Inferential flowmeters do not measure volume, velocity or mass, but rather measure flow by inferring its value from other measured parameters. Examples of flowmeter technologies that measure inferentially include differential pressure, target and variable area flowmeters. Flow computers are often used to...
How Different Types of Meters Work Capillary Thermal Mass –Uses the thermal heat transferred between gas passing through a very small tube (the capillary) and a set of resistance temperature detectors (RTDs) to measure the mass flow of the gas. Immersible Thermal Mass –Uses the thermal heat...
A positive displacement (PD) flow meter is a type of flow meter that provides high accuracy (±0.1% of actual flow rate in some cases) and good repeatability (as high as 0.05% of reading). These meters do not require a power supply for their operation and do not require straight ...
That's why many people invest in a meter that can measure pH directly. What are pH meters and how do they work? Let's take a closer look!Photo: Measuring pH the old-fashioned way simply involves comparing the color of an indicator solution against a color chart. Electronic pH meters ...
You could do it using a bigger version of a bicycle dynamo, with some sort of a meter in place of the lights to give you an accurate reading. Machines that measure force, power, or speed in this way are called dynamometers. Let's take a closer look at how they work!
Measuring flow: understanding how flowmeters work and the pros and cons of each type of device can help in selecting the right oneRon DiGiacomo
How Does a Coriolis Flow Meter Work? Coriolis mass flow meters measure mass through inertia. A liquid or gas flows through a tube which is being vibrated by a small actuator. This artificially introduces a Coriolis acceleration into the flowing stream, which produces a measurable twisting force ...
Meters were located on the wall outside your home, normally through the wall from your electric panel, and where your gas enters your home, usually in front of your house facing the street. The flow of electricity into the utility meter turned small gears, which measured how much electricity...
Faced with this choice, more drivers would try and drive on the highway during off-peak hours, lowering the congestion during peak hours, and smoothing out the traffic flow. Similarly, with TOD metering, consumers are more likely to use electricity when prices are lower, and do things...
These forces cause electrical current to flow in the cup in small rotating eddies, known as eddy currents. In some applications, eddy currents represent lost power and are therefore undesirable. But in the case of a speedometer, the eddy currents create a drag torque that does work on the ...