SU1326891A1 - Ultrasonic flowmeter - Google Patents

Abstract

This invention relates to a measurement technique. 1The invention of the invention is the expansion of technical capabilities by introducing an adaptation mode to external conditions. The device monitors the deviation of the current speed and level values from the values recorded in the Speed and Level memory registers, and integrator 4 integrates the flow rate from the previous measurement, the result of which is recorded in the register “Consumption. If one of the parameters (level or flow rate) goes beyond the tolerance, the logical addition circuit 12 will give the command in b. yuk 6 power and all blocks will be included. The device 3 for collecting and processing information will measure the averaged flow rate using several pairs of acoustic transducers, water level using a level gauge 5, calculate the flow rate value, enter the level and speed value into the Level and Speed registers and then transfer the flow meter circuit to its original state control, at which the deviation from the new speed values at one of the selected water levels will be monitored. 1 il. (P (L from 05 00 CD

Description

The invention relates to a measurement technique and can be used in determining the flow rate of a fluid in open streams.

The purpose of the invention is to reduce energy consumption while continuously controlling the flow rate by introducing an adaptation mode to external conditions.

The drawing shows a block diagram of an ultrasonic flow meter.

An ultrasonic flow meter consists of n pairs of acoustic transducers 1, switches 2 for switching pairs of acoustic transducers, information collection and processing device 3, integrator 4, a level gauge 5, a power supply unit 6, storage registers of the first, second, and third - "Flow - 7," Speed - 8, "Level 9, the service for storing meaningful water consumption, flow rate at one of the horizons and the filling level in the channel, the first and second comparison schemes -" Speed - 10, "Level - 11, in which the current value is compared the specified parameters with the values recorded in the registers and the logical addition circuit 12 connected by its inputs to the comparison circuits and the output to the power supply unit.

Ultrasonic flow meter works as follows.

In the initial state, the main blocks of the flow meter are disconnected, the integrator 4, the level gauge 5, the registers, the comparison circuits and the logic circuit are switched on, while monitoring the deviation of the current speed and level values from the values recorded in the Speed and Speed registers. “The level, and the integrator 4 performs the integration of the flow rate from the previous measurement, the result of which is recorded in the register“ Flow.

If one of the parameters (level or flow rate) goes beyond the tolerance, the logical addition circuit 12 will give a command to power supply 6, as a result of which all blocks will be included. The device 3 for collecting and processing information will measure the averaged flow rate (using several pairs of acoustic transducers), the water level (using a level gauge 5), calculate 0

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The flow rate will enter the level and speed values into the Level and Speed registers and put the ultrasonic flow meter back to its original state, at which the deviations from the new speed values will be monitored at one of the selected levels and water level.

The technical and economic effect of the invention is that the cumulative operating time of the most critical units of the flow meter installation is reduced, as a result of which reliability increases and power consumption decreases, adaptation to changing external conditions is provided.

Claims (1)

Invention Formula An ultrasonic flow meter for open streams, containing n pairs of acoustic transducers connected through switches to information gathering and processing devices, a power supply, an integrator, a level gauge connected to an information gathering and processing unit, characterized in that with a decrease in power consumption control of the flow rate by introducing the mode of adaptation to external conditions, it is equipped with the first, second and third memory registers, respectively, "Flow," Speed, "Level circuit logical comparison Neither the first and second comparison circuits, respectively .- "Speed," Level, with the level gauge additionally connected to the first inputs of the third register and the second comparison circuit, which is connected to the output of the level register by the second input, the switches are additionally connected by outputs to the first and second inputs of the second register and the first comparison circuit, the third input of which is connected to the output of the second register, the information collection and processing unit additionally by the first output connected to the second inputs of the first, second and third registers a torym input connected to the integrator via the first register, the logic circuit combining the first and second vhodo.m connected respectively with the first and second comparing circuit and connected to a power supply unit which communicates with the information collection and processing unit.