Electrodynamic characteristics of dry reed relays

The aim of this paper is the analysis of dry reed relay with a special stress put on the possibility of closing without bounces. The assumed mathematical model is the case with one degree of freedom. Three dimensionless parameters have been introduced. They fully characterize the dynamics of the relay, and at the same time simplify the form of the differential equation. When this equation is being analyzed on the analog computer, one obtains the condition of bounceless operation of the dry reed relay. These conditions are related with dimensionless parameters, which is very convenient in practice since they are very easy to measure. The obtained theoretical results have been confirmed by experiments described in this paper.