摘要:
A goggle based light-weight VOG system includes an integral calibration laser and at least one digital camera connected to and powered by a laptop computer through a firewire connection. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the goggle base. An EOG system may also be incorporated directly into the goggle. The VOG system may track and record 3-D movement of the eye, track pupil dilation, head position and goggle slippage. An animated eye display provides data in a more meaningful fashion. The VOG system is a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems.
摘要:
A goggle based light-weight VOG system includes at least one digital camera connected to and powered by a laptop computer through a firewire connection and allows for high speed pupil dilation tracking. An EOG system may be incorporated directly into a goggle base. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the goggle base. The VOG system may track and record head position and goggle slippage. An animated eye display may provide data in a more meaningful fashion. The VOG system may be a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems.
摘要:
A goggle based light-weight VOG system includes at least one digital camera connected to and powered by a laptop computer through a firewire connection. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the goggle base. An EOG system may also be incorporated directly into the goggle. The VOG system may track and record 3-D movement of the eye, track pupil dilation, head position and goggle slippage. An animated eye display provides data in a more meaningful fashion. The VOG system is a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems.
摘要:
The above objects are achieved with a compact neuro-otologic testing device and method of utilizing the same according to the present invention. The device according to the present invention provides an image producing laser with a right hand, servo controlled galvanometric based XY interface. The high quality closed loop servo control system that can drive the target (i.e. the laser image) in excess of 1,000,000 degrees/second2 and at velocities in excess of 12000 degrees/second. The bandwidth of the XY interface is greater than 400 Hz, providing high image reproducibility. The repeatability and position accuracy of the target is +−3 arc-seconds and the field of range of the XY interface are about 60 degrees (i.e. about 60 degrees horizontal and 60 degrees vertical).
摘要:
A fluid filter element (10) comprises a pleated filter media (34) having spaced apart pleats (40) and an external filter media surface (38) comprising the external peaks of the pleats (40) and a flexible foam filter media sleeve (42) in contact with and extending between the pleats of the peaks of the external filter media surface (38). The filter media sleeve (42) maintains the spacing between the external peaks of the pleats (40) of the pleated filter media (34). The pleated filter media (34) is for fluid applications and includes fragile material media layers (74, 76) between wire meshes (70, 80).
摘要:
A goggle based light-weight VOG system includes at least one digital camera connected to and powered by a laptop computer through a firewire connection and allows for region of interest image processing. An EOG system may be incorporated directly into a goggle base. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the goggle base. The VOG system may track and record head position and goggle slippage. An animated eye display may provide data in a more meaningful fashion. The VOG system may be a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems.
摘要:
A goggle based light-weight VOG system includes at least one digital camera connected to and powered by a laptop computer through a firewire connection together with an integral visual light stimulus source. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the goggle base. An EOG system may also be incorporated directly into the goggle. The VOG system may track and record 3-D movement of the eye, track pupil dilation, head position and goggle slippage. An animated eye display provides data in a more meaningful fashion. The VOG system is a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems.
摘要:
A fluid filter element (10) comprises a pleated filter media (34) having spaced apart pleats (40) and an external filter media surface (38) comprising the external peaks of the pleats (40) and a flexible foam filter media sleeve (42) in contact with and extending between the pleats of the peaks of the external filter media surface (38). The filter media sleeve (42) maintains the spacing between the external peaks of the pleats (40) of the pleated filter media (34). The pleated filter media (34) is for fluid applications and includes fragile material media layers (74, 76) between wire meshes (70, 80).
摘要:
A synchronous motor includes a housing 20, a stator assembly 30 mounted within the housing 20, a rotor assembly 40 rotationally mounted within the housing 20, a rotor shaft 50 having an upper mounting surface 52 attached to the rotor assembly 40, a bearing assembly 60 coupled to the housing 20 and positioned axially between the rotor assembly 40 and the upper mounting surface 52, a slip ring assembly 70 supported by the housing 20 and positioned axially at least partially within the stator assembly 30 and the rotor assembly 40, and an encoder assembly 80 adjacent the slip ring assembly 70.