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web 

openqcm.com

 

mail 

[email protected]

 

Centro Direzionale, Isola G7 

80143 Naples (Italy) 

phone +39 081 0320584

 

 

2 

 

Index 

Intro............................................................................................................................................................... 3 

Sensing Principle ........................................................................................................................................... 3 

Electronic Hardware ..................................................................................................................................... 5 

Teensy ....................................................................................................................................................... 5 

Frequency Synthesizer AD9851 DDS/DAC ................................................................................................ 5 

Gain and Phase Detector AD8302 ............................................................................................................. 5 

How to Setup openQCM Q-1 Sensor Module ............................................................................................... 6 

How to Finely Check the Sealing of the Sensor Module ........................................................................... 7 

Software GUI Python version 1.1 .................................................................................................................. 8 

Version History .......................................................................................................................................... 8 

Description ............................................................................................................................................ 8 

Requirements ........................................................................................................................................ 9 

Installation Guide ...................................................................................................................................... 9 

Usage ......................................................................................................................................................... 9 

openQCM Q-1 GUI Description ............................................................................................................... 10 

Calibration Procedure ............................................................................................................................. 11 

Measurement Procedure ........................................................................................................................ 12 

Temperature, Voltage and Material Warning Notice ................................................................................. 14 

Temperature ........................................................................................................................................... 14 

Voltage .................................................................................................................................................... 14 

Material ................................................................................................................................................... 14 

openQCM Open Source Device Important Notice ...................................................................................... 15 

FCC Warning ............................................................................................................................................ 15 

Important Notice ........................................................................................................................................ 16 

 

 

 

 

Summary of Contents for Q-1

Page 1: ...entro Direzionale Isola G7 80143 Naples Italy phone 39 081 0320584 1 openQCM Q 1 User s Guide openQCM Q 1 Quartz Crystal Microbalance with Dissipation Monitoring based on Scalar Network Analyzer authors openQCM Team version 1 1 date OCT 2018 ...

Page 2: ...o Setup openQCM Q 1 Sensor Module 6 How to Finely Check the Sealing of the Sensor Module 7 Software GUI Python version 1 1 8 Version History 8 Description 8 Requirements 9 Installation Guide 9 Usage 9 openQCM Q 1 GUI Description 10 Calibration Procedure 11 Measurement Procedure 12 Temperature Voltage and Material Warning Notice 14 Temperature 14 Voltage 14 Material 14 openQCM Open Source Device Im...

Page 3: ...tions in mass and in the viscoelastic properties of the material on the surface of the quartz crystal The electronic mainly consists of a scalar network analyzer the main block diagram is showed in figure The scheme of measurement follows the principle of passive interrogation of the quartz sensor by sweeping around the resonance frequency The actuation signal is generated using the AD9851 DDS DAC...

Page 4: ...penQCM Q 1 electronic consists mainly of two boards i the main board features the network analyzer and Teensy microcontroller and ii the secondary board which is inserted in the fluidic cell which features the electro mechanical connections with the quartz crystal sensor using pogo pin and also a temperature sensor which is mounted as close as possible to the quartz crystal sensor in order to meas...

Page 5: ... referenced to a stable clock source In this application the AD9851 was connected to a 30MHz standard clock oscillators The DDS can generate a sine wave with frequency from DC up to 72 MHz with an output tuning resolution of about 0 04 Hz when clocked at 180 MHz The output frequency is controlled by the digital pin W_CLK and S_LD using a defined protocol of communication The wide range frequency o...

Page 6: ...pins to ensure connection to the quartz crystal sensor The first couple is suitable for 14 mm diameter quartz crystal one sided contacting 2 Insert the quartz crystal into the sensor module housing making sure that the electrodes on the rear surface of the quartz are in contact with both pogo pins 3 Close the sensor module with the cover while the closing lever is positioned on the min ...

Page 7: ...ut using 3D printing technology so that the fine adjustment of the sensor module measuring cell can depend on the specific device used Once the adjustment lever has been positioned in the appropriate working position it is recommended to keep its position fixed during the measurement cycle It may be possible to observe frequency drifts because the cover presses too much on the quartz surface of th...

Page 8: ...ting and Powering the openQCM project Novaetech S r l Description An open source Python application to display process and store data in real time from the openQCM Q 1 Device The main functionality is the real time monitoring of frequency and dissipation variations of a quartz crystal microbalance through the analysis of the resonance curve The application includes internal and external packages I...

Page 9: ...1 openQCM_Q 1_py_v1 1 zip Using Anaconda Windows macOS Linux 1 download and install Anaconda3 for Python 3 6 version Anaconda3 5 1 0 https repo continuum io archive 2 Open anaconda prompt windows or terminal macOS and Linux and type conda install pyqtgraph pyserial python m pip install upgrade pip python m pip install upgrade h5py pip install progressbar Linux 1 Open a terminal and type sudo apt g...

Page 10: ... calibration mode 2 Available COM port note the software shows only the port connected to the device 3 Frequency drop down menu select the working frequency fundamental and overtones Radio Button 4 Flag Txt export sweep file radio button to log data for each sweep cycle of the measurement raw data Real Time Plots 5 Amplitude Phase displays the amplitude and phase curve during the sweep procedure 6...

Page 11: ... openQCM Q 1 Device 2 Select the quartz crystal type 5 MHz or 10 MHz fundamental frequency 3 Press START button for starting calibration procedure Follow the indication in the anaconda prompt to check info and progress of the calibration please note that calibration takes roughly 50 sec to complete Please do not interact with the GUI during the scan 4 When anaconda prompted Please now click STOP t...

Page 12: ...at is fundamental frequency or overtones from the drop down menu 3 2 Optional Flag Txt export sweep file if you want to store raw data corresponding to each sweep 3 Press start button to initiate a new data acquisition measurement 4 Frequency dissipation and temperature real time data are automatically stored each time a new acquisition is initiate Data file is stored in the following directory OP...

Page 13: ...web openqcm com mail info openqcm com Centro Direzionale Isola G7 80143 Naples Italy phone 39 081 0320584 13 ...

Page 14: ...tion demonstration or evaluation purposes Users handling the device must observe good engineering practice standards Material openQCM devices are realized with the 3D printing technique The 3D printed case is made in Nylon strong and flexible plastic This material is very adaptable it is dishwasher safe and heatproof to 80 176 degrees The material datasheet is available at this link https goo gl N...

Page 15: ...construction and nature of the device it is the user s responsibility to take any and all appropriate precautions with regard to electrostatic discharge EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES openQCM currently deals with a variety of customers for products and therefore our arrang...

Page 16: ...0 and is accompanied by all associated warranties conditions limitations and notices Reproduction of this information with alteration is an unfair and deceptive business practice TI is not responsible or liable for such altered documentation Information of third parties may be subject to additional restrictions Resale of openQCM products or services with statements different from or beyond the par...

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