LLNL researchers have developed a TDLAS-based, standalone, real-time gas analyzer in a small form-factor for continuous or single-point monitoring. The system can analyze multiple gases with ultra-high sensitivity (ppm detection levels) in harsh conditions when utilizing wavelength-modulation spectroscopy (WMS).
Keywords
- Show all (61)
- Sensors (15)
- Electric Grid (8)
- Carbon Utilization (6)
- Ground Penetrating Radar (4)
- Materials for Energy Products (4)
- Defense Technologies (3)
- 3D Printing (2)
- Additive Manufacturing (2)
- Direct Air Capture (2)
- National Security Forensics (2)
- Power Electronics (2)
- Synthesis and Processing (2)
- Geologic Storage (1)
- Imaging Systems (1)
- Inertial Fusion Energy (IFE) (1)
- Membranes (1)
- Semiconductors (1)
- Simulation (1)
- (-) Spectrometers (2)
- (-) Photoconductive Semiconductor Switches (PCSS) (1)
A thyristor will stay conducting until the current through the device is zero (“current zero”) or perhaps slightly negative. LLNL’s approach is to use the opticondistor (“OTV”) to force this current zero in order to force the device into an “off” state. By combining a light-activated thyristor with an OTV, a noise-immune, high efficiency, high-power switching device can be constructed. The…
There are prominent technical challenges arising from spinning a battery on the order of kilohertz as required by magic angle spinning in order to obtain spectral resolution that are addressed and enable operando solid-state NMR. The operando NMR measurement allows for continuous monitoring of the battery components and of potential metastable states that may exist during…