Liquid-level monitoring plays an important role in today’s automotive, oil, water, pressure, and gas industries, to name a few. For example, pumping oil into a storage tank requires liquid-level monitoring to prevent spillage. Draining liquid out of a silo into bottles also requires liquid level monitoring for volume control. This article will explain how to …
When measuring pressurized air in other contexts, the choices include gauge pressure (air pressure compared to atmospheric pressure) and differential air pressure (pressure difference between points). Barometric pressure sensors instead measure absolute air pressure. This is the air’s pressure in relation to a perfect vacuum. Technology: For much of our history, barometers depended on the …
Optical pressure sensors detect a change in pressure through an effect on light. In the simplest case this can be a mechanical system that blocks the light as the pressure increases. In more advanced sensors, the measurement of phase difference allows very accurate measurement of small pressure changes. In an intensity-based optical pressure sensor, an …
What is capacitive pressure sensor? A pressure transducer is a device that measures the pressure of a fluid, indicating the force the fluid is exerting on surfaces in contact with it. The capacitance pressure sensor is a pressure measurement device, which converts an applied pressure into a current signal, Like 4-20mA. Capacitive pressure transducers are …
The capacitance pressure sensor is a pressure measurement device, which converts an applied pressure into a current signal, Like 4-20mA. Capacitive pressure transducers are used in many control and monitoring applications, such as flow, airspeed, level, pump systems, or altitude. Working Principle A capacitor consists of two parallel conducting plates separated by a small gap. …
What issues need to be considered when choosing a pressure sensor? What kind of pressure is measured by the sensor, what kind of accuracy the sensor needs to achieve, how is the temperature resistance of the sensor, etc. The following is a detailed introduction. What pressure does the sensor measure? The first thing to consider …
What’s the difference between absolute, gauge and differential pressure sensors? Different applications require different ways of measuring things. In electronic systems, as an example, sometimes we want to know the voltage across a specific component. Other times we’re only interested in the difference in voltage between two points in the circuit. It’s a similar situation …
Absolute VS Gauge VS Differential Pressure Sensor Read More »
A pressure sensor is a device that can sense pressure signals and convert the pressure signals into usable output electrical signals according to certain rules. Pressure sensor output ≥ 20mA Is the power supply of the pressure sensor normal?If it is less than 12VDC, check whether there is a large load in the loop, and …
Some electronic sensors use other properties, such as density, ionization or thermal conductivity, to infer the pressure of a gas rather than measuring it directly. A resonant sensor uses changes in resonant frequency (the frequency at which a gas vibrates most readily) to measure changes in gas density caused by pressure. The sensing element can …
For pressures sensors, if they can’t stand the boiling heat, the freezing cold, corrosive substances, being submerged in salt water, constant exposure to the outside world, they might not be fit for the job. In other applications, corrosive pressure media can present a threat to sensor components such as the diaphragm, or to the integrity …