Spindle Quality Analysis

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Spindle Error Analyzer Components

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An SEA system has many components. Assembling a complete system requires choosing from options in each of these catagories:

Each of these categories and the available options are shown below.

We will help you choose the right options for your needs.
This information is only presented for your information.

Number of Channels

Three or five channels of displacement measurement.

Five channel systems can do comprehensive testing in all axes simultaneously including Tilt Measurements.

Three channel systems must be physically reconfigured to make Tilt Measurements and then can only make the measurement in one axis at a time.

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Driver Electronics

Elite Series electronics feature a modular design and the high-resolution performance required to measure very precise spindles. In addition to the capacitive displacement sensor electronics, modules are also available for temperature sensors, encoder/index input processing, and a meter/display module.

Displacement Sensor Drivers

Two options are available for the displacement sensors. One driver is required for each channel of displacement measurement. The drivers will be calibrated with the selected probes for a particular measurement range (sensitivity).

CPL190 Single Sensitivity Driver

One calibration for general use.

capacitive sensor

CPL290 Dual-Sensitivity Driver

Two selectable calibrations allow this system to measure spindles of varying performance levels. A high-sensitivty (short range, high resolution) is selectable for extremely high performing spindles allowing sub-nanometer measurements.

capacitive sensor

 

Optional Temperature Sensor and Index/Encoder Driver

Thermal spindle tests (ETVE, Thermal Stability) are required by international standards.

TMP190 Temperature and Index/Encoder Module

Temperature is the primary factor in machining errors. Measuring the machine's ability to reliably place the tool in the correct position relative to the workpiece is very informative. This module can use up to seven "button" style magnetic-mount temperature sensors to monitor temperatures at different points on the machine.

Index and/or Encoder inputs from the spindle is the ideal way to control the spindle measurement data acquisition system. This module conditions those signals and connects them to the SEA system.

capacitive sensor

 

Optional Meter Module

MM190 Meter Module

A meter module that displays in metric or inch units. Includes peak capture functions and channel summing.

mm190 meter module

 

Electronics Enclosure

The number of modules selected will determine which Elite Series enclosure will be used. The Data Acquisition device is installed directly on the six- and eight-slot enclosures; it is a separate desktop device with the three-slot enclosure.

Three-Slot Enclosure

Basic three-channel systems.

3 CPL190 or CPL290 (shown)

three slot enclosure

Six-Slot Enclosure

Enclosure with tip-up handle. For five channel systems or three-channel systems with Temperature or Meter module.

3 CPL190 or CPL290, 1 TMP190

3 CPL190 or CPL290, 1 MM190

5 CPL190 or CPL290

5 CPL190 or CPL290, 1 TMP190 (shown)

6 slot cabinet

Eight-Slot Enclosure

Enclosure with tip-up handle. For five channel systems with Temperature and/or Meter modules.

5 CPL190 or CPL290, 1 TMP190

5 CPL190 or CPL290, 1 MM190

5 CPL190 or CPL290, 1 TMP190, 1 MM190 (shown)

8 slot cabinet

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Displacement Sensor Probes

Different sizes and styles of probes are available depending on application. Standard, micro, and nano are available.

Standard System

Probe Options

Calibrations

Mount Hardware
(see below)

Master Target
(see below)

C8-2.0 Standard: 250 µm
Fine: 50 µm
Ultrafine: 10 µm
Standard 3- or 5-Probe Nest Dual or Single Ball, 1"

Micro System

Probe Options

Calibrations

Mount Hardware
(see below)

Master Targets
(see below)

C5-2.0 Standard: 250 µm
Fine: 50 µm
Ultrafine: 10 µm
3-Probe Micro Nest

Single Ball 1"
Single Ball 0.5"
8 mm Gage Pin

Nano System

Probe Options

Calibrations

Mount Hardware
(see below)

Master Targets
(see below)

C3S-0.8
C3R-0.8
Standard: 100 µm
Fine: 25 µm
3-Probe Nano Nest 1/8" Gage Pin
2  mm Gage Pin
8  mm Gage Pin

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Probe Mount Hardware

Accuracy of the measurements are dependent on stiffness and reliability of the mounting hardware. Precision probe holders are designed to maintain precise perpendicularity required for accurate measurement of high-resolution error motion. Also available are more generic adjustable probe holders for single channel measurements and micro- and nano-sized probe nests.

Probe nests are manufactured from 416 SST hardened to Rc 40

Master Ball Targets and Probe Nests Dimensions and Care

Standard System

3 Probe Nest

5 Probe Nest

Turning Center Adaptor

Adjustable

spindle error motion 3 probe nest spindle error motion 5 probe nest spindle error motion lathe adaptor spindle error motion adjustable probe mounts
X, Y, and Z axes measurements with a three channel system.
2X, 2Y, and Z measurements for tilt and error motion with 5‑channel systems. Fits in turning center tool holder and holds a standard three probe nest.

For mounting probes where standard probe nests can not be used.

XYZ Positioning Stage

xyz complete

xyz stage
For use with 3- and 5-Probe Nest when fine positioning of the target/spindle is not available. Shown with Standard 5-Probe Nest

Micro System

3 Probe microNest

micromachining probe nest
Smaller size 3‑probe nest for 5 mm probes.

Nano System

3 Probe nanoNest

spindle error motion lathe adaptor
Tiny 3-probe nest for 3 mm probes.

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Master Ball Target Hardware

Master targets are manufactured to exacting standards. Our master ball targets boast a roundness of better than 50 nm (2 µinch).
If not using an encoder/index output from the spindle to determine angular location, targets require some eccentricity for the software to establish a "once-around" signal. Some master balls have fixed 50 µm eccentricity. Master balls are also available with adjustable eccentricity for very high precision spindles in which 50 µm eccentricity is too much. A dual master ball is required for five channel systems.
A precision 1 inch gage pin with two finished surfaces, a 1/8" gage pin and a 2 mm gage pin are also available.

Master Ball Targets and Probe Nests Dimensions and Care

Standard System

Single 1"
50 µm Eccentricity

Dual 1"
50 µm Eccentricity

Single 0.5"
Adjustable Eccentricity

Precision Pin 20 mm
No Eccentricity

spindle runout single master ball spindle runout dual ball target spindle runout small test ball spindle runout test gage pin

One precision ball for three channel systems.

Not for Micro or Nano systems

Two precision balls for five channel systems enabling measurements of tilt as well as other error motions.

Not for Micro or Nano systems

One precision 0.5" ball for three channel systems on smaller and micromachining machine tools.

Not for Nano systems

Two finished target areas.

Not for Micro or Nano systems

Single 1"
Adjustable Eccentricity

Dual 1"
Adjustable Eccentricity

spindle runout single master ball spindle runout dual ball target

One precision ball for three channel systems.

Not for Micro or Nano systems

Two precision balls for five channel systems enabling measurements of tilt as well as other error motions.

Not for Micro or Nano systems

 

Micro and Nano Systems

Single 0.5"
Adjustable Eccentricity

Precision Pin (8 mm)

Precision Pin (3 mm)

spindle runout small test ball    

One precision 0.5" ball for three channel systems on smaller and micromachining machine tools.

Not for Nano systems

Not for Standard or Nano systems

Not for Standard systems

Master Ball Targets and Probe Nests Dimensions and Care

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