Diagnostics and Repair

Engineers and technicians commonly use data acquisition hardware and software to develop diagnostic systems for identifying the root cause of a failure. Applications range from portable, ad-hoc measurements of machinery to automated image inspection systems. The following case studies illustrate the flexibility and productivity provided by NI data acquisition (DAQ) hardware and LabVIEW software for diagnostics and repair.

Building a Pipeline Corrosion Inspection System

Using DAQ hardware and LabVIEW software to create a system that inspects inaccessible pipe portions at the support locations by exciting circumferential guided waves at the accessible region of the pipe.

“We used NI hardware and LabVIEW software to successfully implement a pipe crawler with a suitable holder for a wedge and data acquisition software to image corrosion type defects” – Krishnan Balasubramaniam, Indian Institute of Technology Madras

Automating Molecular Diagnosis and Biological Sample Preparation

Using DAQ hardware and LabVIEW software to create a microfluidics-based biosample system to process bodily fluids as well as isolate and elute pure DNA or RNA genes for detection using polymerase chain reaction (PCR).

“At the heart of the system is a customized LabVIEW program that automates the entire sample preparation system and controls the actuation of syringe pumps and the timing sequence of solenoid valves.” – Jeremy Loh, Institute of Bioengineering and Nanotechnology

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Developing the Canary System for Early Detection and Monitoring of Tooth Decay

Replacing two bulky and expensive hardware lock-in amplifiers with a single cost-effective OEM data acquisition module from National Instruments and LabVIEW software installed on a netbook to miniaturize the system further.

“LabVIEW software with an NI OEM data acquisition module fully controls the PTR-LUM signal acquisition in the Canary System.” – Dr. Koneswaran Sivagurunathan, Quantum Dental Technologies

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