太赫茲功率計

THz功率計 太赫茲功率計
太赫茲絕對能量測試系統
Absolute Terahertz Power/Energy Meter

A new USB version of our successful absolute power meter support unit is now available, with continuous FFT display of noise and dynamic as well as digital readout of power levels.

特點

• 測量自由空間光束
• 在電腦上功率顯示
• 通過軟件控制全自動絕對能量校正
• 頻率相關窗口損失校正
• 精確度好于10%
• NEP 典型值 5μW/Hz1/2
• NEJ 1uJ
• 帶寬: 30GHz to 3THz 以上
• 窗口有效面積直徑大于30mm

太赫茲功率測量探頭

The head is a photo-acoustic detector using a closed air-cell and a pressure transducer. Calibration is provided by ohmic heating of a thin metal film within the cell.

太赫茲表頭

The support unit is based around a National Instruments USB-6211 data acquisition module. Additional electronics have been added to provide film heating for calibration and to amplify the signal from the head's microphone pressure sensor. The compiled software, written in LabVIEW, implements a lock-in amplifier and displays the microwave power.