This automatic optical fiber tensile testing system is designed for operator skill independent use in production and laboratory settings. Two basic model configurations permit the user to choose between a setup for standard linear proof testing and with additional mandrels for rotary high strength testing.
The linear version is designed for production proof testing with forces approximately 22 N. Motorized clamps with carefully designed rubber inserts ensure that the secondary coating line is not really damaged in the testing process while at the same time eliminating the need for an external air supply. Amounts of pulling force, pulling speed and hold time are programmable and conveniently available to the operator from the built in LCD touch screen control. Data from tests may be saved and accessed using the USB port or Ethernet interface.
Mandrels of the identical design as with NYFORS’ optical fiber recoaters could be mounted on the proof tester inside the rotary high strength configuration. The fiber is wrapped round the two mandrels which support it with a special clamping mechanism. This way much higher loads can be applied to the fiber, enabling breaking strength tests under controlled circumstances.
Adjustable clamp positioning facilitates testing with the highest force levels as well as testing of short fiber lengths. The compact and lightweight weight design helps make the instrument easy to maneuver in a laboratory environment and also to integrate in a production work bench where space are at reduced. The equipment is really a compact and lightweight instrument suitable for testing the potency of optical fibers up to 30 N. The equipment is developed to meet all sorts of applications in which a strength test needs to be performed.
The equipment is designed with the user in mind. The optical fiber ribbon machine is easily placed in the guided linear clamps, as well as the testing starts automatically with a “One Touch” go button. The built-in microprocessor controls each of the important parameters such as pulling force, pulling speed and hold time. This permits to get a completely controlled test each time.
The machine could be attached to another PC, which enables use of all programmable parameters and settings. The machine is adapted to stand-alone use or to the integration into different subsystems. The device has an extensive ability of logging and saving information like pulling force, pulling speed and fiber diameter and other parameters.
Two recoat injector configurations are available. The PTR307 uses an automated pump to inject the recoat material. The quantity of material dispensed from the automatic injector is controlled by hand through the top-mounted “Inject” button or programmed to the machine utilizing the tablet controller. The PTR307B includes a manual recoat injection system that will require the consumer to manually dispense the recoat material to the mold cavity; a replacement injector for your PTR307B recoater is accessible below. Take note uojthk the automated injector is just appropriate for high-index recoat material, while the manual injector works with both low- and- index recoat material; both of them are sold separately below. Please contact Tech Support for more information.
he manual injector may be mounted to compatible fiber recoaters through the 4-40 screws on the recoater housing (see photo to the correct). Use a 3/32″ hex answer to secure the injector just before use. To connect the PTRRRM towards the recoater mold, tighten the connector at the conclusion of the green plastic tubing, then loosen by way of a 1/4 turn to enable 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 an internal plunger acts 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 in the photo off to the right). Then, to inject the Sheathing line, 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 out your dispenser as this may damage the internal plunger; also take care when re-engaging the threads to avoid cross threading the dispensing screw. Several fill/inject steps may be needed until air is displaced in the system. Use lens tissue plus an acetone or alcohol cleaning means to fix collect any excess recoat material that flows from the mold.