应用模型试验法推算电渔法电流场的研究

A TESTING STUDY ON SIMULATION METHOD TO CALCULATING ELECTRIC FIELDS IN ELECTRIC FISHING

捕鱼电场的测量是电渔法研究中的重要工作之一,其可为改进电极分布及决定电压、电流和功率等参数提供依据。本文介绍了一种模型试验法,经对模型电流场的测量,就可推算出实物电流场的所有参数,而毋需进行实物电流场的测量。本文先从理论上推导出实物场与模型场之间的换算关系,然后以试验结果证实了模型试验法的正确性。

It is important to measure the distribution of the electric field, which will providea basic idea for improving the arragement of electrodes or deciding votage level,current intensity and power. But the measuring work in the full scale electric field isalways complicate. A kind of simulation method is proposed. If the parameters inmodel scale electric field were measured in laboratory, then the corresponding parame-ters in the full scale system could be easily calculated out. In this paper the relation between two systems has been calculated in terms oftheory. The formulae are as in the following: 1) the relation of the geometric dimensions,λ_L= L_f/L_m=γ_f/γ_m=d_f/d_m 2) the relation of the electric potential, ψ_f=I_f·L_m·ρ_f/I_m·L_f·ρ_mψ_m. This simulation method is reliable and it has been proved by the result of theexperiments.