Digital circuit experiment box is the basic experiment teaching instrument of â??digital circuitsâ?�, â??pulse circuitâ?� and curriculum designing. When this product was designed full considerate the experimental teaching characteristics, elaborate design, product performance is stable and reliable, and experimental flexibility, to cultivate the students' practical ability, is an ideal teaching equipment in the higher colleges, the professional technical institute, the technical secondary school. II. Equipment system function Digital circuit experiment box motherboard is made of 2 mm thick printed circuit board, front printed with components graphic symbols and relevant attachment, opposite is printed wire, and welding related components, the motherboard set with several high reliable multi-function chips socket (20 P, 40 P), several high reliable silver coating long copper tube, for insert resistor capacitor, diode and the transistor, etc, and with the universal bread board for insert all kinds of components. Also has more than 200 high reliable locking type turn fold socket (and internal connect with integration piece socket, silver coating long copper tube and fixed devices), when as an experimental connection, test points, experimental wiring, just take lock plugs wire to connect with each other. The experiment box adopts high-strength aluminum alloy, appearance is elegant.
Experiment project 1. DC motor experiment a), recognize experiments b) DC generator c) DC shunt motor d) DC motor start: series resistance start, reduction voltage start e) The method of DC motor change veer f) DC motor speed regulation characteristic experiment: change the armature loop in resistance, excitation circuit in a resistance, to reduce the armature voltage 2. Single-phase transformer experiment a) Single-phase transformer variable ratio K b) Single-phase transformer no-load experiment, acquisition transformer no-load data IO, PO and UO. c) Single-phase transformer short-circuit experiment, acquisition transformer short-circuit data UK, IK and RK. d) Single-phase transformer load experiment, acquisition transformer load data UZ = f (IZ). 3. Three-phase transformer experiment a) Three-phase transformer winding polarity measurement b) Three-phase transformer coupling group measurement 4. Asynchronous motor experiment a) Three-phase winding asynchronous motor stator resistance test b) Three phase asynchronous motor no-load experiment: acquistion no-load voltage U0, current I0, three-phase power P0, draw no load characteristic curve c) Three phase asynchronous motor short circuit experiment: acquistion shorted UK voltage, current IK, power PK, draw short circuit characteristic curve d) Calculate three phase asynchronous motor parameter e) Mechanical properties of three phase asynchronous motor in various operation conditions
1. The four truckle with crack slot in order to move and install on the work table. Due to the point and height of the panel is adjustable, convenient for efficient experiment. Panel grooves intervals are 25 mm, can easily move all kinds of components insert on it. 2. Various pneumatic components into separate module which is equipped with bottom panel of elastic pins, when training they can build all kinds of pneumatic circuits on general aluminum, fast loading and unloading, flexible layout, clear pneumatic circuit. 3. Use mute air compressor, low noise operation, provide good training environment for the training room. 4. Pneumatic circuits using fast connection, convenient student build pneumatic circuits rapidly. The electric control circuits adopt special training of with protection inner energy connect wires, students can design themselves pneumatic application system, can exercise the student's practical and thinking ability of theory combine with practice, has strong training. 5. Electrical control units used for independent relay control unit and multi-button unit control electrical, simple and clear! In addition the user can also choose PLC programmable controller, to deepen the understanding and mastery of PLC programmable controller. PLC programmable controller and PC microcomputer communication realize microcomputer intelligent control. Another the way of PLC control combines with traditional relay control strengthen the students understanding to the control theory. 6. High safety: have over-current protection ,the power supply will cut off as earth leakage exceed 30mA;the electrical control use DC 24v power supply ,with over current protection ,can prevent damage to the equipment caused by improper operation .system nominal pressure is 0.6MPa.
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Camping Shovel Features:50# carbon steel 1.5mm and spraying plastics on the surface 15.5cm in width. Unit Measure: 59.5cm Material: A3 Carbon Steel Digging Tool Type:Garden Trowels Shovel Material: A3 Steel Color:Black Outdoor Project:camping, Hiking Function:defense, Spade, Mountain Axe, Hoe, Hammer Finishing:power coating Features:very practical and convenient.
