This automatic optical fiber tensile testing system is designed for operator skill independent use in production and laboratory options. Two basic model configurations permit the user to select between a setup for standard linear proof testing and with additional mandrels for rotary high strength testing.
The linear version is made for production proof testing with forces approximately 22 N. Motorized clamps with carefully designed rubber inserts be sure that the optical fiber proof-testing machine will not be damaged inside the testing process while simultaneously eliminating the requirement for an external air supply. Levels of pulling force, pulling speed and hold time are programmable and conveniently available to the operator with the built in LCD touch screen control. Data from tests may be saved and accessed via the USB port or Ethernet interface.
Mandrels the exact same design as in NYFORS’ optical fiber recoaters may be easily mounted on the proof tester in the rotary high strength configuration. The fiber is wrapped round the two mandrels which support it using a special clamping mechanism. This way higher loads does apply onto the fiber, enabling breaking strength tests under controlled circumstances.
Adjustable clamp positioning facilitates testing with all the highest force levels in addition to testing of short fiber lengths. The compact and light-weight weight design makes the instrument easy to move around in a laboratory environment and also to integrate in a production work bench where space reaches a premium. The equipment is a compact and light-weight instrument perfect for testing the potency of optical fibers approximately 30 N. The equipment is created to meet all kinds of applications in which a strength test must be performed.
The machine is made using the user in mind. The SZ stranding line is easily put into the guided linear clamps, and also the testing starts automatically with a “One Touch” go button. The built in microprocessor controls all of the important parameters including pulling force, pulling speed and hold time. This permits for a completely controlled test every time.
The equipment could be attached to an external PC, which enables usage of all programmable parameters and settings. The device is adapted to stand-alone use or to the integration into different subsystems. The machine posseses an extensive capability of logging and saving information including pulling force, pulling speed and fiber diameter as well as other parameters.
Two recoat injector configurations can be found. The PTR307 uses an automated pump to inject the recoat material. The amount of material dispensed by the automatic injector is controlled manually using the top-mounted “Inject” button or programmed to the machine utilizing the tablet controller. The PTR307B comes with a manual recoat injection system that requires an individual to manually dispense the recoat material to the mold cavity; a replacement injector for that PTR307B recoater can be obtained below. Take note uojthk the automated injector is simply appropriate for high-index recoat material, while the manual injector is compatible with both low- and high- index recoat material; both are sold separately below. Please contact Tech Support for additional information.
he manual injector could be mounted to compatible fiber recoaters through the 4-40 screws on the recoater housing (see photo off to the right). Use a 3/32″ hex answer to secure the injector just before use. To get in touch the PTRRRM to the recoater mold, tighten the connector at the end of the green plastic tubing, then loosen by way of a 1/4 consider permit rotation.
The injector comes with a distribution valve and two-position selection lever for directing the flow of recoat material. A knurled dispensing screw having an internal plunger works as a syringe for your recoat material. To fill the syringe, point the lever downward (i.e., toward the recoat bottle), then rotate the knurled dispensing screw counterclockwise until it spins freely to fill the syringe (shown inside the photo to the correct). Then, to inject the Fiber drawing machine, point the lever horizontally (i.e., facing the knurled screw) and rotate the screw clockwise until close to the end from the travel range is reached. Avoid bottoming out the dispenser because this may damage the inner plunger; also be mindful when re-engaging the threads to prevent cross threading the dispensing screw. Several fill/inject steps may be required until air is displaced within the system. Use lens tissue as well as an acetone or alcohol cleaning means to fix collect any excess recoat material that flows through the mold.