Electrochemical Impedance Spectrometer
General Description
The CYBRES MU (Measurement Unit) is a compact device for differential electrochemical impedance spectroscopy (EIS) with two and four electrodes in the low frequency range. The device is able to perform accurate differential measurements in the time and frequency domain, comparing the properties of two liquid or organic samples. Such a task arises in applications where weak ionic, electrochemical or electrophysiological dynamics should be recorded and analysed in real time in vivo and in situ. This EIS meter is capable of performing excitation spectroscopy by optical or electromagnetic means. In addition to spectral, correlation and regression analysis, the signal scope mode is also suitable for fast distortion analysis. The system has been developed for single measurements or for long-term monitoring, also with graphical online output on the web. The electrochemical measurement system is a finalist of the EC innovation conpetitions 2016, 2019.
Applications
- electrochemical impedance spectroscopy
- precise industrial liquid measurements
- differential electrochemical measuring devices for research/laboratory purposes
- detectors for weak ionic changes in liquids caused by optical, electromagnetic, magnetic and other excitations
- analysis and detection of non-chemical treatments of liquid samples
- long-term monitoring of liquids and organic tissues, e.g. for quality control purposes, in the analysis of biochemical reactions
- analysis of spin-controlled electrochemical properties (e.g. chemical reactivity)
Features
– main processor
– hardware support of EIS analysis
– non-volatile (flash) memory
– sampling frequency
– electric excitation
– optical excitation
– consumed current
– conductivity measurements
– temperature resolution
– frequency spectra for EIS
– measurement modes
– EIS analysis
– duration of long-term measurements
– interface
ARM cortex M3 MPU, 80 MHz
PSoC system
512 Mb
(12-24 bits) up to 1 Msps
0.01V, 0.1V, 1V
470nm (blue light), other excitations are possible
90-120mA
0.6 uS/cm-200 mS/cm
up to 0.001C
8Hz-0.1MHz/0.2MHz/0.65MHz (recommended/typical/maximal)
impedance spectrometer, signal scope, long-term impedance measurements
FRA, RMS, correlation, regression, statistical, excitation, electrochemical stability
on the level of weeks
USB 2.0 (USB hub and USB-to-USB isolator are recommended)
Related Products/Components
- Used plastic containers: google for “Universal Kunststoffdose (Pathogefäss) 20ml”; it is available in multiple shops, ebay, amazon
- Mini-PC with Intel Celeron J4125 (Win10 PRO OS) for advanced connectivity for long-term autonomous operation
- Different electrodes
Manuals & Application notes
- CYBRES Measurement Unit MU3: SHORT MANUAL (English, German, French, Ukrainian, Arabic, Chinese)
- CYBRES EIS Differential Impedance Spectrometer for electrochemical and electrophysiological analysis of fluids and organic tissues: EXTENDED USER MANUAL
- Application Note 20. Increasing accuracy of repeated EIS measurements for detecting weak emissions
- Application Note 24. Analysis of electrochemical noise for detection of non-chemical treatment of fluids
- Application Note 26. Methodology and protocols of feedback-based EIS experiments in real time
- Application Note 27. Using regression scan for electrochemical ’treatment-during-measurement’ experiments
- short information: Innovation — CYBRES EIS spectrometer, 2016
- Presentation “Characterizing the non-chemical water treatment – advanced biological and electrochemical approaches” on the XIII conference of physics, chemistry and biology of water, 2018
- Presentation “Remote Consciousness: Latest Results from Optically Excited Electrochemical Impedance Spectroscopy”, on the XIII conference of physics, chemistry and biology of water, 2019
Publications
- S.Kernbach, Replication Attempt: Measuring Water Conductivity with Polarized Electrodes, J. of Scientific Exploration, Vol. 27, No. 1, pp. 69–105, 2013
- S. Kernbach, O. Kernbach. On precise pH and dpH measurement, IJUS, 5(2), 83-103, 2014
- S.Kernbach, I.Kuksin, O.Kernbach, A.Kernbach, The Vernadsky scale — on metrology of EIS in time-frequency domain, IJUS, 15–16(5), pp.143–150, 2017
- S.Kernbach, O.Kernbach, Reliable detection of weak emissions by the EIS approach, IJUS, E1, pp.90-103, 2017
- S.Kernbach, I.Kuksin, O.Kernbach, On Accurate Differential Measurements with Electrochemical Impedance Spectroscopy, WATER, 8, 136-155, 2017, doi: 10.14294/WATER.2016.8
- S. Kernbach. Biophysical effects of the circular Poynting vector emitter, IJUS, Issue E2, pages 23-40, 2018, doi: 10.17613/sp8t-gz69
- S.Kernbach, Distant Monitoring of Entangled Macro-Objects, NeuroQuantology, 17(3), 19-42, 2019, doi: 10.14704/nq.2019.17.03.197
- S. Kernbach, M. Trukhanova, V. Zhigalov, V. Panchelyuga, Para- and ortho- isomers of water: theory, experiments and new opportunities for multidisciplinary water research, Conference on the Physics, Chemistry, and Biology of Water, Oct, 13-16, 2022, Bad Soden, Germany
- S. Kernbach, O. Kernbach, Environment-dependent fluctuations of potentiometric pH dynamics in geomagnetic field. Electromagnetic Biology and Medicine, 41(4), 409–418, 2022, doi: 10.1080/15368378.2022.2125527
- S. Kernbach Electrochemical Characterization of Ionic Dynamics Resulting from Spin Conversion of Water Isomers, 2022 J. Electrochem. Soc. 169 067504, doi: 10.1149/1945-7111/ac6f8a
- S. Kernbach, Electric-field-coupled oscillators for collective electrochemical perception in biohybrid robotics. Bioinspiration & Biomimetics. 17, 2022, doi: 10.1088/1748-3190/ac93d8
- S. Kernbach, O. Kernbach, I. Kuksin, A. Kernbach, Y. Nepomnyashchiy, T. Dochow, A.V. Bobrov, The biosensor based on electrochemical dynamics of fermentation in yeast Saccharomyces cerevisiae, Environmental Research, Volume 213, 2022, 113535, doi: 10.1016/j.envres.2022.113535