Even during the reading process, the repetitive application of an incident pulse gives rise to an increase and a saturation in the echo height in piezoelectric powder. This phenomenon was experimentally measured in detail as a function of the repetition period, the applied field strength, and the driving frequency. An attempt was made to explain the amplified and saturated readout echo theoretically by introducing an elementary model based on the particle rotational mechanism. In addition to the efficient enhancement of the deviation of the particle orientation, a fluctuation component was macroscopically investigated assuming that the increase and decrease is in unequilibrium during the repetitive application of the readout pulse sequence. The fluctuation was considered especially in the reading process to be caused by the deviation of the dipolar field associated with the statice deviation of the particle orientation caused by the two‐pulse sequence. Calculated results derived from the fluctuation mechanism showed satisfactory agreement with experimental results.