Experimental instruments are instruments used for specific experiments in natural sciences, mainly used in physics, chemistry and biology. Modern commonly used experimental instruments include test tube, beaker, evaporating dish, crucible, alcohol lamp, Buchner funnel, gas washing bottle, drying tube, tray balance, measuring cylinder, volumetric flask, burette and measuring device.
Biochemical incubator: low-temperature storage medium, microbial culture, environmental test, etc.
High and low temperature test chamber: alternating, damp and hot, for industrial and mining enterprises, laboratories, scientific research units, etc. Used for testing and testing in high and low temperature environment.
Aging test chamber: temperature, time and heating rate can be programmed, which is suitable for all kinds of aging tests.
Water bath pot: constant temperature digital display, used for drying, concentration, distillation and impregnation of chemical reagents and biological products, and can also be used for temperature tests such as constant temperature heating in water bath.
Importance of laboratory instruments
Self-made experimental instruments refer to finding relevant materials to develop experimental instruments that meet the teaching requirements when there are no ready-made commercial instruments available for purchase, or when they can be bought but can't afford them.
Its significance mainly lies in:
1, which solves the problem of insufficient old instrument resources and poor matching with new courses and textbooks in a transitional way, and provides conditions for comprehensive and effective experimental teaching.
2. This also creates conditions for the development of industrialized commercial instruments.
3. Cultivate students' innovative spirit and practical ability. Self-made activities of students' teaching AIDS (learning tools) are a form and an important part of physics experiment teaching activities.
4. The process of making teaching AIDS is the process of students' thinking. From the initial conception in my mind, to the hands-on design, and then to the repeated consideration and modification in the middle process, I need my own thinking to make the next step. The final completion of the intermediate experience is actually a process of finding and solving problems, which not only exercises students' practical ability, but also cultivates students' good habits of positive thinking.