Used Taylor Hobson (Ametek) 2-Axis Photo Electric 142-201 Ultra Autocollimator. 0.2 sec (over central 800 sec) accuracy; 1800 sec range of measurement; 0.001 sec direct reading to. This two axis autocollimator is designed with a nominal range of 1800 seconds of arc, reading to 0.001sec., incorporating a solid state infrared LED light source and digital camera detector, and for the accurate measurement of small angular displacements. This autocollimator is used to measure: Angle (indexing head accuracy); Straightness (machine tool slides in two axes); Squareness (column to slideways); Parallelism (slideways). Includes SM2003 REV 2.9 Software; 50mm mounted flat reflector; adjustable tripod stand and plate for top of tripod.
Used Equipment Facts About This Machine
Manufacturer Information:
Brand: Taylor Hobson (Ametek)
Model: 142-201
Type: 2-Axis Photoelectric Ultra Autocollimator
Technology: Solid-state infrared LED light source with digital camera detector
Software Included: SM2003 REV 2.9
Condition: Used
Description:
This Used Taylor Hobson (Ametek) Model 142-201 Ultra Autocollimator is a precision 2-axis photoelectric autocollimator designed for ultra-fine angular measurement with high accuracy. The unit has a range of 1800 seconds of arc, and provides direct readings down to 0.001 sec, offering exceptional resolution for demanding metrology applications. It uses an infrared LED light source and digital camera detection, ideal for both manual and automated alignment verification tasks.
The package includes SM2003 REV 2.9 software, a 50mm mounted flat reflector, and an adjustable tripod stand with top plate—making this a complete, ready-to-use setup.
Specifications:
Model: 142-201 Ultra Autocollimator
Axes: 2-axis measurement
Accuracy: 0.2 seconds of arc (over central 800 seconds)
Range: ±1800 seconds of arc
Resolution: 0.001 seconds of arc (direct read)
Light Source: Solid-state infrared LED
Detector: Digital camera
Software: SM2003 REV 2.9 (included)
Accessories:
50mm mounted flat reflector
Adjustable tripod stand
Tripod top mounting plate
Condition: Used – excellent working condition
Features:
Dual-axis measurement for angular displacement analysis
High-resolution digital reading with direct 0.001 sec readout
Designed for ultra-precise angular accuracy and alignment inspection
LED-based light source provides long-lasting, stable illumination
Digital imaging ensures accuracy and data capture consistency
Software-controlled analysis with live graphical feedback
Complete setup with stand, plate, and target reflector
Ideal for calibration labs, precision machining setups, and alignment tasks
Applications:
Indexing head angular accuracy measurement
Straightness of machine tool slides in X and Y axes
Squareness checking between slideways and columns
Parallelism verification in precision slide systems
Calibration of rotary and linear axes
High-accuracy alignment of optical or mechanical assemblies
Flatness and tilt measurements in engineering components
Metrology labs, QA departments, and R&D environments
What might this be used for?
Verifying the squareness of CNC machine tool columns to their baseways
Measuring the angular precision of rotary indexers or dividing heads
Ensuring parallelism of guide rails in precision slide systems
Testing the straightness of machine bed slideways during rebuild or commissioning
Providing high-precision reference measurements in aerospace and automotive R&D
Supporting calibration routines in metrology labs or OEM testing facilities
Assisting in mechanical component inspection for ultra-low angular deviation
Setting up optical benches or laser alignment systems
Supporting quality assurance processes in ultra-precise manufacturing
Performing ISO or NIST-traceable alignment verification
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