North Atlantic Industries 73SD4: Synchro/resolver-to-digital converter comes on a PC-104 card

The DSP-based, six-channel 73SD4 synchro/resolver-to-digital converter on a PC-104 card features six independent, transformer-isolated, programmable synchro/resolver-tracking-converter-measurement channels. Each channel has 16-bit resolution, a ±1 arc-minute accuracy, a 150-rps tracking rate, an accurate digital-velocity output, A and B incremental encoder outputs, and a wraparound self-test. The channels are programmable for speed ratios of 1-to-1 and 255-to-1. Requiring a 5V-dc power supply, the unit operates over a 47-Hz to 10-kHz frequency range, and has a 2 to 28V-rms autoranging input range. Additional features include 16 programmable digital I/O channels, a latch for simultaneously reading all channels, and an optional programmable excitation-reference supply. The 73SD4 costs $2500 (100).

North Atlantic Industries, www.naii.com