Loudi electromagnetic flowmeter

Loudi electromagnetic flowmeter

The IT6500 series wide range high-power DC power supply has over 100 models, including output ranges from 800W to 30kW, as well as up to 1000V and 1200A; Not only does the IT6500C series have rich measurement functions and high-speed response, but it also provides the IT6500D series with high performance and stable output. Users can easily choose according to their needs; In addition, the IT6500C series also has a CCCV priority function, which can avoid current overshoot by selecting the response speed of the CC/CV loop and the speed of voltage and current rise and fall. The absorption of reverse electromotive force during the operation of an electric motor involves a wire that passes current, and the cutting of magnetic induction lines by the energized wire generates electromotive force.

A liquid flowmeter is a precision instrument manufactured based on the Karman vortex principle for measuring the flow rates of liquids, gases, and vapors in sealed pipelines.

Liquid flowmeter is a precision instrument manufactured based on the Karman vortex principle for measuring the flow of liquid, gas, and steam in sealed pipelines. Due to the sealed detection element inside the detection body, it does not measure the medium, and the internal movable parts do not require on-site maintenance. Therefore, it is highly praised by users and widely used in the measurement management and process control of textile printing and dyeing, petroleum, chemical, metallurgical pharmaceutical, thermoelectric, papermaking, and fire protection industries Equipped with on-site display, 3.6V battery power supply, external power supply, and 4-20mA output; remote display can be equipped with secondary instrument LCD Chinese display, and can also be equipped with temperature and pressure compensation. Instrument direct reading type, no conversion required, easy to use, reliable quality.

Loudi electromagnetic flowmeter

Even if the peak frequency is higher than the rated bandwidth of the device, filtering is still required at the input of the device to solve this problem. Other applications, such as DC-DC converters and power supply applications, may also require filtering at the input of the current sensing amplifier. The schematic diagram shows the recommended input filtering principle. The parallel inductance of shunt resistors with input filtering compensation less than 1m Ω, as well as high-frequency noise in any application, can have adverse effects on gain, common mode ratio (CMRR), and VOS due to the increase in filtering resistance and the mismatch of related resistance between them. Therefore, input filtering is complex. The impact on VOS is partly attributed to the input bias current.

No movable parts, reliable operation, good performance, long service life

Measure the measured fluid without direct contact with the sensor, with stable performance

Due to less pressure loss, it has energy-saving characteristics compared to differential pressure flow meters

Simple and sturdy structure, easy installation, and minimal maintenance costs

The IT64 series bipolar power supply is designed to meet the needs of industry testing. Due to its current bipolar design and -1 Ω variable output impedance, the IT64 series power supply is not only suitable for charging and discharging various portable batteries, but also can simulate the charging and discharging characteristics of batteries to assist in other tests. One instrument can achieve multiple purposes, greatly simplifying testing equipment and optimizing testing processes. The following focuses on the application of our IT64 Simulator function in practical usage environments. The functional interface diagram of IT64 Bipolar Power Series Simulator shows Soc as the percentage of battery capacity, Voc as the open circuit voltage of the battery, Q as the battery capacity, Vt as the terminal voltage of the battery, Res as the internal resistance of the battery, and I as the charging/discharging current of the battery.

The development of flow measurement can be traced back to ancient hydraulic engineering and urban water supply systems. During the ancient Roman era, orifice plates were already used to measure the amount of drinking water consumed by residents. Around AD * 0, ancient Egypt used the weir method to measure the flow of the Nile River. Dujiangyan Irrigation Project Water Conservancy Project in China uses the water level at Baopingkou to observe the amount of water, etc. In the 17th century, Torricelli laid the theoretical foundation for differential flow meters, which was a milestone in flow measurement. Since then, many types of instruments for flow measurement began to take shape in the 18th and 19th centuries, such as weirs, tracer methods, pitot tubes, Venturi tubes, volumetric, turbine, and target flow meters. In the 20th century, the rapid growth in demand for flow measurement in process industries, energy metering, and urban utilities led to the rapid development of instruments. The leapfrog development of microelectronics and computer technology greatly promoted the upgrading of instruments, and new types of flow meters emerged like mushrooms after rain. So far, it is reported that hundreds of flow meters have been put into the market, and many difficult problems in on-site use are expected to be solved.

China started developing modern flow measurement technology relatively late, and the flow instruments required in the early days were all imported from abroad.

Flow measurement is a science that studies the change of material mass, and the law of mutual change of mass is the basic law of the development of things. Therefore, its measurement object is no longer limited to traditional pipeline liquids. Wherever it is necessary to master the quantity change, there are problems with flow measurement. Flow rate, pressure, and temperature are listed as the three major detection parameters. For a certain fluid, as long as these three parameters are known, its energy can be calculated, and these three parameters must be detected in the measurement of energy conversion. Energy conversion is the foundation of all production processes and scientific experiments, therefore flow, pressure, and temperature instruments are widely used.

Tilt angle sensor is a sensor that measures the change in tilt angle relative to the horizontal plane. In fact, a tilt sensor is an acceleration sensor that uses the principle of inertia. According to basic physical principles, velocity cannot be measured within a system, but its acceleration can be measured. If the initial velocity is known, the linear velocity can be calculated by integration, and then the linear displacement can be calculated. Therefore, it is actually an accelerometer that uses the principle of inertia. Tilt angle sensors are used in various applications for measuring angles. High precision laser instrument leveling, engineering machinery equipment leveling, long-distance distance measuring instruments, high-altitude platform safety protection, elevation angle measurement of directional satellite communication antennas, ship navigation attitude measurement, shield tunneling application, dam detection, geological equipment tilt monitoring, initial firing angle measurement of artillery barrels, radar vehicle platform detection, satellite communication vehicle attitude detection, etc.

When using, the correct usage steps are not only beneficial for the operation of the machine, but also can increase the performance of the flow meter. Therefore, it is necessary to understand the usage steps of liquid flow meters. Below are the correct steps for using a liquid flowmeter:

Before using the pressure sensor, conduct a performance test on it. Connect it to a transparent water pipe, use a water column to increase the sitting pressure, and measure the voltage with a high-sensitivity digital multimeter,

The disadvantage is that a certain straight pipe section is required during installation, and the ordinary type does not have a good solution for vibration and high temperature. There are two types of vortex streets: piezoelectric and capacitive. The latter has advantages in temperature and vibration resistance, but is more expensive and is generally used for measuring superheated steam.

Any fluid that can transmit sound can use a liquid flowmeter; Ultrasonic flowmeter can measure the flow rate of high viscosity liquids, non-conductive liquids or gases. The principle of measuring flow rate is that the propagation speed of ultrasonic waves in the fluid will change with the flow rate of the measured fluid.

Positive displacement flowmeter measures the volumetric flow rate of a fluid by measuring the measuring volume formed between the housing and the rotor. According to the structural form of the rotor, volumetric flow meters include waist wheel type, scraper type, elliptical gear type, etc.

With the continuous improvement of flow measurement requirements in industrial development, the position of liquid flow meters in industrial measurement has been partially replaced by high-precision and convenient flow meters.

A liquid flowmeter is an instrument developed based on Faraday's electromagnetic induction principle for measuring the volumetric flow rate of conductive liquids.

Also known as a rotary flowmeter, it is a type of variable area flowmeter. In a vertical conical tube that expands from bottom to top, the gravity of the circular cross-section float is supported by liquid dynamics.

The float can freely rise and fall inside the cone tube. Under the action of flow velocity and buoyancy, it moves up and down and balances with the weight of the float, and is transmitted through magnetic coupling to indicate the flow rate on the dial.

The sensor has a voltage of 12V on the street. Record data. If there is a linear relationship, it indicates stable performance and can be used.

Specifically, for each measured harmonic component, the center frequency will be set to an integer multiple of the search fundamental frequency, and a zero bandwidth scan will be performed, with the amplitude calculated from the power average of the measurement data. After measuring the harmonics and amplitudes, the total harmonic distortion measurement result will be automatically calculated and displayed in the data report window. To automatically measure the display interface using the harmonic distortion measurement function, the data report window sequentially lists the frequency and amplitude of the fundamental frequency and harmonic components, and provides the total harmonic distortion. According to the measurement report, assuming there are only these two harmonic components in the system, the total harmonic distortion is 3.67%. The result can be manually calculated and verified by the formula. The amplitude difference between the second harmonic and the fundamental frequency in the report is -29.1dB, and the amplitude difference between the third harmonic and the fundamental frequency is -4.4dB. Therefore, the total harmonic distortion is: The harmonic distortion measurement function can automatically measure with one click. It can be seen that the results of the automatic measurement of the middle harmonic distortion are consistent with those of the manual measurement.