Fiber Optic Scope Source

Digital Electronic

a schematic of an electronic digital water meter?

I want to implement the cirsuit of the electronic digital water meter

I don't think you will find a circuit diagram for a digital water (fluid) meter so easily. But let's analyze what you need to build one:
1) A flow sensor (a "turbine" wheel that outputs pulses), tricky to build a reliable one by yourself....
2) A counter, see http://www.kpsec.freeuk.com/counting.htm
3) A display, and its driver.
Unless you want to buy a complete electronic flow meter, like http://www.rittenhouse.ca/asp/product.asp?PG=1553
or more "professional",

http://www.flowmeters.com/products/index.cfm?task=cat_prod_page&master=yes&master_cat_id=29&cat=yes&cat_id=163#29_163

ELECTRONIC TABLE DIGITAL DRUM $214.99 ELECTRONIC TABLE DIGITAL DRUM

Management of Electronic and Digital Media $151.95 MANAGEMENT OF ELECTRONIC AND DIGITAL MEDIA, 5th Edition, provides the most accurate and current information on the management techniques used in the electronic and digital media industry. Written clearly and concisely, this text covers the most important aspects for future managers in the broadcast, cable, radio, and new media (Web and mobile) industries.

Professional Electronic Compass and Digital Thermometer with Clock and Alarm $27.9 Professional Electronic Compass and Digital Thermometer with Clock and Alarm

Electronic 'Ticker' at the All Digital the Tokyo Stock Exchange $39.99 Eightfish Electronic 'Ticker' at the All Digital the Tokyo Stock Exchange - Photographic Print

Red Digital Numbers of Electronic Exchange Rate Board $29.99 Red Digital Numbers of Electronic Exchange Rate Board - Photographic Print

Management of Electronic and Digital Media (Paperback) $247.35 MANAGEMENT OF ELECTRONIC AND DIGITAL MEDIA, 5th Edition, provides the most accurate and current information on the management techniques used in the electronic and digital media industry. Written clearly and concisely, this text covers the most important aspects for future managers in the broadcast, cable, radio, and new media (Web and mobile) industries.

Electronic LCD Digital Safe $86.95 Key or keyless double security system Up to 8-Digit electronic combination code 2 Emergency keys with hidden lock Number display can be turned off for extra security Self programmable for maximum security Floor or wall mountable Standby battery pack uses 4 "AA" batteries (not included)

Electronic Beeper Digital Body Thermometer $7.99 Features:Electronic Thermometer is easy to read - LCD display, beeping sound let you know when measurement is completedConvenient - serve entire family, keep whole family healthySafe - unbreakable and automatic shut-offFast - 1 minute readout and measure body temperatureAccurate - dependable accuracy +/- 0.1 centigrade, +/-0.2 FahrenheitApplicable body position - Digital Thermometer can be used orally, rectally, and under the armpitTemperature rang - 32 ~ 42 centigrade, 90 ~ 108 FahrenheitMemory function - Electronic Digital Thermometer can store the whole family's temperature dataBody Thermometer powered by 1AG3 button cellSize: 12.3 x 1.7 x 0.9cmWeight: 32.7gAccessory included: a storage case, instructions

Electronic Digital Safe. $44.99 Easy to programme 3-8 digit electronic security code.Pre-drilled anchor points for floor or wall mounting via 4 expanding steel bolts.Grey colour.Made from steel.Digital keypad with LED display.3 digit to 8 digit security code.Incorrect password entry alarm.Digital lock.2 keys included.2 x back up keys for manual override.4 locking bolts and metal hinges.2mm body thickness.Double locking steel bolts and concealed hinges.3mm door thickness.Floor mountable.Wall mountable.Low battery warning.Batteries required: 4 x AA (included).Internal size H24.6, W34.6, D19.2cm.External size H25, W35, D25cm.Capacity 23.3 litres.Weight 9.5kg.

Digital Electronic Lube Meter $515.95 ? Dispense motor oil, ATF, and gear lube. ? Measures in pints, quarts, liters or gallons. ? Narrow nozzle fits into small I.D. ATF fill tubes. ? Easy to read digital display for accurate bulk dispensing. ? .01 increment readout for precise measurement. ? Automatic non-drip nozzle and inline containment filter. ? Two year limited warranty.By Lincoln Lubrication.

Simmons Digital Sound Module for SD7PK Electronic Drum Set $199.99 Simmons Digital Sound Module for SD7PK Electronic Drum Set

Simmons SDMK4 Digital Multi Pad Electronic Drum Set 889406272163 $76.47 Simmons SDMK4 Digital Multi Pad Electronic Drum Set 889406272163

Simmons SDMK2 Digital Multi Pad Electronic Drum Set 889406937048 $38.88 Simmons SDMK2 Digital Multi Pad Electronic Drum Set 889406937048

Simmons SDMK2 Digital Multi Pad Electronic Drum Set 889406619425 $38.88 Simmons SDMK2 Digital Multi Pad Electronic Drum Set 889406619425

Simmons Digital Multi Pad Electronic Drum Set 889406279889 $92.4 Simmons Digital Multi Pad Electronic Drum Set 889406279889

Simmons Digital Multi Pad Electronic Drum Set 889406512931 $92.4 Simmons Digital Multi Pad Electronic Drum Set 889406512931

Simmons Digital Multi Pad Electronic Drum Set 889406473829 $92.4 Simmons Digital Multi Pad Electronic Drum Set 889406473829

Simmons Digital Sound Module For Sd7pk Electronic Drum Set $199.99 Simmons Digital Sound Module for SD7PK Electronic Drum Set

Left Side Versatility With Electronic Drums

How can I create a digital/electronic signature?

You buy one from someone like Verisign.