Hydraulic level measuring system and its measuring method
A technology of leveling and measuring methods, applied in height/level measuring, measuring devices, surveying and navigation, etc., can solve the problems of slow measurement speed, slow measurement speed, large measurement error, etc., achieve automatic high-precision measurement, improve measurement The effect of improving speed and measurement accuracy
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[0056] The invention specifically discloses a hydraulic level measurement system, which combines figure 1 As shown, it includes a liquid storage tank 1 provided with measuring liquid, and a measurement unit 2 connected to the outlet of the liquid storage tank 1 through a communication pipe 3 . The measuring unit is placed on the measuring point and the reference point. The measuring unit is a hydraulic sealing tank, and an absolute pressure sensor is arranged above the hydraulic sealing tank. The absolute pressure sensor is a liquid absolute pressure sensor or a gas absolute pressure sensor.
[0057] combine Figure 3-Figure 5 As shown, in order to eliminate the impact of external wind pressure and loud sound on the system’s atmospheric pressure jitter, the liquid storage tank 1 cannot be directly exposed to the atmosphere, and the top of the liquid storage tank 1 is provided with a small hole 19 or through It is connected with an elongated connecting pipe 20 to communicate...
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