根据文献[1]提出的产生完整四极场的方法,本文提出另一种实现完整单极场的新型结构,并从数学上作了严格证明,然后用有限单元法和二准模拟实验进行了结构优化设计,得到了两种更为简化的结构,这两种结构的场内电位与理想值的相对误差分别小于0.3%和1%。这两种结构可以替代目前单极质谱计中的金属圆柱面电极结构,从而得到一种新型的单极质谱计。 According to the method proposed in [1] for generating a complete quadrupole field, another new type of structure for achieving a complete unipolar field is proposed and proved rigorously mathematically. Then, finite element method and two-quasi- Two more simplified structures are obtained by the structural optimization design. The relative errors between the field potentials and the ideal values ​​of the two structures are less than 0.3% and 1% respectively. These two structures can replace the current cylindrical cylindrical electrode structure in unipolar mass spectrometer, resulting in a new type of monopole mass spectrometer.