Name: ISO 4965-2:2012 — Metallic materials — Dynamic force calibration for uniaxial fatigue testing — Part 2: Dynamic calibration device (DCD) instrumentation
SKU: ISO 4965-2:2012
Price: 25 EUR
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Overview

ISO 4965-2:2012 specifies the calibration procedure and instrumentation requirements for a Dynamic Calibration Device (DCD) used to measure forces in uniaxial fatigue testing. This part of ISO 4965 defines how to calibrate the DCD’s strain‑gauge bridge output conditioning and display electronics so that dynamic force measurements are traceable, accurate and valid over a defined frequency range. It complements ISO 4965-1, which describes the testing‑system calibration method using a calibrated DCD.

Key topics and technical requirements

Scope and purpose: Calibration of DCD instrumentation to ensure accurate force measurement during dynamic (cyclic) uniaxial fatigue tests.
Environmental requirement: Calibration performed at 18 °C to 28 °C (actual temperature reported in the report).
DCD instrumentation: Reads/display DCD output as mV or mV/V; resolution must be ≤ 0.0001 mV/V.
Dynamic voltage reference standard: Generates DC and sinusoidal waveforms (with configurable amplitude, frequency, DC offset and added harmonic distortion), traceable to national standards.
- Expanded uncertainty of generated peak/valley voltages: ≤ 0.2% of the voltage range.
- Example DC capability: for 10 V excitation, generate −20 mV to +20 mV with ≈20 µV uncertainty.
- Output‑impedance mismatch between reference and DCD to be

ISO 4965-2:2012 PDF

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Abstract

Overview

Key topics and technical requirements

Технические детали

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