Title :
Low cost HIRF troubleshooting and verification method for digital avionics systems
Author :
Kendall, Chris ; Slattery, K.P.
Author_Institution :
CKC Labs. Inc., Mariposa, CA, USA
Abstract :
In the second phase of DO-160 C, Section 20 HIRF type testing, the EUT (equipment under test) is subjected to RF fields in the range 30 MHz-(1.215 or 18 GHz), by radiating the EUT with antenna generated fields. Design engineers are concerned about the high cost of testing to 200(+) V/m. An alternate approach, using 10-15-W amplifiers, a signal generator, and a hand held probe is presented. The total cost of the system is less than $15000 and yields 90% confidence in complying with the DO-160. Alternatively, the equipment can easily be used to pinpoint problems on aircraft. The near-field measurement technique can identify both case and cable penetrations quickly in the 1-100-MHz range. The method has been successfully used for over five years on military aircraft avionic systems
Keywords :
aircraft instrumentation; digital instrumentation; electronic equipment testing; military equipment; radiofrequency interference; 1 to 100 MHz; 10 to 15 W; 30 MHz to 18 GHz; DO-160 C; RF fields; antenna generated fields; cable penetrations; case penetration; cost; digital avionics; equipment under test; hand held probe; high intensity RF; military aircraft; near-field measurement; Aerospace electronics; Costs; Design engineering; Measurement techniques; Military aircraft; Probes; Radio frequency; Radiofrequency amplifiers; Signal generators; Testing;
Conference_Titel :
Digital Avionics Systems Conference, 1991. Proceedings., IEEE/AIAA 10th
Conference_Location :
Los Angeles, CA
DOI :
10.1109/DASC.1991.177190
