LDS-1000
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Model LDS-1000 Laser Doppler scale LASER SCALE FOR POSITIONING APPLICATIONS Precision Linear Positioning FEATURES High accuracy and high resolution. No need for periodic calibration. No wearing parts for non-contact devices. Freedom to locate point of measurement close to measured object reduces Abbe Error. Orthogonality of positioning system determined by mirrors not X-Y stages when using a flat mirror target. Electronics flexibility with variable increment. No mounting stress on scale. No thermal expansion on scale. No need for machined flat surface for mounting scale saving installation costs. Higher loop gain possible for closed loop servo control. Optional hermetic seals for hostile environments. Rejection of vibration in two or three planes reduces structural resonance effects. System Components The LDS-1000 Laser Doppler Scale (LDS) provides high speed, high accuracy and long range positioning for single or multiple axis applications, such as linear motors, large gantry machines, CNC machine tools, CMM's, precision stages, Supermicrometers, and other linear measurement devices. The LDS is compact, easy to install, easy to align, has less Abbe off-set, no cross coupling, and is cost effective. L-109 Laser Head: HeNe laser head, ruggedized for direct installation in a machine tool and other positioning application. Contains a HeNe tube, optics and a photodetector receiver and outputs to P-311 Processor Module. The LDS Series is compatible with all mainstream controller feedback systems. Versions are also available for operation with an IBM PC compatible computer, and the Laser head is insensitive to dirt, oil, and hostile environments. L-201 Laser Head: Wide beam and long range laser head with 12 mm output laser beam diameter. The LDS Laser Head reflects a modulated laser beam off a movable target. The beam is detected and processed for displacement information used by your system controller to determine position. Installation is made easy with only three components; the laser head, the retroreflector, and the processor module, that produces either AQuadB Square Waves or Up/Down Pulses. The LDS-1000 directly replaces glass scales and other positioning devices in your existing systems, and optional cards include RS-232, and Sinusoidal outputs. L-109HP Laser Head: High Performance laser head with higher stability and accuracy. A solid mounting base and a linear DC power supply are used. P-311 Processor Module: This is a tower type box, contains the electronics for signal processing and generation of the A Quad B square waves or Up/Down Pulses. Many options can also be added to the Processor module. A TTL level error is standard. An optional error signal/warning signal with latching relay is also available. P-108HP Processor Module: This Processor Module with a linear dc power supply P-107HP is for the high performance laser scale LDS-1000HP. R-102A Retroreflector: 1/2" diameter retroreflector without post or base. Used to return the laser beam back to the Laser Head receiving aperture on a path parallel to the input beam, regardless of the angle of incidence. Movement of the retroreflector determines displacement measurement. LD-21R Cable Set: Connects the Laser Head to the P311 Processor Module.

ICB Counter Board: The Counter Board when installed, resides on the P-311 Processor Module, and converts the signal information to BCD output for use with the D-101 10 Digit LED Display. This board must be present when a D-101 Display is used. The board also provides the RS-232 Full Duplex function for the system. Parameters including displacement are available from the RS232 port. D-101 10 Digit LED Display: Provides information on positioning without the need for a computer or a controller. Connects to the P-311 Processor and allows readings from the system to be viewed easily from...

SYSTEMS CONFIGURATION There are three basic LDS-1000 systems available, the LDS-1000, LDS-1000WB and LDS-1000HP. Available Options are the followings. system, the LDS-1000WB is for long range with 12 mm laser output beam diameter, and the LDS- 1000HP is for higher stability and accuracy applications. The basic system configuration for LDS-1000 are the followings. L-109 Laser Head R-102A 0.5” diameter retroreflector P-311 Processor Module LD-21R Cable set IHS Home Position Transducer IPC3 Pulse Convertor IPC4 Automatic ATC Converter Board & C4 Board(w/probes) IPPD2 Wavelength Divided by 8...

IHS Home Position Signal Output: TTL Square Wave Termination: 120 Ohms Rise Time: 15 nsec Pulse Width: 5 msec Repeatability: < lμm L-109 Laser Head: Power: 0.5 mw HeNe Class: 11 21 CFR 1040.10, 1040.11 Alignment Tolerance: lateral ±0.05 inches Wavelength: 632.8 nm Weight: 2 lb. Warm-up Time: 20 minutes Resolution/Slew Rate: IPSI Processor Card: 25 microinches (0.6 µm), slew 200 ips IPD2 Divide by 8 Board: 3.1 microinches (0.078 µm), slew 24 ips IPD1 Divide by 64 Board: 0.38 microinches (0.009 µm), slew 3.2 ips Output: Up/Down Pulses AQuadB Square Waves (Differential Output available)...