The high formation solenoid is a method to improve the uniformity on the basis of the conventional solenoid. The uniformity of the solenoid can be improved by various winding methods and combinations of windings. Its shape and volume are smaller than ordinary solenoids, and the uniformity is higher, which effectively reduces the total length of the solenoid. Especially suitable for the measurement of longer samples, it is more convenient to use and more widely used. High-formity solenoids are usually customized according to user requirements, and we can customize uniform magnetic fields for various applications according to user needs.