『Xining small flow mass flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)
1. What is a mass flow meter?
1. What is a mass flow meter? Mass Flow Meter (MFM) is a precision sensor used to quickly and accurately measure the flow rate of process gases. The mass flow meter mentioned here is mainly used for low-pressure, low flow single or mixed gases. Low pressure is generally below 1Mpa, and the maximum can reach 3Mpa; The flow range is generally 0.1 sccm to 5000 slpm; Single gases such as common air, helium, argon, etc. require relative dryness and purity; For mixed gases, it is necessary to specify the type and proportion of gases. 2. What parameters can be obtained from a mass flow meter? The Yidu mass flow meter can accurately obtain five major parameters of gas: real-time temperature, pressure, operating flow rate, standard flow rate, and cumulative flow rate. The units of a mass flow meter are generally SLPM (liters per minute under standard conditions) and SCCM (milliliters per minute under standard conditions), both of which are volumetric flow units under standard conditions. The measurement scale is defined as 101.325KPa and 25 ℃. The composition of a mass flow meter: The Yidu laminar flow mass flow meter mainly consists of six parts: laminar flow components, pressure differential sensors, pressure sensors, temperature sensors, circuit design, and software algorithms. The working fluid air principle of a 5-layer laminar pressure differential mass flowmeter: The laminar pressure differential principle is designed based on the Hagenbauer law. When the gas is in a laminar state with constant parameters such as temperature and pipe diameter, the volumetric flow rate is calculated by obtaining the pressure differential signal at both ends of the laminar flow element. Then, the stan
5, profibus, 0-5V, 4-20mA analog signals or touch screen display panel.
2. How does a mass flow meter work?
The working principle of a mass flow meter is to use an external heat source to heat the measured fluid inside the pipeline, and reflect the mass flow rate of the fluid by measuring the heat changes caused by fluid flow.
. The specific principle and working method are as follows: Basic principle: When the fluid flows in the pipeline, it is heated by an external heat source. Thermal energy flows with the fluid Zheng Sun, and the fluid flow will take away some of the heat, causing a change in temperature. By measuring this temperature change, the mass flow rate of the fluid can be reflected. Measurement method: Constant heating power method: Maintain a constant heating power, measure the temperature difference caused by fluid flow, and calculate the mass flow rate based on the temperature difference. Constant temperature difference method: Keep the temperature difference between the heater and the temperature measuring element constant, and calculate the mass flow rate by measuring the required heating power. This method is relatively simple and easy to implement, so it is widely used in practical applications. Non contact measurement method: To avoid contamination or corrosion caused by direct contact between heating and temperature measuring elements and the measure
Hot Blog
Related AD
