Apparatus for measuring water potential of organic substrate
A technology based on organic matrix and water potential, which is applied in the fields of soil material testing, material inspection, etc., to achieve the effects of high measurement accuracy, good promotion value, and convenient production
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[0019] As shown in the drawings, the present invention includes a pressure control panel 14, a pressure reducing valve 2, a low-pressure pressure chamber 11-2 with a ceramic filter plate, a high-pressure pressure chamber 11-1 with a ceramic filter plate, and a high-pressure gas cylinder 1; :
[0020] Pressure control panel 14: including pressure reducing valve 3, filter 4, six throttle valves (5-1, 5-2, 5-3, 5-4, 7-1, 7-2, four precision reducing valves Pressure valves 6-1, 6-2, 6-3, 6-4 and two precision pressure gauges 8-1, 8-2; the first throttle valve 5-1 and the first precision pressure reducing valve 6-1 series Connect, the second throttle valve 5-2 and the second precision pressure reducing valve 6-2 are connected in series, the third throttle valve 5-3 and the third precision reducing valve 6-3 are connected in series, and the fourth throttle valve 5 -4 and the fourth precision pressure reducing valve 6-4 are connected in series, the inlet ends of the four throttle valves ...
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