The PDM2 Multi-Channel Phosphorescent (Fluorescent) Tracer Particle Detector is mainly used for the measurement of parameters such as the residence time of solid particles in the flow field in gas-solid two-phase flow. The fluorescence signal of the tracer particles passing through the front of the probe in two-phase flow is conducted to the optical detection device (photomultiplier tube PMT) at the back of the probe and converted into the corresponding electrical signal. The residence time of the tracer particles in the reactor is obtained through computer acquisition and processing.

The whole set of equipment consists of the PDM2 multi-channel phosphorescent (fluorescent) tracer particle detector mainframe, 2-16 probes, probe cable and application software.

Technical specifications

Instrument model: PDM2-2, PDM2-4, PDM2-8, PDM2-16;

Applicable environment: temperature 0-60 ℃, pressure <0.4Mp (standard probe);

Measuring range: velocity of tracer particles to be measured <40 m/s;

Measurement mode: contact on-line measurement;

Probe size: standard probe measuring end face diameter 10 mm, probe rod length 400-1000 mm;

Remarks: not applicable to transparent experimental equipment;

Product features

Small size of the product, less interference with the flow system;

The instrument can be connected to 2, 4, 8 or 16 probes at the same time, and can measure multiple measurement points simultaneously in real time;

Each channel is equipped with baseline and high-pressure adjustment functions respectively, and the sampling frequency (1Hz-2kHz) and the amount of sampling data are adjustable;

The system software functions include: raw data acquisition and display. Real-time or playback display each channel voltage-time curve; save each channel voltage-time data, calculate and save the time-averaged value of each channel voltage, calculate the statistical value of the specified zone data and time information. Setting and saving operation parameters including sampling frequency, sampling points, range selection, measurement point position or sensor setting, and operation conditions (flow rate, temperature, pressure), etc.; the saved data file can be shared by EXCEL software. The application measurement software can be run in a windows environment.

南京九章化工科技有限公司