Monday, May 3, 2010

Biosensors


A biosensor can be defined as a device incorporating a biological sensing element connected to a transducer to convert an observed response into a measurable signal, whose magnitude is proportional to the concentration of a specific chemical or set of chemcials (Eggins 1996).
According to the receptor type, biosensors can be classified as enzymatic biosensors, genosensors, immunosensors, etc.

links http://www.ziddu.com/download/9710390/Biosensors.zip.html

An Intelligent Solution for Every Drive Task

* Inverters
o Models Product range
o FR-D 700 Series FR-D 700 Series
o FR-E 700 Series FR-E 700 Series
o FR-F 700 Series FR-F 700 Series
o FR-A 700 Series FR-A 700 Series
* Software
* Service
o Applications
o Catalogues (PDF)
o Selection Guide (PDF)
* Safety solutions
* Silverline
o Silverline

Click to run "Flash" film! More

Inverters

Also on this page:

* Product highlights
* Product range

Frequency inverter drives are a key component of Mitsubishi Electric's factory automation systems. More than 20 years on and with over ten million units sold worldwide, Mitsubishi Electric is still continually contributing innovations to variable-speed drive technology. The latest 64-bit RISC processors, advanced software models and the latest power electronics make today's variable-speed drive solutions from Mitsubishi Electric both powerful and easy to use. Mitsubishi Electric delivers innovative, open, flexible and reliable drive solutions geared to the special needs of individual markets and customers.

Mitsubishi frequency inverters satisfy all the standards and specifications of the European Union's 73/23/EEC directive on low-voltage equipment and the 98/37/EC machinery directive. All products have a CE certificate subject to 89/336/EEC, and also UL and cUL certificates and GOSTÃ’ certification for the Russian market. All important protective functions are included as standard equipment, and all Mitsubishi frequency inverters conform to both the ISO 9001 quality standard and the ISO 14001 environment standard.

The series covers a very broad output range from 0.2kW all the way up to 630kW. Lines include the smallest FR-S500 series for simple applications, the medium-range FR-E700 series and the high-performance FR-A700 series. The product range is complemented by the FR-F740 series that is optimised for the special requirements of pump and fan applications in the HVAC sector.

All frequency inverters feature simple operation and configuration and optimised control and data management facilities. The integrated control terminals, the one-touch digital dial and the multi-language control panel with copy function provide instantly-comprehensible information on current drive status and clear error message displays.

Networked systems are very easy to configure thanks to support for standard open network bus systems including Profibus/DP, DeviceNet, CC-Link, CANopen and LonWorks. Serial RS-422 and RS-485 interfaces and the optional USB port enable multidrop applications with up to 32 stations and connection of the latest PC and process visualisation systems.

SLV Vector Control with Online Autotuning and automatic slip compensation, V/f control with a fully-programmable characteristic and Mitsubishi Electric's advanced OEC (Optimium Excitation Control) technology all help to make these frequency inverters masters of energy conservation. They can achieve maximum power savings of up to 60% compared to conventional mains operation, thus minimising system operating costs.
IMS study confirms Mitsubishi Electric's outstanding drive systems performance:

When it comes to reliability drive technology from Mitsubishi Electric has an enviable reputation. The latest customer satisfaction survey conducted by IMS Research confirms that the Mitsubishi Electric drives are among the best in their class in terms of product reliability.
What can you expect from Mitsubishi Frequency Inverters?

* Conformity to global standards, specifications and certifications
* An open and flexible drive platform
* A broad product range geared to the needs of the market
* Simple operation and configuration
* Optimised control and data management
* Outstanding product reliability

Plus extensive advanced technology functions like:

* SLV- Vector Control and V/f Control (fully programmable)
* Online Autotuning and automatic slip compensation for outstanding speed stability
* Soft PWM function for reduced motor noise
* OEC technology for maximum power savings
* Active current limiting (tripless operation)
* Automatic restart after power failures
* Flexible control units and intuitive configuration and setup

FR Range
Product range
FR-D 720S FR-D 740 FR-E 720S FR-E 740
Output range 0,1 - 2.2 kW 0.4 - 7.5 kW 0,1 - 2.2 kW 0.4 - 15 kW
Power supply (50/60 Hz) Single-phase
200-240V 3-phase
380-480V Single-phase
200-240V 3-phase
380-480V
Output frequency 0.2-400 Hz
Control unit Integrated
FR-A 700 FR-A 741 FR-F 740 FR-F 746
Output range 0.75 - 630 kW 5.5 - 55 kW 0.75 - 630 kW 0.75 - 55 kW
Power supply (50/60 Hz) 3-phase
380-480V or 500V 3-phase
380-480V 3-phase
380-500V (IP54)
Output frequency 0.2-400 Hz 0.5-400 Hz
Control unit Removable

links

http://www.ziddu.com/downloadlink/9704385/FR-A700Catalogy.pdf
http://www.ziddu.com/downloadlink/9704384/FRA500LCatalogy.pdf
http://www.ziddu.com/downloadlink/9704383/FR-F500Catalogy.pdf
http://www.ziddu.com/downloadlink/9704382/FR-E500Catalogy.pdf
http://www.ziddu.com/downloadlink/9704381/FR-S500Catalogy.pdf
http://www.ziddu.com/downloadlink/9704380/FR-F700Catalogy.pdf
http://www.ziddu.com/downloadlink/9704379/EnergyConservation.pdf
http://www.ziddu.com/downloadlink/9704378/FRA500Catalogy.pdf

Automotive Electrical Handbook


Author(s): Jim Horner
Publisher: HP Trade
Date : 1987
Pages : 132
Format : PDF
OCR :
Quality :
Language : English
ISBN-10 : 0895862387
ISBN-13 :

links

Understanding Digital Electronics


Don't be left behind by modern developments in digital electronics! They present a fascinating new world of achievement which can be easy to understand, if you start at the beginning. Everyone is familiar with digital displays on watches and clocks and calculators, for example. Each number is formed from seven rectangular 'light bulbs', with the correct number of bulbs switched on by a digital circuit to light up the number required. Digital electronics, in fact, is based on devices which work on an on/off basis, or 'count' in steps of 1 (i.e., in 'digits'). The basic devices are quite simple, but when interconnected with tens, hundreds or even thousands of similar devices can perform a fantastic range of calculations, store and give out information, solve problems etc., all at fantastic speed. It is the number and complexity of interconnections of such devices that can be bewildering - not how the actual devices work. Their working can be studied in three different ways. Mechanical equivalents in terms of switches and symbols (called block logic), which anyone can understand because you can 'see' how it works. Truth tables which display all possible conditions of a digital device, from which you choose the one you want, e.g., the ten possible states of a digital number display. Binary arithmetic for working out solutions mathematically. Plus, of course, the basic digital circuits involved which provide all the functions required. How digital electronics works, with clear line drawings to illustrate circuits and their applications, is what this book is all about. It starts from first principles and works right through to 'talking' to computers. The author has considerable experience in the field of practical electronics and is noted for his ability to explain technicalities in language that is easy to understand.

links http://www.ziddu.com/downloadlink/9703572/UnderstandingDigitalElectronics.pdf