue highlighted area represents the selection that will be exported.

Part 3: Copy selection to another format

1. Select Recording > Copy Selection from the pull-down menus to export your selection. The save options are as follows:

a. SEQ: This will copy the current selection into a new sequence file. This option will only appear if the source is a sequence file. You can’t convert a series of individual IR image files into a new SEQ file.

b. Bmp: This will convert each frame in the current selection into a Windows BMP image file. You have the option to include the temperature scale and analysis tools or to export just the image with no tools or scale.

c. Avi: This will convert the current selection into an AVI movie file, which can be viewed using Windows Media Player. Compression options vary depending on what Codecs are installed on the PC.

d. Matlab file: This will convert each frame in the current selection into a Matlab (*.MAT) file for use with Matlab data analysis software. Specifics on the formatting of the data file can be found in the Researcher Help file.

e. FLIR Public Format: This will convert each frame in the current selection into an FPF file. FPF is a public format that can be used by software engineers to integrate IR images stored with Researcher into custom image processing software. The image format is fully described in the Researcher manual and Help file.

2. Once the output format has been selected and you click OK all of the frames in the selection will be exported to the chosen format.

Part 4: Export a single image file

1. To export a single IR image, select Image > Save As from the pull-down menus. The save options are as follows:

a. IR File: This will save the image in an IR format so it can be opened again in Researcher or used with other FLIR analysis software such as Thermacam Reporter and Image Explorer.

b. Bitmap file. only IR: This will save the IR image as a BMP file with no temperature scale or analysis tools.

c. Bitmap file. IR, Scale and Analysis: This will save the IR image as a BMP file with the temperature scale and all analysis tools.

d. Matlab file: This will save the IR image as a Matlab (*.MAT) file for use with Matlab data analysis software. Specifics on the formatting of the data file can be found in the Researcher Help file.

e. CSV file: This will export the entire image into a text file where each pixel temperature in the image is separated by a comma. CSV is a standard format that can be read by many programs such as Microsoft Excel.

f. FLIR Public Format: This will save the IR image as an FPF file, which is a public format that can be used by software engineers to integrate IR images stored with Researcher into custom image processing software. The image format is fully described in the Researcher manual and Help file.

g. JPEG file: This will save the IR image as a standard JPEG file without the temperature scale and analysis tools.

Part 5: Save an area as a CSV text file

1. An area box, circle, or polygon tool can be exported as a text file with a user-defined delimiter. The resulting text file will contain each temperature value in the selected area separated by the delimiter. To export an area:

Click me to see a larger imagea. Select Image > Save Area As from the menus. Select the area of interest from the list and then type a delimiter. The Delimiter is the character that separates each temperature value in the text file. A comma is the default selection and the most commonly used delimiter, but you can change this to any character.

b. The Rotated check box will rotate the area 90 degrees when it is exported (new in Researcher 2.7 Pro).

c. The last step is to set a filename and location for the text file. Once all the settings are made, click OK to save the new text file.

Note that in Researcher 2.7 Pro circles and polygons will retain their shape when exported to CSV format. Previous versions would save a rectangle regardless of what shape is used on the image.

 

Letter's to the Editor [top]

RE: Infrared Thermography Finds Overheating Motors

One very unusual cause of motor overheating that I've come across is called Harmonic Distortion. This refers to the presence of voltage and current harmonics in the power supply. Simply explained, power in the US is supplied at 60 Hz, but harmonic frequencies (120 Hz, 180 Hz, 240 Hz, 300 Hz, ...) are also present at some level -- normally below 2% total. The fifth harmonic in particular (300 Hz) causes a counter-rotational torque which can overload an electrical motor and result in overheating and motor mortality. It's relatively easy to find with portable tools (like from Fluke), but could be costly to repair. Oddly enough, the harmonics are usually caused by nonlinear electrical equipment (heater controllers, variable frequency drives, various electronics, ...) on the same circuit.

Another uncommon cause is a poor grounding circuit in the building.

Sorry, no thermograms. This one was obvious enough to use a thermocouple!

Mark Morgenlaender

 

Brainteaser of the Month  [top]

Click me to see a larger imageHere is this month's brainteaser. First reader to email me with the correct explanation of the thermogram receives a gift from ITC. Please put "Brainteaser" as the subject of the message.

Click here to email your guess

Do you have an interesting image that you think would stump other thermographers? If so please email me your image (preferably in native .img, .jpg, .tif, .tgw, or .tmw format) with an accompanying visible photo and explanation. If your image is used, you receive a gift as well.

 

Last Month's Brainteaser [top]

August Brainteaser thermogramOur readers are spending a lot of time in their gardens it seems. Most of you correctly guessed this as a landscape lighting fixture.

Congratulations to our winner Lewis Shaw of Brunswick EMC in Shallotte, NC, and a special thank you to Bernie Lyon at ITC for supplying the images. Lewis receives our special low emissivity traveling coffee mug for his correct guess (Bernie already has more mugs than he can use)!

 

Past Issues  [top]

Click the links below to view past issues of this newsletter:

All past issues from February 2000 through October 2002

August 2003

July 2003

June 2003

May 2003

April 2003

March 2003

February 2003

January 2003

December 2002

November 2002

 

Upcoming Classes  [top]

Click the links below to see our latest course calendars (in local language).

Americas - Level I

Americas - Level II

Americas - Application, Level III, R&D

Eurasia

Deutschland

France

Italia

United Kingdom

 

About the Infrared Training Center  [top]

The Infrared Training Center offers training and certification in all aspects of infrared thermography use. Our world-class training facilities are located near Boston, Massachusetts, USA and Stockholm, Sweden and have the world's most extensive hands on laboratories for infrared applications. Please join us in exploring the fascinating world of the infrared!

Your comments and suggestions about this newsletter are welcomed and encouraged. If you have an interesting application or case study to share, we encourage you to submit it for publication. Published articles earn credit towards recertification.

Please e-mail Gary Orlove or send regular mail to the Americas office.

Visit our website:

ITC Americas, BOSTON

16 Esquire Road
N. Billerica, MA 01862, USA

Tel: +1-978-901-8405
Toll free: +1-866-TRAINIR
                 (866-872-4647)
Fax: +1.978.901-8832
E-mail:
mailto:info_us@infraredtraining.com

ITC Eurasia, SWEDEN

Rinkebyvägen 19
SE-182 11 Danderyd, Sweden

Tel: +46 (0) 8 753 25 00
Fax: +46 (0) 8 753 26 01
E-mail:
mailto:itc@flir.se

THIS DOCUMENT IS FOR INFORMATIONAL PURPOSES ONLY. INFORMATION PROVIDED IN THIS DOCUMENT IS PROVIDED 'AS IS' WITHOUT WARRANTY OF ANY KIND. The user assumes the entire risk as to the accuracy and the use of this document. The Infrared Training Center newsletter may be copied and distributed subject to the following conditions: 1. All text and images must be copied without modification and all pages must be included; 2. All copies must contain the Infrared Training Center copyright notice and any other notices provided therein;
3. This document may not be distributed for profit

©2003 Infrared Training Center  - All rights reserved

 

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