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Choosing Fiber-Optic Light Sources for Spectroscopy: LED vs. Laser

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Introduction Fiber-optic light sources are crucial for applications like absorbance spectroscopy, fluorescence, optical sensing, and biomedical diagnostics. Choosing between an LED-based source and a laser-based source impacts everything from spectral resolution to power stability. This article compares the two technologies and provides guidance based on application needs. LED Light Sources: Pros & Cons LEDs emit incoherent, broadband light ideal […]

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Reading Phase-Noise Specs Correctly on PXI Vector Signal Analyzers

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Introduction Phase noise is one of the most critical specifications in RF and wireless testing — especially in systems where signal purity, spectral integrity, and jitter are crucial. PXI-based vector signal analyzers (VSAs) offer compact, high-performance phase-noise analysis, but understanding their datasheets can be tricky. This guide explains how to read phase-noise specs accurately, interpret offset frequency

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Automated PCB Test on PXI: Rack Design Step by Step

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Automated PCB Test on PXI: Rack Design Step by Step Published by: Sohoprolab Editorial Team | Date: July 8, 2025 Introduction Building a high-performance, scalable automated test rack for printed circuit boards (PCBs) requires careful planning, especially when using the PXI (PCI eXtensions for Instrumentation) platform. PXI allows tight synchronization, modularity, and rapid integration with existing test software. This guide

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Li-Ion Battery Quality Control with an SMU Station

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Li-Ion Battery Quality Control with an SMU Station Published by: Sohoprolab Editorial Team | Date: July 8, 2025 Introduction With the rise of electric vehicles, medical wearables, and portable electronics, Li-Ion battery testing has become critical in both R&D and mass production. Among the most accurate and flexible test tools available is the Source Measure Unit (SMU) — capable of both sourcing

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reading phase noise pxi vsa

LabVIEW + PXI for Testing Automotive Radar Sensors (ADAS)

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LabVIEW + PXI for Testing Automotive Radar Sensors (ADAS) Published by: Sohoprolab Editorial Team | Date: July 8, 2025 Introduction Modern vehicles depend on radar sensors for key ADAS (Advanced Driver Assistance Systems) functions like collision avoidance, blind-spot detection, and adaptive cruise control. Testing these automotive radar modules requires a combination of high-frequency signal generation, real-time simulation, and precise measurement. LabVIEW and PXI-based

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Setting Up a Thermal Chamber and DAQ for Cyclic Electronics Testing

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Introduction Environmental stress testing is essential for qualifying electronic components in applications ranging from automotive to aerospace. By using a thermal chamber and DAQ system, engineers can simulate extreme temperature cycling and monitor device responses in real time. This article covers how to integrate programmable chambers with modular data acquisition (DAQ) systems — such as PXI

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Implementing HIL Testing for Power Electronics with CompactRIO

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Introduction Power electronics such as inverters, DC/DC converters, and motor drives play a critical role in EVs, renewable energy systems, and industrial automation. Testing these devices under realistic, dynamic conditions requires more than benchtop equipment — it demands a real-time Hardware-in-the-Loop (HIL) simulation environment. CompactRIO (cRIO), with its reconfigurable I/O and embedded real-time control, is uniquely suited for

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