Abstract: To address issues such as cumbersome operation and limited experimental variables in traditional
illuminance teaching experiments，an integrated illuminance characteristic research instrument was designed．
This device consists of a light source module，detection module，signal processing and display module，and
power supply module．It supports independent control of key variables such as light source distance，power，and
wavelength，enabling comparative experiments to verify the impact patterns of single variables on illuminance．
The experimental results align with theoretical predictions．Teaching practice demonstrates that this instrument
is easy to operate，significantly enhances experimental teaching efficiency，and effectively fosters undergraduate
students＇ scientific inquiry skills and innovative thinking．
