| 摘要 |
Disclosed herein is a hand-held impedance spectroscopy analysis device for analyzing fluids wherein the impedance spectroscopy device is in communication with a sample ceil including a reservoir containing a fluid sample, the sample cell including a sample cell circuit and two metal plates in contact with the fluid sample and in contact with a pair of electrodes. The analysis device includes a processing system including a main processor which is responsive to commands from a user Input device, and a data acquisition circuit which receives power and command signals from the processing system. The data acquisition circuit is operable to transmit excitation signals to the electrodes, wherein the excitation signals are applied at each frequency in a predetermined set of frequencies, and the data acquisition circuit is further operable to receis'e response signals from the electrodes indicative of the fluid sample at each frequency in the predetermined set of frequencies and to convert the response signals into a magnitude and phase angle data set. The main processor is operable to receive the magnitude and phase angle data set from the data acquisition circuit and to receive at least one of calibration information and temperature information from the sample cell circuit and perform an impedance spectroscopy algorithm using the magnitude and phase angle data set and the information from the sample cell circuit to determine a fluid property. |
