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SVJ-5型微波土壤含水量测定仪已列入交通部部颁标准《公路土工试验规程JTJ051-81》书中,它是用微波衰减法测量亚砂土、亚粘土、粘土和少量腐殖质土的含水量。平均精度为1％,测速为1～3分钟,仪器体积小,重5公斤左右。为了野外测试方便,已做成全晶体管电路,只需1号电池8节,整仪耗电功率约2.5瓦,正常使用约80小时。
SVJ-5-type microwave soil moisture meter has been included in the Ministry of Communications issued a standard “Highway Geotechnical Test Procedures JTJ051-81” book, which is the use of microwave attenuation method to measure sub-sand, clay, clay and a small amount of humus soil Water content. The average accuracy of 1%, speed is 1 to 3 minutes, the instrument is small, weighing about 5 kg. For the field test convenience, has made a full transistor circuit, only 1 battery 8, power consumption of about 2.5 watts, the normal use of about 80 hours.