DY-2 Butterfly Extensometer Overview The butterfly-type extensometer is a mechanical contact-type displacement meter, and is made for measuring the displacement of materials, so as to obtain the indicators of certain mechanical properties. It has a simple construction and is easy to use, reliable, highly adaptative, economical and durable and recyclable. In addition, the measurement sensitivity may be improved by enlarging the gauge length. The device is light in weight, clear in scale and compact in structure, and dial gauge and dial indicator are optional according to different accuracy requirements. Therefore, it is a necessary and ideal device for material test. Main specifications 1. Maximum size of the test piece clamped: Diameter of column piece: 0-25mm; thickness of tabular piece: 0-25mm. 2. Size range of gauge length 3. Optional scales: Dial gauge: Measurement range: 0-30mm, division value: -.01mm; dial indicator: Measurement range: 0-1mm, division value: 0.001mm 4. Accuracy grade of the dial provided: Grade 1
