Disk Drive Test Accessories
Spinstand Head Related
Guzik introduces a new front-end to its Spinstand Models V2002 and DTR 3000, which includes new Headloader Mechanism HLM-2011, new cartridges PAC-2011, and new Universal Preampilifer UP11.
Guzik MR7 amplifier is designed for high-speed operation with RWA-2000 series.
Compared with MR5 head amplifier, it has much wider bandwidth of write and read
channels and significantly faster rise/fall time of write current
The Guzik MR Amplifier Revision 5 is a next generation of the Guzik head amplifiers.
The Guzik MR-5L read amplifier is designed to work with the high-impedance TMR heads. The impedance of such heads can be as high as 1000 Ohm, so it is impossible to achieve a high bandwidth with a high-impedance amplifier. This is the reason, why MR-5L is a current-sense low-impedance amplifier with voltage bias.
Bandwidth from DC to 6 GHz Required for frequency response measurements of high bandwidth analog
Guzik active high-impedance injector is designed for the measurements of frequency response and the calibration of the low-impedance current-sensitive head amplifiers. The injector also provides the ability to evaluate the performance of the head-amplifier heater driver. A current probe can be connected to the injector, in order to measure write current of the head amplifier.
The new generation of Guzik cartridges is equipped with Piezo actuator to achieve higher servo closed loop bandwidth. The typical bandwidth is in the range of 2–3 kHz. This allows for non-repeatable run-out reduction down to 0.35–0.60 nm (0.014–0.024 Inch) , 1. The higher servo bandwidth also improves seek time, which leads to test time improvement for several tests.
Automated Protective Cover and Disk Shroud: Improves the repeatability and the accuracy of HGA testing results. Protects media and operator while changing HGA cartridges without stopping spindle. Covers media to protect it while spinstand is not in use. Automated disk shroud movement eliminates the need to manually release, move, and lock the disk stabilizer shroud
Universal Preamplifier 12 (UP12) is designed for new generation of TDMR and HAMR Headamplifiers. With new Guzik RWA4000 TDMR, UP12 allows to process signals from three Read Channels.
Universal Preamplifier 11 (UP11) is designed for high-speed operation with Guzik RWA 4000 series. UP11 allows the RWA 4000 series to achieve the maximum write data rate 8 Gbit/sec and beyond.
Two independent write channels with more than 8 Gbit/sec data speed. DC to 4 GHz read-channel bandwidth. Works with Guzik MR7 amplifier and commercial amplifiers
Write channel with 2 Gbit/s data speed 70KHz to 1.8GHz at -3dB read channel bandwidth Works with RWA 2000 series
Spinstand Media Related
Automated Disk Shroud Movement and Replacement of Vacuum Chuck Cap: Most effective for media testing, when changing media frequently is a requirement. Reduces the time required to remove and replace the chuck cap and move the shroud back and forth when media is changed. Simultaneously moves both the shroud and the chuck cap into and out
Read-Write Analyzers Related
The Guzik PCI Express Host Interface Bridge Card was designed to expand the x8 PCI Express Gen 2 (PCIe) slot in a host PC to an AXIe chassis or a Guzik GSA 6000 Series digitizer and Read Write Analyzer 4000 Series.
Low-pass octave filters cover the frequency range from 20 to 2000 MHz Five-pole Butterworth filters Custom-designed filters are available
Differentiators with integrated programmable filters cover the frequency range from 20 to 2000 MHz Five-pole Butterworth or Bessel filters to cut-off high frequency noise
Data rate exceeding 4 Gb/sec Analog bandwidth exceeding 2 GHz Small PCMCIA form factor Installation through analog box front panel
Replaces three PCB (printed circuit boards) in single PCI slot: RWA Host Adapter TMS Host Adapter Controller for Z-height Adjustment Tool Supports RWA1601, RWA1632, RWA2550++, RWA2550++(A), RWA2585 PRML
The Guzik miniature AE sensor with isolated integral 30dB preamplifier has a wide-band and excellent frequency response over the range up-to 1 MHz.