[Scope of Application]
Determine the engineering constants such as elastic modulus and Poisson's ratio of the membrane material through longitudinal and latitudinal stress ratio tensile tests. Analyze the stress-strain and stress-strain curves based on experimental data, and study the nonlinear, orthotropic, and inelastic properties of the membrane material under cyclic loading, as well as the stress-strain and stress-strain characteristics.
[Principle and Method]
Method for biaxial tensile testing of a cross shaped plane.
[Instrument characteristics]
① Adopting precision ball screw and original precision guide rail transmission, low noise and low vibration
② AC servo motor drive, three closed-loop control, short motor response time, no speed overshoot phenomenon
③ Equipped with high-precision sensors, 32-bit high-speed processors, 24-bit analog-to-digital A/D high-speed converters (currently the highest in the industry), with a sampling frequency of over 2500 times per second
④ The clamping distance positioning method adopts software free setting and automatic positioning
⑤ The transmission structure adopts international preferred: AC servo drive system+synchronous wheel+synchronous belt+high-precision roller screw, with high operating accuracy, low noise, small vibration, and less drift
⑥ Dual directional control between control box and computer, equipped with fine-tuning switch for easy fine-tuning control according to special requirements
⑦ Conventional protection: mechanical switch protection upper and lower limit travel, overload protection, overvoltage, overcurrent, overheating, undervoltage, undercurrent, and leakage automatic protection, emergency switch manual protection
⑧ The testing software adopts the current popular Microsoft platform, with strong compatibility, rich and clear operating interface, and comes with help documents.
⑨ The software provides open testing parameters with multiple statistical modes, such as full curve, single curve, histogram, line, 3D graph, etc., and can be freely edited and printed
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