Induction Heating

Induction Heating

คือ กระบวนการใช้ความร้อนเหนี่ยวนำโดยที่ชิ้นงานที่มีคุณสมบัตินำไฟฟ้าได้ถูกวางไว้ในขดลวดทองแดงที่มีการผ่านไฟฟ้ากระแสสลับ ซึ่งทำให้เกิดสนามแม่เหล็กขึ้นภายในขดลวด โดยสนามแม่เหล็กที่เกิดขึ้นนี้ทำให้เกิดกระแสไฟฟ้าไหลภายในชิ้นงานด้วย และเนื่องจากชิ้นงานมีความต้านทานไฟฟ้าโดยธรรมชาติ ดังนั้น การไหลของกระแสไฟฟ้าก็จะทำให้เกิดความร้อนขึ้นภายในชิ้นงาน

หลักการทำความร้อนเหนี่ยวนำนี้เปรียบเทียบได้กับหม้อแปลงไฟฟ้าคือขดลวดทองแดงก็คือขดลวดปฐมภูมิ และชิ้นงานก็คือขดลวดทุติยภูมิ

What is Induction Heating??

Induction heating is the process where an electrically conductive workpiece is placed in a copper coil through which an alternating current flows. The magnetic field created by this alternating current causes current to flow within the workpiece. Since the workpiece has an inherent electrical resistance to the current flow, heat is generated. The induction heating principle is traced back to that of the transformer effect. The primary winding is the coil and the secondary winding is the workpiece.

Induction Heating Benefits

  • Rapid Heating 
  • Rapid Startup 
  • Environmentally Sound 
  • Reduced Scale 
  • Energy Savings 
  • Fewer Defective Parts 
  • Increased Productivity 
  • Greater Consistency 
  • Lower Maintenance 

Suitable instrument for the application 

Metis Series

  • 1 and 2 color Pyrometers 
  • High Accuracy/Repeatability 
  • Self Contained with Adjustable Focus Optics 
  • Laser, Through Lens or Video Sighting 
  • Digital and Analog Outputs 
  • Fast Response and Small Spot Size 
  • Fiber Optic Versions 

PSC Sirius

The Sirius line of Pyrometers was developed to meet the growing demand for small, compact and easy-to-install sensors with first-class optical and electronic characteristics. Sirius-Pyrometers provide digital/analog outputs and operate at short wavelengths, therefore are an excellent choice for measurement of ferrous and non-ferrous metals above 250?C.

  • DG40-N/DS40-N (2-Wire Loop Powered 4-20mA Sensors)
  • Self Contained, Rugged S. Steel Construction 
  • Laser or Green LED ( 4 wire operation ) 
  • Digital communication with Software 
  • Built-in Peak Picker Circuitry 
  • S. SteeI Water Cooling jacket / air purge ( Optional) 
  • Fiber Optic Version 
  • PSC-SSS-1M/2M/3M & PSC-SSS-Laser-1M /2M/3M
  • Low Cost OEM Sensors 
  • Ultra Small Sensor Head or Dual Laser Aiming Version 
  • Short Wavelength for Best Accuracy, 0.3% of reading 
  • Multiple Outputs/Alarms 
  • Ethernet communications ( Optional) 
  • Built-in Temperature Display 
  • High Ambient Temperature Rating of Sensor-up to 120° C 
  • DSF-30NG/ DSF-34 NG Low Cost Fiber Optic Model
  • Wide temperature range from 600?C to 1800?C 
  • Loop-Powered sensor with 4-20mA output (DSF-30NG) 
  • Simple installation and operation 
  • Robust air purge design for maintenance-free operation 
  • Digital RS485 communications (DSF-34NG Version) 
  • Integrated peak picker 

PSC-CS-Laser-2MHDigital, Self Contained Pyrometer

  • High Accuracy, High Repeatability 
  • High Resolution Optics with Dual Laser for Precision Targeting 
  • Loop powered or 4 wire design ( for use with Laser operation) 
  • On-Board or Remote Emissivity Adjustment 
  • Fast Speed of Response with Alarm Output 
  • PSC Connect software for IR sensor parameter configuration 
  • Stainless Steel Construction 

Process Thermal Imaging Systems

  • High resolution for process measurement and control 
  • UPFA detector (640×480 array) 
  • Real time operation….30Hz 
  • Digital communication and multiple 4-20mA outputs (optional) 
  • Used for profiling/controlling temperature of metal slabs 
  • Multiple alarms – Regions of Interests (ROI’s) 


  • -4°F to 2732°F (-20°C to 1500°C) 
  • Manual Focusable Optics 300mm to Infinity 
  • Hot / Cold Spot Detection ( up to 4 spots ) with Audible Hi/Lo Alarms 
  • Onboard CCD camera—640X480 pixels, full color 
  • Video output—PAL and NTSC formats 
  • Real Time 60HZ Frame Rate 
  • Accuracy: 2°C or 2% of Reading 
  • Laser Pointer & Darkness Illuminator 
  • Large 3.5″ LCD display, Color VGA 640 X 480 
  • Palettes: 6 different selections 
  • High Capacity Memory storage: Up to 2G on removable SD Card 
  • Light Weight ( 650g )