Brief Introduction

UVI-1 UV imager is a novel corona discharge instrument based on photomultiplier tube (PMT) and ultraviolet technology, which has excellent functions of distance detection for corona discharge in determined region from surface of high voltage equipments and corona characteristics data analysis. It is mainly applied to detect the incipient fault and performance decreasing of high voltage polymer insulators, high voltage cable and other high voltage equipments for saving the great maintenance and repair cost of the high voltage items, minimizing the nonscheduled electricity failure, improving the power distribution reliability, which will bring huge economic benefits as well as social benefits.

Main Technical Parameters Model UVI-1
Name Ultraviolet Imager(Ultraviolet Corona Observation Instrument)
Item Value Unit
Sensitivity >20 mA/W
Brightness gain 70～80 dB
Brightness output 3～8 cd/m2
Equivalent background illumination <0.25 μlx
Optical resolution >30 lp/mm
Screen resolution >36 lp/mm
Image size 240.5 mm2
Spectral response 200～900 nm
Field of View ≈ 10 0
Relative aperture 5.6～22
Vision adjustable range ±5 0
Measure distance 0.6～100（∞） m
Rated voltage 2.2～3.4 V(2*AA battery)
Rated current <20 mA
Ambient temp. -45～+45 ℃（2 hours）
Storage temp. -55～+65 ℃（2 hours）
Storage temp. +5～+35 ℃（long term）
Relative humidity 95 %
Impact resistance 75 g
Vibration withstand 1.25 mm
MTTF 2000 h
Dimensions 248*70*180 mm
Weight 1.15 KG