DN Staff

June 2, 2003

2 Min Read
Todd's Fascination with Flight

Now he always knows how high he is in the sky, thanks to a portable altimeter he designed using a micromachined pressure transducer. By exploiting the inverse relationship between air pressure and altitude and compensating for nonlinearities, the device produces acceptable accuracy ( plus or minus 3%) for skydivers in freefall. And after all, Todd lived to tell about it.

Portable altimeter parts list

Amt

Part Description

Allied Part #

1

MPX2200A pressure transducer

858-4998

1

1N5711 Schottky diode

950-1588

1

Digital panel meter

572-0033

1

10muH inductor

871-5400

1

20k potentiometer

970-1175

1

50k potentiometer

970-1185

3

1N5818 Schottky rectifier diodes

568-7309

1

Slide swich

676-9169

1

AAA battery holder

839-3063

Additional parts required: enclosure and cover, resistors, capacitors, voltage reference, switching regulator, and amplifiers


For more details, go to

http://www.manufacturing.net/dn/index.asp?layout=siteInfoWebzine&view=Detail&doc_id=119996

Sign up for the Design News Daily newsletter.

You May Also Like