摘要:
A display cabinet includes a fiber optic cable having a first fiber optic cable portion introduced into a raceway of a door frame which is divided into fiber optic cable groups each exiting the raceway and being connected to light distributors located along vertical mullions/end frame members of the door frame to illuminate an interior area of the cabinet and products therein. Terminal end portions of individual fiber optic elements of each group are fastened relative to light-emitting holes of individual light distributors. Each light distributor includes a pair of wall portions at opposite sides of a bisecting plane of the light distributor with the light-emitting holes on either side being disposed with axes thereof at two acute though substantially different angles. A pair of ribs at a rear side of the light distributor effect reinforcement thereof and cooperate to fasten terminal ends of each fiber optic element thereto.
摘要:
An activity monitor for a multiple channel RF signal acquires time domain data from the RF signal over a wide bandwidth that includes multiple channels. The acquired data is separated by individual channel filters to provide channel data for each channel. The channel data is measured to produce measurement results for each channel, and selected ones of the measurement results are combined for display as a simultaneous display. A selected portion of the acquired data is converted to the frequency domain to provide a spectral display as part of the simultaneous display.
摘要:
A display device is formed from a fiber optic bundle by stripping a portion of the sheath from the bundle and thereafter twisting the exposed fibers together, heating the fibers to form a permanent bend therein and then applying a shock to the fibers to untwist the same. In an alternative method, the stripped fibers are spread into a desired pattern by an oscillating pin and an adhesive applied thereto to retain the fibers in the pattern formed by the pin.
摘要:
Time correlation of signal to distortion characteristics is achieved by acquiring time domain data for a frequency band representing a communication signal, the communication signal having multiple channels. The time domain data is simultaneously converted to frequency and demodulation domain data in sequential time blocks. The frequency and demodulation domain data are processed to obtain respectively frequency and demodulation domain measurements. The resulting measurements are displayed simultaneously as a function of time for all the time blocks and/or for a selected one of the time blocks. An ACLRogram display provides a display having a time axis and a frequency axis in the form of bars spanning the frequency band for each time block with each bar being divided into frequency sub-bands representing a main channel and adjacent side channels, the shading of each segment of the bar representing a measurement value for that segment.