To accommodate various types of loads and positioning requirements, Newport Gimbals are offered in either half-yoke or full-yoke configuration in various sizes. Heidenhain encoders can be integrated to provide sub-arcsec level accuracy and sensitivity, metrology services are provided for orthogonality and axis alignment. Motorized mirror mounted gimbals are also available in various configurations.

Nyquist limitformula

Newport Motion has extensive experience in designing and building motorized gimbal mounts. With a global network of over one-thousand gimbals currently active around the globe, Newport understands the importance of building and motorizing mounts for high performance deployment across numerous applications. Newport Gimbals are at present used for: target simulation, target tracking, camera calibration, sensor calibration, telescope alignment, weapons testing, and general optical alignment and adjustment. Newport Gimbals are also used to test and characterize gyroscopic sensors for inertial navigation systems. Azimuth, Elevation and Roll assemblies are available with Newport RV and URS family stages.

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What isNyquist limitecho

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The simplest sound wave is an oscillation between two amplitudes. A sampled waveform thus needs at least two sample points per cycle. Put another way, the wave's frequency must not be above half the sampling frequency. This limit is called the Nyquist limit of a given sampling frequency. Sine wave at 1/2 sampling rate with two samples per cycle If a sine wave higher than the Nyquist frequency is sampled, a sine wave of lower frequency results. This effect is called aliasing. Sine waves above 1/2 sampling rate (blue) and resulting aliases (orange) Since an alias is no different than a normally sampled wave of the same frequency, aliasing can be avoided only by removing frequencies above the Nyquist limit before sampling.

Since an alias is no different than a normally sampled wave of the same frequency, aliasing can be avoided only by removing frequencies above the Nyquist limit before sampling.

If a sine wave higher than the Nyquist frequency is sampled, a sine wave of lower frequency results. This effect is called aliasing. Sine waves above 1/2 sampling rate (blue) and resulting aliases (orange) Since an alias is no different than a normally sampled wave of the same frequency, aliasing can be avoided only by removing frequencies above the Nyquist limit before sampling.