FFS-A fixed depth sampler for ground water was developed to get representative water samples,and the paper introduced its working principle,making-materials and field tests.

• 为了采集具有代表性的地下水样品,自行研制了FFS-A型地下水定深取样器。对该取样器工作原理、制作材料及野外试验等进行了介绍。