scope:

This specification covers the requirements for electrical resolvers operating at frequencies of 60 or 400 cycles for the precision transmission or conversion of angular data (see 6.1).

The nomenclature shall consist of the noun, i.e., Resolver, followed by a type designation. (See 6.2). All resolvers having the same nomenclature shall be mechanically and electrically interchangeable for all military applications. The type designation shall be indicated by a combination of digits and letters. Illustrated below is the complete nomenclature for a resolver type 23R32N4:

Resolver 23 R 32 N 4 Noun Size Funct. Imped. Comp. Excit. Input Wind. (1.2.1.1) (1.2.1.2) (1.2.1.3) (1.2.1.4) (1.2.1.5)

The size is the maximum diameter in tenths of an inch. If the diameter is not exactly a whole number of tenths, the next higher tenth is used.

The function is identified by the letter R, the designation for resolver.

The impedance is the nominal input impedance in hundreds of ohms. If the impedance is not exactly a whole number of hundreds, the next higher hundred is used.

Compensation is indicated by a one-letter symbol as follows:

Resistor compensated ----------------- R Winding compensated ------------------ W Resistor and winding compensated ----- B Not compensated ---------------------- N

The excitation frequency is identified by one digit as follows:

Excitation frequency (cps) Code 60 6 400 4

intended Use: