earthquake; mobile; observation; data; acquisition; hardware; design; software; design; CLC; Number:P315.62; Document; ID:A; Article; ID:1000-9116(2001)05-0596-04; Besides; the; same; performance; as; the; earthquake; observation; system; possess; used; on; the; fixed; earthquake; station; such; as; wide; dynamic; range; high; resolution; following; special; features; are; necessary; for; the; earthquake; data; acquisition; system; (EDAS); applied; for; mobile; observing; in; order; to; suit; for; running; in; the; field:; a); Reliability.; The; EDAS; must; work; stably; long; time; without; being; cared.; b); Adaptability; to; the; field; environments.; Earthquake; observing; in; the; field; often; encounters; awful; environments; such; as; dampness; dust; and; abnormal; climate; so; how; to; make; the; instrument; run; well; in; the; field; circumstance; must; be; considered.; c); Ability; of; anti-vibration.; The; instrument; for; outdoor; application; must; keep; free; from; being; destroyed; during; being; transported; long; distance; to; the; destination.; d); Storage; capacity.; Because; seismological; data; is; large; how; to; store; and; collect; the; large; amount; data; conveniently; from; the; field; is; always; a; difficult; point; in; the; mobile; observing; system; design.; e); Automation.; Timing; and; positioning; automatically; is; necessary; in; the; field.; f); Power; consumption.; To; reduce; the; power; con-sumption; as; low; as; possible; is; very; important; to; the; mobile; instrument; which; are; powered; with; battery.; g); Ability; of; testing; itself.; Testing; itself; automatically; make; it; convenient; in; the; fieldwork.; h); Portability.; The; instrument; must; be; portable; and; simply; operated.……;