By research of magnetic chains of new magnetoelastic sensors of efforts with the distributed magnetizing windings by method of drawing up the equivalent circuit it is shown that at rather large number of the cascade connected sites of a magnetic chain and accounting of distribution of the magnetizing forces of sections of a winding of excitement decrease in an error of calculation of magnetic chains with the distributed parameters is reached essential (to 23%). It is established that magnetic tension along a magnetic chain is distributed not linearly and changes the sign in a point of a magnetic neutral, and the magnetic flux is changeable and has the minimum value in a point of a magnetic neutral, and at increase in coefficient of attenuation of a magnetic flux degree of nonlinearity of distribution of magnetic tension and inconstancy of a magnetic flux on length of a magnetic chain increases.