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RayTek ThermoView Ti30 Appendix B Infrared Theory Q&A, Why use noncontact infrared thermometers?

Models: ThermoView Ti30

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Appendix B – Infrared Theory Q&A

Q. Why use noncontact infrared thermometers?

A. Noncontact infrared (IR) thermometers use infrared technology to quickly and conveniently measure the surface temperature of objects. They provide fast temperature readings without physically touching the object. The temperature is shown on the LCD display.

Lightweight, compact, and easy-to-use, IR thermometers and thermal imagers can safely measure hot, hazardous, or hard-to-reach surfaces without contaminating or damaging the object. Also, infrared thermometers can provide several readings per second, as compared to contact methods where each measurement can take several minutes.

Q. How does IR work?

A. IR thermometers capture the invisible infrared energy naturally emitted from all objects. Infrared radiation is part of the electromagnetic spectrum, which includes radio waves, microwaves, visible light, ultraviolet, gamma, and X-rays.

Infrared falls between the visible light of the spectrum and radio waves. Infrared wavelengths are usually expressed in microns with the infrared spectrum extending from 0.7 microns to 1000 microns. In practice, the 0.7 to 14 micron band is used for IR temperature measurement.

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RayTek ThermoView Ti30 Appendix B Infrared Theory Q&A, Why use noncontact infrared thermometers?, How does IR work?

Contents

User’s Manual ThermoView Ti30 Contents Qualitative and Quantitative Temperature Measurements Appendix B Infrared Theory Q&A Glossary Warranty Information Customer Service Contact Information Introduction Netd Quick Specifications Table Unpacking Your New Imager First, the Batteries Removing the Battery Pack Battery Packs Normal Charge Cycle Charging the Rechargeable Battery Pack Docking Station LED Indicators Attaching the Wrist Strap Getting Started Displaying Images Turning the Unit On Information Screen Normal Mode Keypad Settings and Controls ThermoView Imager Settings Switches icons not shown Laser On/Off Toggle Button ThermoView Imager Settings Switches Laser Aperture and Optical Channel Japanese Centigrade/Fahrenheit Toggle Button LCD Backlight Illumination SwitchPalette Switch Measurement Mode Switch Level point Gain and Level ThumbwheelsFocus Wheel Automatic Semi Automatic Location of the Focus Wheel Trigger Main Loop Man Machine Interface Flow Charts Image Recording Procedure Emissivity Adjustment Procedure July 1 Version Recording an Image Quick Image Fix Procedure Array Recalibration Procedure Retrieving an Image Retrieve Mode Downloading and Looking at Images Installing the Software Hooking Up the Docking Station Connecting the Docking Station to Your Computer Connecting the USB Connector to the USB Port InsideIR Main Screen at Program Launch Sync button Downloading Images Download Data Screen Saving Images Contents of Images Folder Setting the Imager Clock July 1 Version Looking at Your Downloaded Images Field USB Port Viewing Thumbnail Images Viewing a Single Image Obtaining the Best Image Importance of Focusing Selecting the Color Palette Selecting the Measurement Mode LevelGain Min Level Gain Max Level Gain Tip Distance to Target Spot Ratio Qualitative and Quantitative Temperature Measurements DS ratio D / S = Optical DiagramField-of-View Environmental Conditions Ambient Temperatures Emissivity Reflected Temperature Compensation Reflected Temperature Compensation File Management Organizing Your Data Uploading Data to Your ThermoView Ti30 Imager Uploading Data to the Imager Editing Data Before Upload RTC OFF Scale Limits Analyzing Your DataSingle Image Screen Sample Image at Original Scale Limits Isotherms Sample Image at Original Isotherm Setting Additional Image Analysis Tools Temperature Table Tab Profile Tab Temperature Table Profile Tab Histogram Tab New Folder Menu Bar Celsius ThermoView Imager InfoExit Fahrenheit Histogram Export Temperature TableExport Image Create Report Tile Horizontal Copy Profile ChartContents Cascade Thermographic Report Reporting Your Findings Appendix a Technical Reference Imager Accuracy Chart Typical Emissivity Values Imager Reading Error vs Source DS Aluminum Unoxidized Ni-Cu Gob How does IR work? Why use noncontact infrared thermometers?Appendix B Infrared Theory Q&A Emissivity How to assure accurate temperature measurement? Field-of-view Distance to spot ratio What are the most popular applications? How to take temperature measurement? Glossary Calibration Source Background TemperatureBlackbody Calibration Far Field Display ResolutionDrift EMI/RFI Noise Gray Body Focus Point or DistanceFull Scale Full Scale Accuracy Minimum spot size LaserLoop Micron or µm Pyroelectric Detector Optical ResolutionNon-Gray Body Optical Pyrometer Repeatability Reflected Temperature CompensationResolution Relative Humidity Spectral Response Storage Temperature RangeTemperature Temperature Coefficient or Ambient Derating Transfer Standard Temperature ResolutionThermal Shock Time Constant