BC4-1 multi-channels instantaneous signal acquiring apparatus was developed by our institute. In this paper

the apparatus has been introduced with its functions

technical targets. Operating modes and so on. During the process of developing this apparatus

we referenced the similar apparatuses in home and abroad

and also considered the characteristics of field measurements of geotechnical engineering

and therefore this apparatus has distinctive advantages

such as small volume

light weight

flexible power supply

simple and direct operating

and so on. We wish this apparatus will be admitted by the wide engineers and technicians.