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Line 42: + + − *The user can select a left or right direction, how many steps per interval, the number of iterations and the time delay between iterations. The program tracks the current location of the rail carriage based on the number of degrees rotated.
Calibration Device for Scintillators (view source)
Revision as of 18:28, 5 May 2011
, 18:28, 5 May 2011→Belt System
====Electronics====
====Electronics====
*To operate the linear motion stage, a series of electronics is set up that works together to move the pulley system. First a computer program built with Labview was created to communicate with the Digital to Analog Controller(DAC) via USB. The DAC has pin-outs arranged similarly to a serial port, that control the driver. The R208 microstep driver has various wires connected to the DAC. When the circuits are opened and closed via the Labview program, the stepper motor steps forward or backward. From the driver, the 5V logic power wire is connected to the 5V output on the DAC and the 24V, 2 Amp power driver wire is connected to the power supply. The logic ground and power ground are also connected to the power supply ground. The stepper motor in use is a 1.8 degree high-torque model with a four wire connection.[[File:Electronic Setup.JPG|thumb|Electronics]]
*To operate the linear motion stage, a series of electronics is set up that works together to move the pulley system. First a computer program built with Labview was created to communicate with the Digital to Analog Controller(DAC) via USB. The DAC has pin-outs arranged similarly to a serial port, that control the driver. The R208 microstep driver has various wires connected to the DAC. When the circuits are opened and closed via the Labview program, the stepper motor steps forward or backward. From the driver, the 5V logic power wire is connected to the 5V output on the DAC and the 24V, 2 Amp power driver wire is connected to the power supply. The logic ground and power ground are also connected to the power supply ground. The stepper motor in use is a 1.8 degree high-torque model with a four wire connection.[[File:Electronic Setup.JPG|thumb|Electronics]]
*The user can select a left or right direction, how many steps per interval, the number of iterations and the time delay between iterations. The program tracks the current location of the rail carriage based on the number of degrees rotated.
[[Front Panel Control.JPG|thumb|Front Panel]]
====Structure====
====Structure====
*The main feature of the linear motion stage is the heavy duty optical rail the carriage moves along. Two pulley mounts designed in Turbocad and fabricated out of aluminum are used to hold up the pulleys and attach the stepper motor. The mounts are fasted to the optical rail using bolts attached to rail clamps. A belt is placed connecting the two pulleys and is tightened using the rail clamps on the optical bar. The rail carriage that will house the calibration source is attached to the belt via a metal clamp. The linear motion stage will not only be effective moving precision distances to calibrate the fiber array, but it is rigid enough to be used as a structural beam in the construction of the tagger microscope.
*The main feature of the linear motion stage is the heavy duty optical rail the carriage moves along. Two pulley mounts designed in Turbocad and fabricated out of aluminum are used to hold up the pulleys and attach the stepper motor. The mounts are fasted to the optical rail using bolts attached to rail clamps. A belt is placed connecting the two pulleys and is tightened using the rail clamps on the optical bar. The rail carriage that will house the calibration source is attached to the belt via a metal clamp. The linear motion stage will not only be effective moving precision distances to calibrate the fiber array, but it is rigid enough to be used as a structural beam in the construction of the tagger microscope.