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    Shanghai JSN Micro Flow Meter CO.,LTD as a high-tech industrial products manufacturing and complete sets of product sales, R & D, production, processing and sales as one, with independent import and export rights of enterprises.
    The company's main flow meter, level meter, and pressure controller, temperature controller, analytical instruments and other various types of instrumentation. To solve all kinds of problems, and provide complete sales service for customers with professional technical point of view.
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How does a flowmeter work

Date:2019-11-22 source:

The basic principle of ultrasonic flowmeter selection of time-difference accurate measurement: one camera sends data signal across the wall thickness, medium, another side wall thickness, is received by another camera, in addition, the second camera sends data signal is also received by ** cameras.Because suffer from the harm of media flow, both have jet lag Δ t, according to the measure to calculate the water flow V associated with jet lag Δ t in the middle of the computation V = (C2) / 2 l x Δ t, which can obtain total flow value Q.

How does a flowmeter work

Principle of flowmeter operation

Rate of turbine flowmeter is a key type of steam flowmeter, when be through the turbine flowmeter flow sensor, under the effect of fluid, pressure centrifugal impeller rotation, the rotation speed ratio and pipe is proportional to the mean flow, in addition, leaf periodically laser cutting magnetic induction line caused by permanent magnets, magnet coil magnetic flux changed, according to the current of the magnetic, magnetic induction of pulsating around the magnet coil voltage data signals, namely the edm data signals, this electrical pulse data signal frequency and the flow of traffic.

Part of the key to the accurate measurement of the elliptic gear flowmeter is composed of two mutually toothed elliptic transmission gears and the shell.Between rounds 1 and 2 change to another rotation, driven by a will to crescent measured medium capacity for the enterprise again by the import to the exit, therefore, oval gear flowmeter turn every week to be discharged by the medium quality of crescent capacity of 4 times, so according to the traffic volume of elliptic gear comets meter Q can be calculated out.

The principle of the open channel flowmeter is to use the ultrasonic principle, according to the accurate measurement of liquid liquid level meter height width ratio, and then through the instrument equipment internal microcontroller and calculation to obtain the total flow.Because of non-contact measurements, open channel flowmeters can be used in extreme natural environments.Under the control of the microcomputer, the open channel flowmeter sends and receives ultrasonic waves. Based on the transmission calculation time, the distance between the open channel flowmeter and the liquid level measured can be calculated, and then the ratio of height to width of the liquid level meter can be obtained.

M3 /h, a common enterprise in engineering projects, can be divided into instantaneous Flow Rate and Total Flow. Instantaneous Total Flow refers to the amount that passes through a closed pipe or open channel in a reasonable cross-section within the enterprise.The cumulative total flow is the amount of fluid flowing through a closed pipe or open channel at a reasonable cross section during an interval of time (one day, one week, one month, one year).According to the integral of instantaneous total flow rate, the cumulative total flow rate can also be calculated. Therefore, the instantaneous steam flow meter and the cumulative steam flow meter can also be converted between each other.

Shanghai cixi instrument co., ltd. was established in 2011, which is the beginning of cixi's r&d and production of high quality and high precision flowmeters. We have introduced Siemens CNC machining center system, cutting accuracy is higher than 0.001mm, and the products have obtained national multiple invention certification, and the production strictly implements ISO9001 certification.At the same time, we also provide customized instrument system solutions, with a strong research and development capacity 3 to 4 weeks to high quality delivery.


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