attoPUBLICATIONS FPS Sensor Systems | Page 12

FPS Sensors – Interfaces real-time connectivity FPS sensors are designed for ease of use and simple connectivity. Measured displacement information can be transferred to a personal computer using USB or Ethernet (optional), where the measurement software Daisy allows synchronous data visualization, analysis, and storage. In addition to these standard interfaces, the FPS includes the high-speed real-time digital interfaces AquadB and HSSL. 45 mm 214 mm 2 1 3 6 5 4 214 mm 1 Main Power 2 Ethernet (optional) 3 Serial 4 USB 2.0 5 GPIO (General Purpose Input/Output) 6 HSSL / AquadB Interface Specifications target velocity [m/s] 0.0001 0.001 0.01 0.1 1 resolution USB (abs.) 64 bit, 100 kHz [nm] 0.001 0.001 0.001 0.001 0.001 resolution HSSL (abs.) 8-48 bit, up to 25 MHz [nm] 0.001 0.001 0.001 0.001 0.001 resolution AquadB (inc.) at 25 MHz [nm] 0.004 0.04 0.4 4 40 BiSS-C 0 1 0 1 0 0 1 0 1 HSSL 0 (digital; bandwith up to 25 MHz and 8-48 bit resolution): attocube’s proprietary serial word protocol Master CLK DAT BiSS-C CLK Master DAT CLK 1 1 0 provides absolute position information. The HSSL interface consists of two signals (single ended or differential): clock signal and the data signal that includes the position information. 1 the 0 1 1 0 1 AquadB 0 (digital; bandwith up to 25 MHz; resolution freely assignable): The AquadB interface provides incremental CLK A DAT A CLK B B A B A displacement information on target displacement. Position resolution and (maximum) clock rate can be user defined using the software interface.