Quartz Enhanced Photoacoustic Spectroscopy for Detection of Improvised Explosive Devices and Precursors

Table 2

Specifications of the QTF.

Size	6 mm × 1.5 mm × 0.6 mm
Nominal frequency	32.768 kHz
Frequency tolerance	±20 ppm at 25°C
Operating temperature range	−10°C to +60°C
Load capacitance:	12.5 pF
ESR	35 k
Shunt capacitance	0.85 pF
Motional capacitance	2.0 fF