Precision Positioning with Environmental Compensation
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Catalog excerpts

Precision Positioning with Environmental Compensation - 1

High accuracy and high resolution. The LDS-2000 Laser Doppler Scale (LDS) with Automatic Temperature, Pressure and Material Thermal Expansion Compensation 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, Supermi-crometers, 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. The LDS is compatible with all mainstream controller feedback systems, and the laser head is insensitive to dirt, oil, and hostile environments. 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 four components; L-109 Laser Head-HeNe Laser head, ruggedized for direct installation in machine tool and other positioning applications. Contains HeNe Tube, Optics and a Photodetector Receiver. Outputs to IPS 1 Processor Module. No need for periodic calibration. Non-Contact eliminates parts wear. Freedom locate point of measurement close to measured object reduces Abbe Error. Orthogonality of positioning system determined by mirrors not X-Y stages when using flat mirror target. IPS1 Processor Module - Contains the electronics for signal processing and generation of the AQuadB Square Waves and Up/Down Pulses. Receives signal directly from the Laser Head. The processor mounts in the P-108 AC Powerfeed and Enclosure. The standard output is Up/Down Pulses. For AQuadB instead of Up/Down Pulses, please specify at time of order. The board also provides an error signal that is a TTL level output, which is LOW to indicate that the laser signal is low and HIGH to indicate that the laser signal level is sufficient for normal operation. An Optional Error Signal/ Warning Signal Latching Relay is also available. See IEWR Relay for Warning and Error Electronics flexibility with variable increment and automatic temperature compensation. No mounting stress on scale. No thermal expansion on scale. No need for machined fiat surface for mounting scale saving installation costs. Higher loop gain possible for closed loop servo control. R-102A Retroreflector Optional hermetic seals for hostile environments. Rejection of vibration in two or three planes reduces structural resonance effects. the laser head, the retroreflector, the processor module, > - 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. that produces either AQuadB Square Waves or Up/Down Pulses and the IACTM Automatic Temperature/ Material Compensation System. The LDS-2000 can directly replace glass scales and other positioning devices in your existing systems. Optional cards include RS232, and Sinusoidal outputs. IATCM Automatic Temperature/ Pressure Compensation (Master) -Consists of an Air Pressure Sensor, an Air Temperature Sensor, a Material Temperature Sensor, and a CPU controlled board. The values of Pressure, Temperature and Material Temperature are used to calculate the compensation factor. The Material Thermal Expansion Coefficient is loaded into the CPU through the RS-232 port on your PC. Software is provided to change the >

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Precision Positioning with Environmental Compensation - 2

IPPS Sinusoidal Output - Board that provides a sine wave output as required by some models of Fanuc, Siemens, and other controllers. Connects to IPS1 Processor Module, and also requires the IPC3 Board. The quadrature sine/ cosine wave signals are approximately 1V peak to peak at 120 Ohm termination. The period of the sine wave is 40.513167 micrometers and the maximum frequency is 100 kHz. ER-400 Extended Range - Extendsthe range of the laser system to 400 inches. ER-2000 Extended Range - Extendsthe range of the laser system to 2,000 inches. L-109N Narrow Beam Laser Head - Similar to the...

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Precision Positioning with Environmental Compensation - 4

HIS Home Position Signal Output > : TTL Square Wave L-109 Laser Head: Power: Termination : 120 Ohms 0.5 mw HeNe Rise Time : 15 nsec C1ass :II 1121 CFR 1040.10, 1040.11 Pulse Width : 5 msec Alignment Tolerance : lateral0.05 inches Repeatability : < lѵm Wavelength : 632.8 nut Weight : 2 lb. Operating Environment : Warm-up Time : 20 minutes Temperature 60to 90 F Altitude 0 to 10,000 ft Resolution/Slew Rate : Humidity 0 to 95% non-condensing IPS1 Processor Card :25 microinches (0.6 еm), slew 160 ips Dimensions System Components : > 1PD2 Divide by 8 Board : IPS1 Processor Card :7 x 4.5 x 0.75...

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