A simple and portable multi-channel pyrometer allowing temperature measurements down to 800 K on the microsecond scale
| Autor: | J M Montgomery, Zs. Jenei, William J. Evans, Yue Meng, Magnus Lipp |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Millisecond Materials science business.industry Advanced Photon Source 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Temperature measurement Diamond anvil cell law.invention Microsecond Optics law 0103 physical sciences Transient (oscillation) 0210 nano-technology business Instrumentation Low voltage Pyrometer |
| Zdroj: | The Review of scientific instruments. 89(12) |
| ISSN: | 1089-7623 |
| Popis: | The measurement of transient temperatures less than 1000 K for samples in laser-heated diamond anvil cells remains a challenge. Here we present the design and performance characteristics of a multi-channel pyrometer that works in the near-infrared from 1200 to 2000 nm. It has a relatively small footprint, is portable, requires only low voltage power supplies, and can report temperatures down to 800 K on the millisecond scale or faster. A single data point without averaging can be acquired in 14 µs (sampling rate of 7 kilosamples per second). In conjunction with a diamond anvil cell, the system delivers accurate and rapid measurements down to ∼830 K. The pyrometer has been successfully interfaced several times with the combined x-ray diffraction and laser heating system at the High Pressure Collaborative Access Team at the Advanced Photon Source at Argonne National Laboratories. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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