Author Archives: biomedin

HEARING AID

EAR HEARING AID PARTSA hearing aid is a device used to help hard-of-hearing people hear sounds better. In the past, a funnel-like amplification cone, called an “ear trumpet” or “ear horn” was used. Also sometimes used was a desk with a built-in amplifier into which a microphone and earphones could be plugged; these worked better than passive ear trumpets but were not portable.

HEARING AID WORKING

MICROELECTROMECHANICAL SYSTEMS (MEMS)

MEMS CHIPS

Microelectromechanical Systems (MEMS) is the technology of the very small, and merges at the nano-scale into “Nanoelectromechanical” Systems (NEMS) and Nanotechnology.

MEMS are also referred to as micro machines, or Micro Systems Technology (MST). MEMS are separate and distinct from the hypothetical vision of Molecular nanotechnology or Molecular Electronics.

MEMS DEVICES
(MEMS DEVICE)

MEMS generally range in size from a micrometer (a millionth of a meter) to a millimeter (thousandth of a meter). At these size scales, the standard constructs of classical physics do not always hold true. Due to MEMS’ large surface area to volume ratio, surface effects such as electrostatics and wetting dominate volume effects such as inertia or thermal mass. Finite element analysis is an important part of MEMS design.

CONTROL SYSTEMS

A control system is a device or set of devices to manage, command, direct or regulate the behaviour of other devices or systems.CLOSED LOOP CONTROL SYSTEM

There are two common classes of control systems, with many variations and combinations:

i.) logic or sequential controls, and feedback or linear controls.

FEEDBACK CONTROL SYSTEM

ii.) fuzzy logic, which attempts to combine some of the design simplicity of logic with the utility of linear control.

Some devices or systems are inherently not controllable.

The term “control system” may be applied to the essentially manual controls that allow an operator to, for example, close and open a hydraulic press, where the logic requires that it cannot be moved unless safety guards are in place.

SIMULINK

Simulink, developed by The MathWorks, is a tool for modeling, simulating and analyzing multidomain dynamic systems. Its primary interface is a graphical block diagramming tool and a customizable set of block libraries. It offers tight integration with the rest of the MATLAB environment and both drive MATLAB or be scripted from it.

USES OF SIMULINK

Simulink is widely used in control theory and digital signal processing for multidomain simulation and design.

A number of MathWorks and third-party hardware and software products are available for use with Simulink.
SIMULINK & CODE GENERATION

JOBS FOR BIOMEDICAL ENGINEERS

Here are several web sites available to those searching for a job in the exciting field of biomedical engineering.

Minnesota has long been known to host numerous biomedical companies as is indicated by the University of Minnesota listing of more than 1200 biomedical engineering-related industries in Minnesota. Click here to see their MBBNet Industry database.

If your biomedical engineering job interest includes working anywhere in the U.S., you should look at the web site of Biomedical Engineering Network (BMEnet)

BIOMEDICAL PROJECTS

Various biomedical projects’ titles and abstracts are found in these following educational institutions:

1.) University of Wisconsin

2.) South Dakota State University

3.) Michigan Tech

4.) Monash University

5.) BiomedicalProjects.com

6.)BME INDIA

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