Dual magnetic circuit magnetic bead method and optical method.
1. The dual magnetic circuit magnetic bead method is a measurement method without sample interference and is mainly used in advanced fully automatic coagulation meters. The magnetic field is used to separate the magnetic beads from the coagulation material to measure the coagulation process. This method can accurately measure coagulation time and coagulation indicators while avoiding the influence of sample interference.
2. The optical method uses an optical sensor to detect changes in optical signals in the sample to measure the coagulation process. This method is based on the optical properties of coagulants, such as changes in light absorption, scattering and transmission, to determine coagulation time and coagulation indicators. The optical method has the advantages of high sensitivity, fast measurement speed and stable results, and is widely used in modern blood coagulation analysis.