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58年诺希柯夫专家来湖南检查物探工作时,曾建议在进行分散流及水化学工作的同时测定水的电阻串,可以及时了解水的矿化程度,提供成果解释的辅助资料。当时由于水电阻仪尚未制出,我们就自制了一种简易水电阻仪,经在郴县试用,结果证明性能良好可以推广。由于当前我国生产的水电阻仪向不能满足各省的需要,极需本着土洋结合的方针自制一些土仪器,所以有必要将这种简易水电阻仪向大家介绍出来互相交流经验。水电阻仪线路图如图1,其中 R_1=500KΩ,为限流电阻。C=0.005μf,R_3=10KΩ,R_4=1KΩ,R_5=5 KΩ,R_6=10KΩ,Rx 为被测电阻。用耳机作平衡
58 years ago, when examining geophysical work in Hunan, when examining geophysical work in Hunan, it has been suggested that water resistance series should be measured while carrying out dispersion flow and hydrochemistry work, so that the mineralization degree of water can be timely learned and an auxiliary data explaining the results can be provided. At that time, as water resistance meter has not been made, we made a simple water resistance meter, tested in Chen County, the results show that good performance can be promoted. Due to the current water resistance meter produced in our country can not meet the needs of various provinces, it is very necessary to make some soil instruments in line with the principle of combining the soil and the sea. Therefore, it is necessary to introduce this simple water resistance meter to each other to exchange experiences. Water resistance meter circuit diagram shown in Figure 1, where R_1 = 500KΩ, for the current limiting resistor. C = 0.005μf, R_3 = 10KΩ, R_4 = 1KΩ, R_5 = 5KΩ, R_6 = 10KΩ, Rx is the measured resistance. Balance with headphones