Our Storage Furniture is Assemble easily. Made of high-quality material with exquisite workmanship, natural, environmental-friendly, safe, sturdy and durable to use.
We have wide selections storage furniture to help you get good choice .
The storage furniture has a special style design. We can use them as a Bookcase or a storage furniture in the living room. We can also use them as a showing furniture because there are many cubes which can put some books or artworks.
The storage furniture doesn't take up too much room,but it can help us put the things in order. We can also set it in the bedroom as a bedside storage cabinet . You only need to assemble the Bedside Table yourself, which is no problem due to the clear manual and custom parts.
Cube Storage Furniture,Bedside Cabinet Bookcase,Toy Collection Cabinet,White Storage Cabinet With Doors Baklam , https://www.baklamfurniture.com
Black box experiment
Experiment 20 Black Box
ã€Purpose requirement】
1. Learn to distinguish components based on the characteristics of different types of electrical components;
2. Be further familiar with the use of oscilloscopes, signal generators, digital multimeters and other instruments;
3. Cultivate the ability to design test steps and comprehensive analysis and reasoning.
ã€Experimental Principle】
The black box is a sealed component box used in the experiment of judging electrical components. The components in the box may be: dry batteries, fixed resistance, capacitors, semiconductor diodes. The two terminals visible outside the box may also be open or short-circuited (that is, connected by wires). Each component is connected to the terminal, and at most one component is connected between the two terminals. The components are not connected in parallel circuits, so the distribution of components should be unique. During the experiment, the box must not be opened by itself. It is required to design the experimental scheme and detection steps to determine the components in the box.
ã€Instruments】
Serial number
equipment name
Model / Specification
Unit price (yuan)
Remarks
1
Dual Trace Analog Oscilloscope
MOS620CH / 20MHz
1800
Can choose one
Digital storage oscilloscope
TH1022A / 25MHz
2450
2
DC power supply
DH-VC1
900
Compatible with other experiments
3
Signal generator
DH-WG1
900
4
4 and a half digital multimeter
DY2106
290
5
Resistance box
ZX21
300
6
Sealing element box
150
Also known as black box
7
Switch, wire