SU111401A1 - Non-floating level gauge - Google Patents

Description

A non-floating level gauge is designed for operation in liquid environments containing gas inclusions.

Level gauges based on the ultrasonic principle of operation, ne, are novelties; however, the known level gauges are inoperative under the conditions of liquids containing gas inclusions, due to the reflection of ultrasound from gas nozzles.

The liquid level using the described level gauge is determined by the magnitude of the decriment of the damping of the vibrator vibrations, and the immersion of the latter in the liquid, which entails a change in the power supply current of the vibrator exciter.

The present level meter provides for discrete and smooth measurement. In the discrete measurement, a series of ultrasonic ultrasonic vibrators operating in a resonant mode and varying the supply current of their pathogens depending on the depth of the vibrators in the liquid, are used in height at the required distance from each other. For a continuous continuous measurement, one vibrator with attached vertical rods is used, operating in a resonant mode and smoothly varying the supply current of the exciter depending on the depth of the rods in the liquid.

FIG. 1 shows a level meter circuit for a discrete measurement; in fig. 2 - cxeiia leveling for smooth measurement.

In a vessel / containing a liquid, immersed ep, enclosed in housing 2, is immersed. The housing is made of a nonmagnetic material with low electrical conductivity and is divided inductively. pathogens 5 and vibrators 4.

Thus, only vibrators are immersed in the liquid, and the pathogens are protected from the effects of liquid.

As the level of the liquid rises, an ever increasing number of vibrators (zhizyvaetsya below its level, thanks to a man you can judge the damage of ULO 11

not occupied by the liquid, according to: from the menu of the nutrition regime of the corresponding exciter,

In the case of a non-magnetic material 5, the exciter 6 is vertically distributed, the vibrator 7 of which is equipped with rods 8.

When the liquid level changes, the rods gradually sink into it, smoothly and continuously changing the mode of the exciter, which corresponds to a continuous, smooth indication of the level.

PRIORITY AREA

1. Bespon.chavkozy level gauge u.ty ultras; |; of the new type, of that, and often because it is not measuring the levels of liquids containing gas inclusions; it is made in a series of distances but at an altitude at the required distance from one another of ultrasonic vibrators operating in The resonant mode that changes the power supply current of its own excites. 1, depending on the city of immersion of the vibrators in the liquid.

2. Bezpoplavkovy} roviemer on n. I, for example, that, in order to protect the pathogens from the effects of the liquid, they are enclosed 15 KopHjc from a non-magnetic material with a low electrically conductive conductivity, which separates the excitators inductively connected to each other and vibrators.

3- Modification of non-Allah level gauge on PP. 1, 2, characterized in that the level gauge is made in the form of a single vibrator with verticals / (attached to it) rods operating in a resonant mode and smoothly varying the threading current of its exciter depending on the depth of the rods in the liquid.

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