Target Body/Substrate: Flatness ≤ 1 μm/m

Component Specifications

Definition

The Target Body/Substrate is a critical reference component in measurement and calibration equipment, providing a stable, known surface or structure against which sensors, probes, or optical systems are aligned or calibrated. It ensures measurement accuracy by serving as a physical standard for zero-point reference, dimensional verification, or positional alignment in coordinate measuring machines (CMMs), vision systems, laser scanners, and other precision instruments.

Working Principle

The component operates as a passive reference standard. Its precisely known geometry, dimensions, and surface characteristics (flatness, parallelism, reflectivity) provide a fixed datum. Measurement systems compare sensor readings against this reference to detect deviations, calibrate offsets, or establish coordinate systems. In optical systems, it may include fiducial marks or patterns; in tactile systems, it provides contact surfaces with certified dimensions.

Materials

Typically made from materials with high dimensional stability, low thermal expansion, and wear resistance: granite (for flatness), ceramic (for hardness and stability), stainless steel (for durability), aluminum (for lightweight applications), or glass (for optical transparency). Surface coatings may include reflective layers, anti-reflective coatings, or hardened treatments.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flatness	≤ 1 μm/m
Hardness	≥ 60 HRC for metallic types
Size Range	50 mm to 2000 mm (typical)
Surface Roughness	Ra ≤ 0.1 μm
Dimensional Tolerance	± 0.005 mm
Thermal Expansion Coefficient	≤ 1.5 × 10^-6 /K

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 10360, ISO 25178, DIN 876, DIN EN ISO 14253

Parent Products

This component is used in the following industrial products

Reference Target

A precisely defined physical or optical feature used as a standard point for alignment, measurement, or calibration within a system.

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Engineering Analysis

Risks & Mitigation

Surface contamination affecting accuracy
Thermal deformation due to environmental changes
Mechanical damage from improper handling
Wear over time leading to dimensional drift

FMEA Triads

Trigger: Accumulation of dust, oils, or debris on the surface
Failure: Measurement errors due to altered surface characteristics
Mitigation: Implement regular cleaning protocols using approved solvents and lint-free wipes; store in controlled environments with protective covers.

Trigger: Thermal expansion from ambient temperature fluctuations
Failure: Dimensional inaccuracies exceeding tolerance limits
Mitigation: Use materials with low thermal expansion coefficients; operate in temperature-controlled environments (±1°C); allow thermal stabilization before use.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Complies with ISO 17025 for measurement uncertainty; geometric tolerances per ISO 1101

Test Method

Calibration via laser interferometry, coordinate measuring machines, or optical flat testing; surface analysis using profilometers or white-light interferometers.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Target Body/Substrate

Manufacturer profiles associated with Target Body/Substrate.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between a Target Body and a Substrate in this context?

In industrial metrology, 'Target Body' typically refers to a 3D reference object with known geometry (e.g., a sphere, cube), while 'Substrate' often denotes a flat plate or surface with fiducial marks. Both serve as calibration references, but the Target Body is used for volumetric calibration, and the Substrate for 2D planar alignment.

How often should a Target Body/Substrate be recalibrated?

Recalibration intervals depend on usage, material, and environmental conditions. For high-precision applications, annual recalibration against traceable standards (e.g., NIST) is recommended. Daily or weekly verification checks are advised for critical processes.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Target Body/Substrate