How openQCM Q-1 acquires resonance curves in order to monitor the dissipation effect.
openQCM Q-1 is based on AD8302 RF/IF Gain and Phase Detector which is a fully integrated system for measuring gain/loss trought quartz sensor and phase difference between actuation and sensor reaponse.
Thanks to DDS technology openQCM Q-1 is capable to passively interrogate quartz sensor not only at fundamental frequency, but also at its overtones (n= 1, 3, 5, 7) enhancing the measurement performances.
We re-design openQCM fluidic cell in order to obtain the maximum flexibility. As example we designed an innovative sealing system to fine tuning the oring pressure on the quartz crystal surface.
Electric interface with quartz sensors are guarantee by means high quality gold pogo-pins
A flexible holder design to host quartz with different frequencies and diameters. A unique quartz crystal chamber compatible with a wide range of sensors.
openQCM Q-1 measures frequency and Q-factor by sweeping around sensor resonance frequency thanks to the use of AD9851 component. AD9851 is a CMOS high speed DDS/DAC Synthesizer, which is capable of generate an sine wave with an arbitrary frequency from 0 to 60 MHz.
Main PCB electronic of openQCM Q-1 is designed with 2 connectors expansion slots which exploit all the functionality for custom expansion modules (eg.: thermal control by Peltier)
The modular design give us the maximum flexibility for future improvements. For example, it would be easier to modify the original main electronic design, based on the feedback coming from the scientific community, without the need to change the whole device.