What is Optotrak?
We present a Matlab toolbox that allows the user to control and collect data using Northern Digital’s Optotrak system. The Optotrak is a modular motion capture system, which tracks the positions of infrared markers. The body’s position, orientation as well as all the marker position data can be obtained simultaneously.
What is electromagnetic tracking?
Electromagnetic tracking, also simply called magnetic tracking, uses sensors placed at the joints that transmit their positions and orientations back to a central processor to record their movements. While theoretically accurate, magnetic tracking systems require an environment devoid of magnetic field distortions.
What is electromagnetic sensor?
Electromagnetic sensors are non-destructive evaluation technologies and they are widely used in health monitoring and damage detection for infrastructures. In this chapter several existing technologies with various functional theories are briefly reviewed.
Where are electromagnetic sensors used?
Electromagnetic sensors, such as induction coils, hall sensors, giant magnetoresistance (GMR) sensors, anisotropic magnetoresistance (AMR) sensors, magnetoimpedance (MI) sensors, fluxgate sensors, optical magnetometers, atomic magnetometers, and superconducting quantum interference devices (SQUIDs), are being used in a …
How does electromagnetic sensor work?
Electromagnetic sensors function by transforming a quantity to be measured into outputs which are some form of signal (voltage or current), or some type of circuit parameter (which is usually measured by its impedance).
What are electromagnetic sensors?
How many types of ultrasonic sensors are there?
All together there are four types of ultrasonic sensors, classified by frequency and shape: the drip-proof type, high-frequency type, and open structure type (lead type and SMD type).
How is ultrasonic sound detected?
Detection Devices Devices called ultrasonic sensors, transceivers, or transducers can both detect and produce ultrasonic sound. They send out sound waves through a high-voltage electrical pulse and receive back an echo. This echo generates an electric pulse that is converted into a sound within the human hearing range.
Where are magnetic sensors used?
Magnetic sensors are widely used in a variety of consumer products such as printers, scanners, cameras, and flat panels. One of the fastest growing applications of magnetic sensors is mobile navigation – the electronic compass is a must have feature in mobile devices such as smartphones and tablets.