Flow meter

Passive signal and active signal 1. Definition of passive signal and active signal Active and passive refer to whether there is a power supply, which is used to distinguish whether the signal instrument needs to be powered. Analog signals are all active, whether they are two-wire, three-wire or four-wire signals. Two-wire and three-wire signal instruments […]

In the field of instrumentation, there are technical parameters that may seem similar at first glance but actually represent distinct characteristics. Today, let’s delve into the differences and connections between two such parameters: sensitivity and precision in instruments. Sensitivity of Instruments: Sensitivity refers to an instrument’s ability to measure the smallest detectable quantity. The smaller

Definition of Temperature and Pressure Compensation: Temperature and pressure compensation refers to the adjustments made for the effects of temperature and pressure on flow measurements. The most common factors that affect the accuracy of flow measurement are temperature and pressure. To ensure that flow measurements reflect the actual values, these influencing factors need to be

Electromagnetic flowmeters, commonly used for measuring the flow rate of conductive liquids, operate on the principles of electromagnetic induction, as defined by Faraday’s Law of Electromagnetic Induction. They are widely used in various industries such as water treatment, chemical processing, and food and beverage production due to their high accuracy and lack of moving parts.

Accurate measurement of gas flow in large pipelines is crucial for industries like chemical processing, energy production, and manufacturing. Monitoring and controlling gas flow can optimize process efficiency, reduce costs, and ensure safety. Various technologies exist to measure gas flow in large pipelines, each with its own strengths, limitations, and applications. This article provides a

Explosion-proof instruments are specialized devices designed for use in environments where flammable gases, vapors, or dust are present, and where a potential ignition source could lead to catastrophic explosions. These instruments are essential in industries such as oil and gas, chemical processing, mining, and pharmaceuticals, where safety is a critical concern. By their design, explosion-proof

A rotameter, commonly known as a variable area flowmeter, is typically not suitable for horizontal installation due to its design and operating principles. The fundamental working mechanism of a rotameter involves the movement of a float within a tapered tube. As the fluid flows through the tube, the float rises or falls depending on the

1. General This technical specification and its attachments set out the minimum technical requirements of the Buyer for the standard orifice flowmeter required by Company X for the annual production of Project X. The standard orifice flowmeter supplied by the Seller shall comply with the requirements of this technical specification, and any deviation must be

A differential pressure (DP) flow meter is a widely used flow measurement instrument across various industries, including oil and gas, chemical processing, and power generation. It is particularly effective for measuring the flow of gases and liquids, including corrosive gases, when designed with appropriate materials. This type of flow meter operates based on Bernoulli’s principle,

I. Common occasions where ultrasonic flowmeters are mainly applicable 1. Environmental protection field: municipal sewage measurement, factory sewage discharge detection, etc. In this occasion, time difference method and Doppler method ultrasonic flowmeters are widely used. 2. Oilfield: cementing mud flow measurement, oilfield oily sewage flow measurement, water injection flow measurement, etc. 3. Water company: raw