Compared with the optical voltage sensor using electro-optic effect or converse piezoelectric effect

the voltage sensor based on electroluminescent effect has the advantages of simple structure

low cost

and no need for carrier light source. A voltage sensor based on electroluminescent effect was manufactured and whose sensing characteristic

frequency response

and temperature drift were studied. It is found that the sensing characteristic has a superlinear relation

but accords with the empirical formula. Due to its poor temperature stability

an empirical formula for sensing characteristics considering the influence of temperature was proposed. In the temperature range of 20～100℃

the measurement error of the proposed empirical formula is less than 3% at the power frequency voltage range of 2.5～15 kV. Then

electroluminescent effect was studied by simulation. At the macroscopic level

an equivalent resistance-capacitor circuit model was established to calculate the current through the luminescent layer

from which the brightness waveform can be inferred. At the microscopic level

a bipolar charge transport model was leveraged for a detailed demonstration of the relationship between the current（flux of charge-carrier） and the brightness waveform. The simulation results of both models show that the phase of the brightness waveform is ahead of the applied power frequency voltage

and the frequency of the former is twice of the latter

which agrees with the experimental results. The research results can provide reference for the application of electroluminescent voltage sensor in the field of electric power.