I. Product Features

ZY12201C LD/LED Luminance Properties Testing Apparatus is designed for students to understand the basic working principle of semiconductor laser and LED, and principle of automatic power control APC and automatic current control. Thus help    students to master the measurement method of average optical power and input current of these two light sources, and measurement of laser threshold current, as well as the measurement method of light source basic characteristics; understand temperature’s influence on output power, and light source modulation method in practical application, etc.

II. Performance

1. power

• input: 220V±10%.50Hz±10%

1. LD/LED current source

• Providing current (Iop) max: 150mA
• Feedback measuring current (Im) max: 2000uA
• Iop measuring accuracy: ±0.5mA
• Iop resolution: 0.1mA
• Im measuring accuracy: ±5µA
• Im resolution: 1µA
• Temperature controller
• External dimension: 72（H）×72（W）mm
• Control mode: artificial intelligence regulating
• Input signal: Pt100 platinum resistance
• Output specification: 4～20mA
• Measurement range: -200℃～600℃
• Resolution: 0.1℃
• Precision: 0.5
• Alarming range: upper limit; lower limit; positive deviation; negative deviation
• Display: red and green digital tube
• LD laser