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Virtual Dictionary

Inertial Measurement Unit

An inertial measurement unit or IMU is a composite sensor, which senses the motion of a body. Comprising three gyroscopes and three accelerometers arranged at right angles to one another, it attempts to track every change in position and axis.

IMUs work via the technique of dead reckoning, assuming that nothing has changed between measurement pulses. No matter how accurate they are, this leads to a slow compound error, where movement along one axis occurs when it is not being actively checked, or continues fractionally longer than believed. These4 errors stay permanently, moving position further and further outside the attested area, unless checked periodically by another method such as GPS.

Below, we offer a selection of links from our resource databases which may match this term.

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Inertial Measurement Unit


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VR Interfaces: CyberMan GVD510-3D
Released December 2005, the CyberMan GVD510-3D head-mounted display is a stereoscopic display unit, with a resolution of 640 x 480. Made by Kopin Corporation, China, this unit is essentially part of the new trend of video eyewear, combining HUD and HMD in one device.

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New Nvidia GPU: A Supercomputer in a PC?
The GPU, or graphics processing unit is the heart of any 3D accelerator graphics care. It is a powerful workhorse, frequently more powerful than a PC?s CPU ? central processing unit ? and dedicated solely to graphics. The pace of GPU advancement has picked up substantially in recent years, with Nvidia and ATI Technologies, going at it hammer and tongs, to try and outdo one another.

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Telemedicine Tele-abused
There is a firm, which specialises in phone and telehealth services to help relieve the stress of hospitalisation. They provide a telephone/television unit next to the beds of more than 160 NHS trust hospitals in the United Kingdom. They may well be abusing their priviledged position.

Fluidhand is a product of the Orthopaedic University Hospital in Heidelberg, Germany. It is the first complete hand prosthesis in which each finger moves separately, without being a separate unit.

One of the first mobile clinical assistants to hit the market, was the Philips MCA in 2006. Created as a partnership between Philips and Intel, this relatively primitive wireless data input unit, was designed to be held in one hand, and interacted with by a stylus in the other.

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Speedy 3D X-rays in the operating room
ORBIT, a new motorised arm X-ray system is being trialled at a surgical unit in Germany, where it is successfully allowing surgery to continue uninterrupted whilst millimetre-precise 3D X-rays are taken of the surgical site, as often as the surgeon requires.

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Home-Use desktop 3D Fabricator debuts
Industry News

The age of cheap, home fabrication and rapid prototyping WITHOUT dedicated facilities, may finally be dawning upon us. A cheap, self-assembly unit, costing little more than a new PC, has been developed by a group of US researchers, which actually has superior capabilities to many high-end commercial fabricators.

The Media Vehicle, is a serious take on VR interfacing, however it is not a serious commercial device. The unit is, for lack of a better phrase, an ?art tool?. It exists to showcase what is currently possible in 2009, not as a device which expects a practical market.

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VR Interfaces: Novint Falcon
Novint Falcon is a commercial grade haptics unit. Essentially, it is a 3D joystick that responds with the full range of force: Weight, shape, texture, dimension, dynamics and force effects.


Industry News containing the Term Inertial Measurement Unit:

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(Press Release) The inertial motion capture suit Moven developed by Xsens Technologies B.V. has won the Overijssel Innovation Award 2007.

The suit is based on Xsens' inertial sensor technology allowing total freedom of move...

(Press Release) InterSense, Inc., specialist in precision inertial tracking technology for simulation and training, is currently providing inertial sensors for the Virtual Convoy Operations Trainers (VCOT) deployed at over 20 U.S. Army and ...

South Korea's Samsung Electronics has said it is considering spinning-off its Liquid Crystal Display (LCD) unit in a bid to streamline its business.

The move comes as the unit saw its sales dip more than 10% last year amid s...

Even when our eyes are closed, the visual centers in our brain are humming with activity. Weizmann Institute scientists and others have shown in the last few years that the magnitude of sense-related activity in a brain that?s disengaged fr...

Its official, video eyewear is taking off in a big way. The latest of these half-breeds between HMDs and HUDs is Seventh Heaven's 'Portable Home Theatre'.

A monoscopic unit, this eyewear unit, actually closer to a HMD than...