OS523/N NEWPORT ELECTRONICS, OS523/N Datasheet - Page 64

• Manufacturer Part Number: OS523/N
• Description: Temperature Display Panel
• Manufacturer: NEWPORT ELECTRONICS

Specifications of OS523/N

• Temperature Measuring Range: -18°C To +1371°C
• Temperature Tester Type: Thermometer - Infrared
• External Height: 167.6mm
• External Width: 218.4mm
• Lead Free Status / RoHS Status: na

A
Appendix: How Infrared Thermometry Works
Thermal Radiation
Heat is transferred from all objects via radiation in the form of
electromagnetic waves or by conduction or convection. All objects
having a temperature greater than absolute zero (-459°F, -273°C,
0 K) radiate energy. The thermal energy radiated by an object
increases as the object gets hotter. Measurement of this thermal
energy allows an infrared thermometer to calculate the object’s
temperature if the emissivity (blackness) is known. Generally, it is
convenient to measure the amount of radiated energy in the
infrared part of an object’s radiation spectrum.
Figure A-1 shows a block diagram of an infrared radiation
thermometer. Energy from the object is focused by the lens onto the
detector. As the detector heats up, it sends out an electrical signal,
which in turn is amplified and sent to the circuitry of the
thermometer. The thermometer software then calculates the
temperature of the object.
LENS
OBJECT
AMPLIFIER
DETECTOR
OR
THERMOMETER
CIRCUITRY AND
DISPLAY
SIGNAL OUTPUT TO SERIAL PRINTER
OR PERSONAL COMPUTER
Figure A-1. Infrared Thermometer Block Diagram
A-1