detectivity

detectivity

[‚dē‚tek′tiv·əd·ē]
(electronics)
The normalized radiation power required to give a signal from a photoconductor that is equal to the noise.
References in periodicals archive ?
With the objective to quantify the suitability of PVDF films as IR detector materials, when using the surface resistivity mechanism, instead of pyroelectricity, the surface resistivity surface effect detectivity D* was reported when considering bolometry.
in collaboration with the Army Research Office (ARO), has successfully demonstrated pixel-scale detectors with room temperature Detectivity (D*) exceeding 1x10(14) Jones.
FTIR spectrometer is a useful tool for various science and engineering fields, because of its high sensitivity or detectivity of traces amount of substance, low noise to signal ratio and this method is an easy and inexpensive one.
An effective increase of the detectivity D* can be reached by a reduction of the thermal capacity for what the device has to be scaled down.
Only semiconductor materials make it possible to produce thermopiles with high detectivity using a conventional IC process like the CMOS process.
The agreement gives CSP access to OI Analytical's sensitive GC detection technology, including ultra-sensitive sulphur and phosphorous detectors offering detectivity better than 1pg/sec S and 0.
The detector temperature was maintained at 15 [degrees]C to lower the noise relative to room temperature and still provide high detectivity up to 1.
One of the biggest surprises for the team was achieving relatively high infrared detectivity (the radiation power required to produce a signal from a photoconductor) using a carbon nanotube thin film only a few nanometers thick, Wang points out.
In order to get a high detectivity, good stability over the required temperature excursion range, and a cutoff wavelength at 3.
Noise - a limiting factor for thermal resolution and detectivity - including an outline of the mathematics and noise sources in thermal infrared sensors;
6W) and has high detectivity, with a noise floor of less than 500 equivalent photoelectrons and a true dynamic range greater than 33dB.