Testing Instruments
5060 articles · Page 208 of 211
Bench Power Supply Ripple Measurement: 5-Step AC Noise Analy
Detail how to measure and interpret ripple/noise on bench power supplies using oscilloscopes and spectrum analyzers—include bandwidth settings, grounding tips,
Thermal Camera MSX® vs. Ultra Contrast Imaging: Which Improv
Side-by-side comparison on cracked solder joints and delaminated ICs using both modes; include technician survey data on diagnostic confidence.
Probe Station Alignment: Step-by-Step Calibration for Wafer-
Explain the precise mechanical and electrical alignment steps needed for RF probe stations, including thermal drift compensation and contact resistance verifica
Calibration Interval Optimization for LCR Meters in Producti
Apply statistical process control (SPC) on daily reference standard checks to extend calibration cycles without risking ISO 9001 nonconformance.
Signal Generator Phase Noise Impact on Radar Pulse Compressi
Correlate phase noise floor (dBc/Hz @ 10 kHz offset) with compressed pulse sidelobe levels; reference DO-160 Section 21 test requirements.
Probe Station Cryogenic Testing: Adapting Chuck & Probe Mech
Address thermal contraction mismatches, lubricant freezing, and vacuum compatibility—include vendor-approved low-temp probe models and thermal anchoring tips.
Signal Generator Output Impedance Mismatch Effects on High-S
Quantify SNR degradation due to 50 Ω mismatch on 12-bit+ converters; show scope captures and termination solutions (active/passive).
LCR Meter Equivalent Series Resistance (ESR) Accuracy: Frequ
Map ESR measurement variance across 1 kHz–100 kHz for tantalum, MLCC, and polymer caps; cite IPC-A-610 acceptance criteria.
LCR Meter Dielectric Absorption Test: Setup, Timing, and Pas
Define charging/discharging sequence (per IEC 60384-1), required soak times, and acceptable DA ratio limits for Class X/Y capacitors.
Thermal Camera Reflected Apparent Temperature Compensation:
List 5 field checks (ambient temp sensor placement, reflective surface ID, background source mapping) to validate R.A.T. correction before reporting.
Probe Station Vacuum Chuck Failure Modes & Repair Protocol
Expert guide to diagnosing vacuum chuck failures: flow meter tests, O-ring inspection, pump maintenance, and ISO/ASTM-compliant seal replacement.
Thermal Camera Spot Size Calculator: Avoiding Misleading Hot
Embed interactive calculation tool logic (IFOV × distance) and demonstrate how misapplied spot size overestimates MOSFET junction temps by >12°C.
Signal Generator Sweep Rate Limits: Why Your VCO Characteriz
Analyze sweep linearity errors caused by DAC settling time and PLL lock latency; recommend firmware updates and external trigger synchronization.
Calibrating Signal Generators Without a Spectrum Analyzer: D
Outline traceable calibration workflow using thermocouple power sensor, attenuators, and correction factor tables per ANSI/NCSL Z540.
Probe Station Leakage Current Testing: Guarding Techniques f
Detail guarding strategies (cable shielding, guard rings, triax connections) and environmental controls (humidity, contamination) for ultra-low current validati
LCR Meter 4-Terminal Kelvin vs. 2-Terminal Mode: When Each M
Use oscilloscope traces to show impedance error divergence above 10 Ω; specify wire gauge, lead length, and DUT geometry thresholds.
Thermal Camera Integration with LabVIEW: Real-Time Temperatu
Share tested Python/LabVIEW code snippets for streaming radiometric data, triggering alarms at threshold temps, and overlaying thermal on optical images.
Probe Station Chuck Flatness Testing: Tools, Tolerances, and
Describe using dial indicators and optical flats to verify <2 µm flatness; detail lapping procedure and when to replace graphite chucks.
Calibrating LCR Meters to ISO/IEC 17025: A Step-by-Step Lab
Walk through documented calibration procedures—including uncertainty budgeting, traceability chains, and report generation—for accredited lab compliance.
Best LCR Meters for Electrolytic Capacitor ESR Testing at 10
Compare 6 benchtop models on measurement repeatability, bias voltage support, and auto-balancing speed for high-volume capacitor screening.
RF Signal Generator Harmonic Distortion Measurement: Setup G
Provide exact test setup (spectrum analyzer settings, attenuator values, cable specs) and pass/fail thresholds per IEEE Std 1451.4.
Thermal Camera Emissivity Settings: Common Errors That Skew
Show side-by-side thermal images of copper traces and ceramic caps at wrong emissivity values; explain material-specific correction techniques.
Signal Generator Ground Loop Fixes for Low-Noise Analog Circ
Identify ground loop symptoms in waveform fidelity (jitter, offset drift), then prescribe isolation transformers, star grounding, and coaxial shielding best pra
LCR Meter Dielectric Absorption Test Setup for High-Voltage
Detail constant-voltage charging, timed discharge intervals, and leakage current monitoring using bias-T integrated LCR meters per MIL-PRF-123.