FIELD: measuring engineering.
SUBSTANCE: device is made of three movable measuring member and three straps and has a plunger mounted for axial movement inside the housing. The front part of the plunger is conical with 90°C at the top and engages the faces of the movable measuring members. The axis of each movable measuring member intersects the axis of the conical surface of the plunger at an angle equal to half angle of the plunger cone. The generatrices of each of the bars are coplanar to the axis of the plunger conical surface. The device is provided with the guiding members, e.g., made of pins mounted in the housing and longitudinal grooves in the straps. Each of the straps is connected to the measuring members.
EFFECT: enhanced accuracy and reliability of measuring.
4 dwg
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|---|---|---|---|
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RU2147082C1 |
