String and linked pericide cardiac pump performance testing table

String and linked pericide cardiac pump performance testing table,Single -chip microcomputer development and application technology tr--ning desk

Feature

1. The entire device is beautiful and generous, with a reasonable structure design, and has a strong engineering atmosphere, which can fully reflect the concept of modern laboratories;

2. The equipment layout is reasonable, beautiful, the structure is clear, and the overall sense is strong. It can reflect the concept of the m--n experimental equipment in the laboratory.

3. The equipment is a self -propelled frame structure, and the feet are installed to facilitate the disassembly m--ntenance and handling of the system.

4. The flow measurement uses the turbine turbine meter. The data processor has a strong compensation function for the linear coefficient of the turbine flowmeter, and the flow data directly displays the flow data.

5. The centrifugal pump is placed above the water tank. The centrifugal pipe is installed with a bottom valve. At the same time, a centrifugal pump is installed to start the exhaust device to avoid the centrifuge of the centrifugal pump leaf wheel and the cavity soak in the water for a long time, which greatly extend the life of the equipment.

6. The entire system adopts a standard industrial instrument control system, which can perform chemical principles experiments. It is also a good platform for process automation and chemical testing instrument experiments.

7. Device design can be observed at 360 degrees to achieve comprehensive teaching and experiments.

Device function

1. Let students fully understand the structure and characteristics of the centrifugal pump, and be familiar with the working methods and operation processes of centrifugal pumps.

2. Being a single pump, dual pump string parallel operation.

3. Familiar with various pipes and valves that form the pipelines, understand the instrument and sensor detection equipment on the spot, such as temperature, pressure, electrical power, traffic, etc., and master the measurement principles and usage methods of turbine turbines.

4. Measure the pump characteristic curve between the pumps (H), axis power (n), and efficiency (η) and the flow of the pump (q) under constant speed conditions.

5. Determine the characteristic curve of the pipeline under the opening degree of the flow regulating valve.

6. Can be measured by dual pump string, parallelism and pipeline characteristics.

7. Change the pump characteristic curve between the pumps of the centrifugal pump speed measurement pump, axis power (n), and the traffic (q) of the efficiency (η) and the pump (Q).

8. Integrated control of full touch, high stability data transmission, hardware encryption.

String and linked pericide cardiac pump performance testing table,Single -chip microcomputer development and application technology tr--ning desk

I. Overview

This device consists of control screens, experimental hanging, and experimental tables. Through the experiment of the interface expansion, data acquisition, data display, keyboard control, and timer of the single -chip microcomputer through this experiment, it can be equipped with an emulator.

There is a current leakage protector. If there is a leakage in the control screen, the leakage current exceeds a cert--n value, that is, cutting off the power supply, which will protect personal safety.

The device adopts a component structure to replace the experimental module convenient. If you need to expand the function or develop new experiments, you only need to add an experimental module hanging box, and never eliminate it.

2. M--n technical parameters

1. Input power supply: AC220V ± 10% 50Hz

2. Working environment: temperature -10 ℃ ～+40 ℃ relative humidity <85%(25 ℃)

3. Device capacity: 200VA

4. Weight: 100kg

5. Dimensions (CM): 160 × 75 × 150

6. Hanging size (MM): 410 × 240 × 60

Third, the composition of the device

(1) Experiment screen: Place experimental hanging box during experiments, and provide experimental power supply, iron double -sided sub -light dense -densely spraying structure.

  1. Power input: The operating voltage is 220V ± 5%(50Hz), and the indicator light is on when input.

  2. Power output: There are second -level protection functions of fuse and leakage protection switch. Output single -phase AC 220V operating voltage has a high -precision voltage meter instruction.

Group A: DC voltage+5V/3A,-+5V/3A output, with a high-precision DC voltage gauge indicating voltage output, and automatic protection function.

Group B: DC voltage+12V/-12V output, current 2A output, high-precision DC voltage meter indicating voltage output, overcurrent automatic protection function.

3. Power output function generator:

A. Use direct digital frequency synthesis (DDS) to generate high -precision sine waves, square waves and triangular waves. Use a large -screen LCD to display the output frequency, waveform, and decline.

B. The amplitude of the sine wave output is ≥10V, the output impedance is 50Ω, and the distortion <1%(0.1Hz-1kHz).

C. Frequency range: 0.1Hz ~ 3MHz, use the keyboard to directly enter the digital settings frequency.

D. The output amplitude is adjusted by the potentiometer. The sine wave output has 20DB and 40DB attenuation.

E. Fang wave occupies the duty ratio. The regulation range: 1%-99%adjustment; the square wave and triangle wave use TTL level output.