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由南京农机化所研制和生产的YPS—2型平均值数字应变仪是动态应变放大和平均值数据整理合一的一种便携式仪器。由于应变仪、数据整理仪、桥路和电源等均有机地紧凑地装置成一个整体,携带使用十分方便。特别适合野外田间测试时用。该仪器用于测量结构和材料的动态应变。只要配用相应的电阻式传感器,便可测量并直接读出两条通道的拉力、压力、扭矩、位移和振幅等参数的平均值。仪器还配有一条数字量通道,能同时测出转速或其它脉冲信号。工作原理由电阻应变片来的信号经载波调制式
The YPS-2 average digital strain gauge, developed and produced by Nanjing Agricultural Mechanization, is a portable instrument that integrates dynamic strain amplification and averaging data processing. As the strain gauges, data organizer, bridge and power supply, etc. are organically compact into a whole, easy to carry. Particularly suitable for field testing field. The instrument is used to measure the dynamic strain of structures and materials. Equipped with the corresponding resistive sensor, the average of the parameters of tension, pressure, torque, displacement and amplitude of the two channels can be measured and read directly. The instrument is also equipped with a digital channel that can simultaneously detect the speed or other pulse signals. The working principle of the resistance strain gauge to the signal by the carrier modulation