This automatic optical fiber tensile testing system is designed for operator skill independent use in production and laboratory settings. Two basic model configurations allow the user to select between a set up for standard linear proof testing and with additional mandrels for rotary high strength testing.
The linear version is ideal for production proof testing with forces up to 22 N. Motorized clamps with carefully designed rubber inserts be sure that the Fiber coloring machine will not be damaged inside the testing process while at the same time eliminating the necessity for another air supply. Amounts of pulling force, pulling speed and hold time are programmable and conveniently available to the operator through the built in LCD touch screen control. Data from tests can be saved and accessed using the USB port or Ethernet interface.
Mandrels the exact same design as with NYFORS’ optical fiber recoaters could be mounted on the proof tester within the rotary high strength configuration. The fiber is wrapped round the two mandrels which support it with a special clamping mechanism. In this way greater loads can be applied onto the fiber, enabling breaking strength tests under controlled circumstances.
Adjustable clamp positioning facilitates testing with the highest force levels in addition to testing of short fiber lengths. The compact and lightweight weight design helps make the instrument easy to maneuver in a laboratory environment as well as integrate in a production work bench where space reaches reduced. The equipment is actually a compact and light-weight instrument suitable for testing the strength of optical fibers up to 30 N. The equipment is designed to meet all types of applications in which a strength test must be performed.
The device was created with all the user under consideration. The Fiber drawing machine is easily put into the guided linear clamps, as well as the testing starts automatically with a “One Touch” go button. The built-in microprocessor controls all the important parameters like pulling force, pulling speed and hold time. This enables for any completely controlled test each and every time.
The equipment can be attached to an outside PC, which enables use of all programmable parameters and settings. The device is adapted to face-alone use or even to the integration into different subsystems. The equipment comes with an extensive capacity for logging and saving information such as pulling force, pulling speed and fiber diameter as well as other parameters.
Two recoat injector configurations are available. The PTR307 uses an automated pump to inject the recoat material. The volume of material dispensed by the automatic injector is controlled yourself via the top-mounted “Inject” button or programmed into the machine making use of the tablet controller. The PTR307B includes a manual recoat injection system that needs the user to manually dispense the recoat material in to the mold cavity; a substitute injector for your PTR307B recoater is available below. Please note uojthk the automated injector is simply appropriate for high-index recoat material, while the manual injector is compatible with both low- and- index recoat material; both of them are sold separately below. Please contact Tech Support for additional information.
he manual injector could be mounted to compatible fiber recoaters via the 4-40 screws on the recoater housing (see photo off to the right). Utilize a 3/32″ hex answer to secure the injector just before use. To connect the PTRRRM for the recoater mold, tighten the connector at the end of the green plastic tubing, then loosen by a 1/4 turn to allow for rotation.
The injector is equipped with a distribution valve and two-position selection lever for directing the flow of recoat material. A knurled dispensing screw with the internal plunger behaves as a syringe for that 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 optical fiber ribbon machine, point the lever horizontally (i.e., facing the knurled screw) and rotate the screw clockwise until near the end from the travel range is reached. Avoid bottoming the dispenser because this may damage the inner plunger; also take care when re-engaging the threads to prevent cross threading the dispensing screw. Several fill/inject steps may be needed until air is displaced inside the system. Use lens tissue and an acetone or alcohol cleaning solution to collect any excess recoat material that flows from your mold.