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Servo- type level meter

A liquid level gauge and servo-type technology, which is applied in buoy liquid level indicators, liquid level indicators with buoyancy probes, liquid level indicators, etc., can solve the problems of frequent battery replacement, large measurement errors, and inconvenience. To achieve the effect of convenient use, stable working voltage and accurate measurement

Active Publication Date: 2008-12-31
范明军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The battery needs to be replaced frequently, which is very inconvenient; and the power supply voltage of the battery is unstable, and the measurement error is large

Method used

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  • Servo- type level meter
  • Servo- type level meter

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The preferred embodiment of the servo liquid level gauge of the present invention is as follows: figure 1 As shown, the float 1 is included, and the float 1 is connected with the driven wheel 5 of the servo liquid level gauge through the measuring ruler 4 . The stepping motor 7 drives the driven wheel 5 to rotate, which can drive the float 1 to move up and down. When the liquid level changes, the buoyancy on the float changes, and the generated torque acts on the force sensor 8, which can accurately measure the buoyancy, and according to the change of buoyancy Measure the liquid level. The servo liquid level gauge also includes a photoelectric collecting element 6 for collecting the height information of the measuring ruler 4 and knowing the position of the float 1 .

[0016] The servo liquid level gauge also includes a contact electrode 3 , which is circular, and the measuring ruler 4 passes through the center hole of the contact electrode 3 .

[0017] Float 1 is pro...

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PUM

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Abstract

The invention discloses a servo liquid level meter which comprises a floater which is provided with measuring elements, such as a temperature sensor, a pressure sensor and an interface sensor, etc., and an operating circuit is arranged in the floater, a contact is arranged on the shell of the floater and connected with the operating circuit in the floater. When the floater moves up and down, the contact can be contacted or disconnected with a contact electrode, when the contact electrode is contacted with the contact, a mainboard of the liquid level meter detects the voltage of a power circuit in the floater by the contact, and charges the power circuit in the floater according to the detection result, the operating circuit can also exchange information with the exterior by the contact. The servo liquid level meter has the advantages of convenient usage, stable working voltage and accurate measurement.

Description

technical field [0001] The invention relates to a liquid level measurement technology, in particular to a servo liquid level gauge. Background technique [0002] Liquid level gauges are widely used in storage and transportation systems in petroleum, chemical, edible oil, beverage, brewing and other industries. By measuring the liquid level of liquid stored in various tanks, the purpose of measuring the liquid stored and transported is achieved. [0003] The principle of the measurement method of the liquid level gauge is that by measuring the liquid level or its change, the liquid volume or its change can be obtained according to the cross-sectional area of ​​the corresponding position of the tank. Then according to the formula m=ρV (in the formula, m represents the liquid mass, ρ represents the liquid density, and V represents the liquid volume), the liquid quantity stored in the tank or the liquid quantity delivered from the tank can be obtained. [0004] There are many t...

Claims

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Application Information

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IPC IPC(8): G01F23/30
CPCG01F23/44G01F23/0023G01F23/0038
Inventor 范明军
Owner 范明军
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