Category Archives: ELECTRONICS

Acoustic Wave Technology Sensors

Acoustic wave devices have been in commercial use for more than 60 years. The telecommunications industry is the largest consumer, accounting for ~3 billion acoustic wave filters annually, primarily in mobile cell phones and base stations.

These are typically surface acoustic wave (SAW) devices, and act as bandpass filters in both the radio frequency and intermediate frequency sections of the transceiver electronics. Several of the emerging applications for acoustic wave devices as sensors may eventually equal the demand of the telecommunications market.

This is a preview of Acoustic Wave Technology Sensors. Read the full post (306 words, 1 image, estimated 1:13 mins reading time)

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.

This is a preview of MICROELECTROMECHANICAL SYSTEMS (MEMS). Read the full post (2178 words, 12 images, estimated 8:43 mins reading time)

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.

This is a preview of CONTROL SYSTEMS. Read the full post (2226 words, 9 images, estimated 8:54 mins reading time)

SOME THING ABOUT EMBEDDED DESIGN

: Image via Wikipedia

An embedded system is a special-purpose computer system designed to perform one or a few dedicated functions. It is usually embedded as part of a complete device including hardware and mechanical parts. In contrast, a general-purpose computer, such as a personal computer, can do many different tasks depending on programming.Since the system is dedicated to specific tasks, design engineers can optimize it, reducing the size and cost of the product, or increasing the reliability and performance. Some embedded systems are mass-produced, benefiting from economies of scale.

EMBEDDED CONTROLLER CHIP

This is a preview of SOME THING ABOUT EMBEDDED DESIGN. Read the full post (2413 words, 36 images, estimated 9:39 mins reading time)