Installation Considerations of an Orifice Plate Flow Sensor

If a constriction is placed in a pipe as shown in figure 1 below, the flow must be higher through the restriction to maintain mass flow at all points.

The basis of a differential flow meter
Figure 1: The basis of a differential flow meter

Since the … Read more

Key factors to consider when selecting flowmeters

Selecting the right flow measuring instrument for a given flow application can be a challenging task given the numerous measurement techniques available. In this article, we look at some of the key pointers that can help you in the decision … Read more

The Principle of Operation of a Vortex Flowmeter

If a bluff (non-streamlined) body is placed in a flow, vortices detach themselves at regular intervals from the downstream side as illustrated in the diagram below:

Principle of operation of a vortex flowmeter
Figure: Vortex shedding flowmeter

In flow measurement the vortex shedding frequency is usually a … Read more

How to Connect a DP (Differential Pressure) Flow Sensor to a DP Transmitter

The DP Transmitter should be mounted with a manifold block as illustrated in the figure 1(a) below to allow for maintenance.

Connection of a DP flow sensor to a DP transmitter
Figure 1(a) connection of a DP flow sensor to a DP transmitter

Valves B and C are the isolation … Read more

Instrumentation Sensors and Transducers โ€“ Multiple Choice Questions & Answers (MCQ4)

Instrumentation Sensors and Transducers โ€“ Questions and Answers

The Answers have been provided at the end of the Questions:

Q1. Which of the following sensors is used to measure displacement?

A. Thermistor

B. LVDT

C. Dall tube

D. None of the above

Q2. Which of the below Read more

Types of Sensors used in Measurement and Process Control

A sensor is an element in a measurement system that detects the magnitude of a physical variable or parameter and changes it into a signal that can be processed by the system. The active element of a sensor is often … Read more