Experimental evaluation of detectivity of laparoscope ultrasound to urinary system injury during laparoscopic operation
When the probability of the photoelectrons produced by the detector is of Poisson or Gaussian distribution, the detectivity and false alarm probability of the signal are calculated respectively.
In order to reduce the thermal conductivity and heating capacity and increase the detectivity of array, the suspended structure was formed on silicon wafer by chemical etching of KOH.
The system can be used to measure the voltage responsivity and detectivity of infrared detector at different modulation frequency with rapid speed and high accuracy, it meets the need of measurement.
