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The USDA, ARS, CMAVE requires a Locomotion Compensator, TrackSphere LC-300- 2nd Generation. This will include a 30-cm interchangeable (white or black) walking sphere motion sensor supplied with comput... The USDA, ARS, CMAVE requires a Locomotion Compensator, TrackSphere LC-300- 2nd Generation. This will include a 30-cm interchangeable (white or black) walking sphere motion sensor supplied with computer macro-zoom lens suitable for objects (tick or mite) ranging from 1 - 10 mm. The speed compensation range shall be 0 - 30 cm/s. An object displacement sensor without moving parts or a reflector. Built-in LCD color video monitor. Tracking data are transferred to PC via RS-232 port in real-time speed and direction monitoring during operation. Specifically, designed software for track reconstruction and analysis. Compact size that is easy to install and operate in a laboratory with limited space. The design of the Syntech LC-300 aims to overcome several of the weaknesses of conventional servospheres: * The size of the sphere is limited to 300 mm resulting in a light and compact construction. * The sphere is supported by an aerostatic spherical bearing, which is noiseless and easy to clean. * The displacement detector is based on a CMOS video sensor followed by a digital signal processor eliminating the need for a reflector on the insect. * Only two parameters in the feedback loop between detector and motor drives need to be adjusted by the operator: 1. feedback gain, and 2. Time Constant of the feedback response. * A real-time video display facilitates focusing the displacement sensor and proper adjustment of the illumination (Infrared and visible). The equipment should be delivered to USDA,ARS, CMAVE, 1700 SW 23RD Drive, Gainesville, FL 32608. Any quotes not meeting the minimum specifications will not be considered.