| 摘要 |
FIELD: measuring equipment engineering, possible use for engineering modern precision accelerometers. ^ SUBSTANCE: accelerometer contains sensitive element with force indicator and shift indicator, amplifying-transforming block, block for scale coefficient changes, command device and commutator. Block for changing scale coefficient is made in form of direct current amplifier with circuit of serially enabled resistors at its input, and parallel enabled resistors in check connection circuit. To output of amplifier in parallel connected is circuit of parallel connected resistors, and serially - winding of force indicator through circuit of parallel-connected resistors and capacitors. Also, input resistors of amplifier and parallel-connected resistors and capacitors are connected to normally closed contacts of commutator. Resistors of check connection of amplifier and resistors of its circuit parallel to output are connected through normally disconnected contacts of commutator. ^ EFFECT: increased precision when measuring low accelerations. ^ 2 dwg |
