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Feature Articles

What is a Level Sensor?

A level sensor is a device for determining the level or amount of fluids, liquids or other substances that flow in an open or closed system. There are two types of level measurements, namely, continuous and point level measurements.

25 Sep 2014

An Introduction to Nuclear Density Gauges

A nuclear density gauge is a testing device used to measure the density of a test material with the help of nuclear radiation.

23 Sep 2014

What is a Position Sensor?

A position sensor is any device used for measuring the distance traveled by the body starting from its reference position. It measures linear or angular position in reference to a fixed point or arbitrary reference.

19 Sep 2014

What is an Inductive Sensor?

Inductive sensors are designed based on the needs of proximity sensor technology, to detect metallic or conductive parts without physical contact or where access is difficult.

18 Sep 2014

What is a Photoelectric Sensor?

A photoelectric sensor is an instrument designed to detect the distance, absence, or presence of an object by using a light transmitter such as an infrared, and a photoelectric receiver. It is also referred to as photo eye.

18 Sep 2014

An Introduction to Fabry–Pérot Interferometers

An interferometer is a device used to measure various parameters of light by dividing the light into several light beams.

16 Sep 2014

Basics on Sensors: Output and Wiring

Most of the sensors carry out switching action through solid-state circuits. The connections between load devices and power supplies are made through two or more wires, and the entire setup is known as the electrical interface circuit.

15 Sep 2014

Using Sensors to Capture Body Movement

Motion capture, which is also referred to as motion tracking, is the method of recording movements of people and objects.

11 Sep 2014

Intelligent Sensors

A new generation of intelligent or smart sensors is fast replacing basic sensors across the spectrum of industries. An intelligent sensor comprises a sensing element, an analog interface circuit, a bus interface, and an analog-to-digital converter fitted inside a single housing.

9 Sep 2014

Types of Image Sensors

Image sensors are instruments used for converting optical images into electronic signals. The global image sensors market has grown immensely due to technological advancements in the last decade. This has stimulated diversification in image sensor applications. Image sensors have been placed on board NASA’s Interface Region Imaging Spectrograph (IRIS) spacecraft to capture the first images of the Sun.

8 Sep 2014