Chemical digital experiment system

Abstract

The invention belongs to the field of scientific education, and discloses a novel chemical digital experiment system. The system comprises a reactor, a sensor, a closed-loop acquisition control integrator, a computer and characterization software to form a computer-integrator-reactor-sensor-integrator-computer closed-loop system. The integrator comprises a signal conditioning card, an acquisition control card, a driving card and an actuator, wherein the acquisition control card comprises a data acquisition card and an automatic control card, and the actuator comprises a medicine conveyor, a magnetic stirrer, a constant temperature controller, a signal generator, a potentiostat, a constant current source, an LED light source and the like. The novel chemical digital experiment system can quantitatively convey drugs, perform magnetic stirring and constant-temperature heating, measure and control temperature, potential, current, conductivity, concentration, acidity, luminosity, turbidity, fluorescence, air pressure and the like, and realize digitalization, informatization, automation and platformization of chemical experiments, and has the remarkable advantages of automatic operation, rapid experiment, clear process, visual trend and accurate quantification.

Description

technical field [0001] The invention belongs to the field of science education, in particular to a novel chemical digital experiment instrument system. Background technique [0002] In 1978, Robert Tinker developed the first digital experiment with a thermocouple—the cooling curve experiment of naphthalene. During the experiment, students can directly observe the temperature change process in real time, breaking through the previous need to complete the experiment before drawing the temperature change curve. Restrictions can better focus students' attention on exploring the reasons behind experimental phenomena. This experimental method has attracted the attention of the educational circles in the United States and the United Kingdom, and made people realize the future of educational modernization, so people began to research and develop sensors, computer software and related experiments suitable for educational applications. It was not until the beginning of 1999 that digi...

AI Technical Summary

Problems solved by technology

[0006] The problems and defects of the existing technology are: the existing digital experimental instruments can only perform unidirectional signal sensing, data acquisition and data processing, and have not formed a complete closed-loop system; the sensors used need to be equipped with digital transmitters to Input data collector; lack of automatic reagent conveyor, can not automatically and accurately add experimental reagents; lack of reaction condition controllers, such as agitator, thermostat, etc., can not automatically control experimental conditions and automatically complete experimental operations; lack of signal generator, constant potential controller, constant current source and automatic end point controller, etc., the experimental functions, items and accuracy are limited

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