Negative pressure fixed volumetric liquid amount dynamic measuring device

Abstract

The invention relates to a negative pressure fixed volumetric liquid amount dynamic measuring device which comprises a tray, a sucking disc, a negative pressure pipeline and a weighing sensor. The sucking disc is installed on the upper portion of the tray, an air faucet which is fixedly installed on the center of the sucking disc is connected with the negative pressure pipeline, and the tray is fixed to the upper portion of the weighing sensor. The negative pressure fixed volumetric liquid amount dynamic measuring device is scientific and reasonable in structural design, rigid fixation of a liquid storage bottle is achieved through negative pressure adsorption, liquid amount fluctuation interference is avoided, liquid amount dynamic accurate measurement is achieved, and the negative pressure fixed volumetric liquid amount dynamic measuring device is easy and convenient to operate and has the advantages of being wide in application range due to the fact that one measuring device can be used for various liquid storage bottles.

Description

technical field [0001] The invention relates to a liquid volume measurement and control device, in particular to a negative pressure fixed volume liquid volume dynamic measurement device. Background technique [0002] In the fields of medical treatment and chemical industry, it is often necessary to measure the liquid volume in the liquid storage bottle. Especially in the medical field, measuring the instantaneous liquid volume in the liquid storage bottle is an important control parameter for the amount of human tissue fluid suction during human treatment. For example, if the instantaneous liquid volume exceeds the normal value, it is very likely that the human artery is damaged, resulting in blood suction is too big. Therefore, if the instantaneous variable of the fluid output exceeding the normal value cannot be accurately measured, medical accidents may occur and life safety may be endangered. [0003] The existing volumetric liquid volume measurement devices, for exam...

AI Technical Summary

Problems solved by technology

Especially in the medical field, measuring the instantaneous liquid volume in the liquid storage bottle is an important control parameter for the amount of human tissue fluid suction during human treatment. For example, if the instantaneous liquid volume exceeds the normal value, it is very likely that the human artery is damaged, resulting in blood suction is too big

Therefore, if the instantaneous variable of fluid output exceeding the normal value cannot be accurately measured, there is a high possibility of medical accidents and life-threatening

[0003] The existing volumetric liquid volume measurement devices, for example, set a float in the liquid storage bottle, and then detect the position of the float through the sensor, and then obtain the liquid volume value, but most of the sensors for detecting the position of the float are set at intervals, and it is impossible to realize stepless (non-interrupted) detection

There is also a weighing type liquid volume measuring device, which uses a tray and a weight sensor to measure the weight of the liquid storage bottle, but its tray can only be used for its own liquid storage bottle, even so, it cannot be used for the liquid storage bottle Effective fixation will cause the bottle body to be unstable when the liquid in the storage bottle changes, which will interfere with the measurement data, resulting in inaccurate measurement and control

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