A dynamic impedance imaging system includes a dynamic impedance imaging sensor, an impedance detection and flow rate measurement module and an electrical impedance tomography (EIT) instrument. The impedance detection and flow rate measurement module is configured to detect an abnormal particle flowing through the dynamic impedance imaging sensor to obtain a flow rate of the abnormal particle, and generate a synchronous trigger signal. The EIT instrument is configured to inject a sinusoidal excitation current into the dynamic impedance imaging sensor under the trigger of the synchronous trigger signal, perform multi-channel interleaved sampled for the abnormal particle according to the flow rate to acquire multi-channel sampled data, and calibrate the multi-channel sampled data to implement impedance tomography imaging for the abnormal particle.

Provided is an electrolyte analysis device capable of suppressing a burden with respect to measurement while suppressing a decrease in accuracy of a measurement result.

An electrolyte analysis device 100 that measures a concentration of a specific ion in a sample using a plurality of ion selective electrodes of an ion selective electrode group 102, and a reference electrode 103 includes a water supply tank 107 configured to store system water used for at least one of solution sending, probe cleaning, and temperature adjustment in the electrolyte analysis device 100, a specimen dispensing device 101 configured to dispense a sample to be measured, a dilution tank 106 configured to dilute the sample dispensed by the specimen dispensing device 101 with the system water, a water quality measurement unit 200 configured to measure the ion concentration of the system water in the water supply tank 107, and a control device 111 configured to control the electrolyte analysis device 100, in which the control device 111 performs water quality determination processing of determining whether a water quality of the system water is normal or abnormal based on a measurement result of the water quality measurement unit 200.

A method of assessing the effect of a production chemical on the stability of a water and oil emulsion, the emulsion comprising the production chemical, is provided. The method comprises: applying a potential difference across the emulsion at a detection site; measuring a current flowing through the emulsion due to the applied potential difference; and using this measured current to assess the effect of the production chemical. The step of using the measured current to assess the effect of the production chemical may comprise determining, based on the measured current, whether a critical potential of the emulsion has been reached or exceeded. The emulsion may be a crude oil emulsion. It may be a water-in-oil emulsion. The production chemical may be an emulsion breaker. Also provided is an apparatus for assessing the effect of a production chemical on a water and oil emulsion.

A method of assessing the effect of a production chemical on the stability of a water and oil emulsion, the emulsion comprising the production chemical, is provided. The method comprises: applying a potential difference across the emulsion at a detection site; measuring a current flowing through the emulsion due to the applied potential difference; and using this measured current to assess the effect of the production chemical. The step of using the measured current to assess the effect of the production chemical may comprise determining, based on the measured current, whether a critical potential of the emulsion has been reached or exceeded. The emulsion may be a crude oil emulsion. It may be a water-in-oil emulsion. The production chemical may be an emulsion breaker. Also provided is an apparatus for assessing the effect of a production chemical on a water and oil emulsion.

A technique facilitates evaluation of a fluid flowing through a tubing and includes at least one sensor deployed along an interior of the tubing. Each sensor comprises a plurality of electrodes and insulation material disposed between the electrodes to isolate the electrodes from each other and to facilitate resistivity measurements. The plurality of electrodes comprises electrodes for emitting an electric current and for monitoring voltage so as to enable resistivity measurements with respect to fluid flowing through the tubing. The resistivity measurements may be used to determine a constituent fraction, e.g. a water fraction, of the fluid flowing through the tubing.

A technique facilitates evaluation of a fluid flowing through a tubing and includes at least one sensor deployed along an interior of the tubing. Each sensor comprises a plurality of electrodes and insulation material disposed between the electrodes to isolate the electrodes from each other and to facilitate resistivity measurements. The plurality of electrodes comprises electrodes for emitting an electric current and for monitoring voltage so as to enable resistivity measurements with respect to fluid flowing through the tubing. The resistivity measurements may be used to determine a constituent fraction, e.g. a water fraction, of the fluid flowing through the tubing.

The present patent application provides an instrument for mastitis detection and analysis, comprising: a computing module, a conductivity detection module and a temperature sensor; the conductivity detection module is used to detect the conductivity of a sample, and is used to send the detected sample conductivity data to the computing module; the temperature sensor is used to detect the sample temperature, and is used to send the sample temperature data to the computing module; the computing module is used to calculate the received sample conductivity and the sample temperature through a detection algorithm, and is used to detect and analyze the mastitis of the sample through the detection algorithm. The instrument for mastitis detection and analysis is convenient to be carried and easy-to-use, it can be quickly immerged into a milk sample to complete the detection, and the detection result can be obtained quickly.

A method of monitoring a concentration of sanitizer in a solution includes providing a device that includes a plurality of sensors. The method continues by executing, via the device, a calibration stage that includes placing the device in sanitizer-free water, wherein the device: determines a temperature of the water; conducts a water analysis; and measures, via at least one sensor, a baseline resistance of the water. Sanitizing compounds are added to the water; and the device executes an operational stage, wherein the device: determines a resistance of the water with the sanitizing compounds; calculates a concentration of the sanitizing compounds in the water, wherein the concentration is based on the temperature of the water, the water analysis, and the baseline resistance; compares the calculated concentration to a predetermined threshold concentration; and activates an indication module of the device based on the comparison of the calculated concentration to the predetermined concentration.

A method of monitoring a concentration of sanitizer in a solution includes providing a device that includes a plurality of sensors. The method continues by executing, via the device, a calibration stage that includes placing the device in sanitizer-free water, wherein the device: determines a temperature of the water; conducts a water analysis; and measures, via at least one sensor, a baseline resistance of the water. Sanitizing compounds are added to the water; and the device executes an operational stage, wherein the device: determines a resistance of the water with the sanitizing compounds; calculates a concentration of the sanitizing compounds in the water, wherein the concentration is based on the temperature of the water, the water analysis, and the baseline resistance; compares the calculated concentration to a predetermined threshold concentration; and activates an indication module of the device based on the comparison of the calculated concentration to the predetermined concentration.

There is provided a blood condition analyzing device including: an extraction unit configured to use temporal change data of an electrical characteristic of blood at an arbitrary frequency to extract a feature of the data; and a blood condition evaluation unit configured to evaluate a condition change of blood from a feature extracted in the extraction unit.