These devices generally operate by measuring the distance between a reference point at a sensor or transmitter near the top of the vessel and the liquid level.

A pressure transmitter can be used to establish the liquid level in a river, tank, well, or other body of liquid. The pressure at the bottom of a liquid filled container is directly connected to the ...

Point versus continuous level If the objective is to determine if liquid has moved to or beyond a given point, a point-level measuring device, also known as a level switch, can be inserted through a ...

Technical Terms Capacitive Sensor: A device that exploits changes in electrical capacitance to determine the level of a liquid by measuring the dielectric properties between electrodes.

Continuous level (proportional) measurement, on the other hand, indicates the level in a vessel over the full span of measurement. These devices typically are used for process control as well as ...

Figure 3:Scope Capture – Liquid Level Measurement Additional Information By measuring the amplitude of the step, additional information can be determined regarding the liquid.In automotive ...

Because the devices are applicable for a wide range of applications and come with the relevant certifications and approvals, there is no need to keep additional measuring devices in stock.

TDR Detailed Implementation To make a TDR measurement, a pulse must be generated with a fast fall time. This pulse is then sent down a transmission line to the level probe (see Figure 1).Finally, the ...