CN102541801A - Recording device for experimental step data - Google Patents

Abstract

A data recording device for an experiment, comprising a microprocessor CPU, the display end of the microprocessor CPU is connected with a liquid crystal display, the data storage end of the microprocessor CPU is connected with a memory, the input end of the microprocessor CPU is connected with a keyboard The microprocessor CPU is also connected to the power supply. The LCD screen displays the order of the steps and the situation of the added experimental drugs. The keyboard input is used to input the added link code and the number of drugs. The memory is used to save the link data. The processor CPU is the control center of the device, and the power supply is used to provide the power of the device. It is only necessary to save the link data synchronously entered during the experiment to the data recording device of the experiment link. Inquiring and displaying link data, the present invention has simple operation steps and is convenient to use, and can help experimenters accurately memorize experimental link data.

Description

A data recording device for experimental links

technical field

The invention relates to a data recording device, in particular to a data recording device for an experiment link.

Background technique

During the experiment, due to the heavy task, people may suspend the experiment halfway or cannot remember all the experimental data. If such a situation occurs, it will cause experimental mistakes, and even produce wrong experimental results. It can be seen that the experimental record The necessary experimental link data is very important. In the past, data records in experiments were often recorded on paper, but because the recording paper used in experiments was often lost or contaminated by experimental drugs, the recorded data was lost.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide a data recording device with simple steps and convenient operation in the experimental link.

In order to achieve the above object, the technical solution adopted by the present invention is: a kind of experiment link data recording device, comprises microprocessor CPU, and the display terminal of microprocessor CPU is connected with liquid crystal display screen, and the data storage terminal of microprocessor CPU is connected There is a memory, the input end of the microprocessor CPU is connected with the keyboard, and the microprocessor CPU is also connected with the power supply.

The keyboard is provided with a power switch key, a parameter setting key, keys for numbers 1-9, a backspace key, a separation key "/", and a unit conversion key.

The liquid crystal display includes the code name of the experiment link, the quantity of the substance in the experiment link and the unit display.

The memory is used to save relevant data of the experiment link.

The liquid crystal display) is to perform screen-changing and cyclic display of 7 link data per screen.

The maximum experimental link code name of the liquid crystal display is 99, and the number of substances in the experimental link can be input up to 10 digits.

The liquid crystal display screen can be used as an independent device, and can also be integrated with the experimental table and embedded on the experimental table.

The invention has the advantage that when working, as long as the quantity of items added in each key link is input while experimenting, the relevant link data can be saved at any time. When the experiment is suspended in the middle or the relevant link data is forgotten, the number of items added in a certain link can be known through the cyclic display of the liquid crystal display 1 or data query; the invention has simple operation steps and is easy to use, and can help the experimenter to accurately memorize the experimental data .

Description of drawings

Fig. 1 is the block diagram of circuit principle of the present invention.

FIG. 2 is a schematic diagram of the display screen 1 and the keyboard 2 of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

Referring to Fig. 1, 2, a kind of experiment link data recording device comprises microprocessor CPU4, and the display end of microprocessor CPU4 is connected with liquid crystal display screen 1, and the data storage end of microprocessor CPU4 is connected with memory 3, and microprocessor CPU4 The input terminal of the controller CPU4 is connected with the keyboard 2, and the microprocessor CPU4 is also connected with the power supply 5.

The keyboard 2 is provided with a power switch key, a parameter setting key, keys for numbers 1-9, a backspace key, a separation key "/", and a unit conversion key.

The display on the liquid crystal display 1 includes the code name of the experimental stage, the quantity of substances in the experimental stage and the unit display.

The memory 3 is used to save relevant data of the experiment link.

The liquid crystal display screen 1 performs screen-changing and cyclic display of 7 link data per screen.

The maximum experimental link code number of the liquid crystal display 1 is 99, and the number of substances in the experimental link can be input up to 10 digits.

The liquid crystal display 1 can be used as an independent device, and can also be integrated with the experimental table and embedded on the experimental table.

Described keyboard 2 comprises the button of numeral 1-9, decimal point button, backspace key, separation key "/", unit conversion key and setting parameter key; Memory 3 is used for preserving the relevant data of experiment link; Microprocessor CPU4 is this The control center of the device; the power supply 5 provides the power of the device; the separation key "/" is used to separate the second data of the same link. The unit conversion button is used for unit conversion, with mass unit m, volume unit V, mass fraction ω, volume fraction ψ, mole fraction x, density ρ, amount of substance n, temperature T and concentration c nine unit conversions.

The operation steps of the data recording device in this experiment link are as follows:

1) Enter experimental data

First turn on the power 6, first input the step code number, then press the setting parameter button 7, then enter the required number of links, then use the unit conversion button 8 to perform unit conversion, and finally press the setting parameter button 7 again, at this time the link data has been saved to the device. If you still need to further set the next link, you can repeat the above operations. In this cycle, the experimental data of multiple links can be entered. If you make a mistake, you can press the backspace key to delete the wrong number. If there are two experimental data in one experimental session, press the separator key "/" after entering a condition, then continue to input the required number of sessions, and finally perform unit conversion. The device can input up to 100 (00--99) links, and the number of substances in the experimental links can be input up to 10 digits.

The separation key "/" is used to separate the second data of the same link.

The unit conversion button 8 is used for unit conversion. There are nine unit conversions: mass unit m, volume unit V, mass fraction ω, volume fraction ψ, mole fraction x, density ρ, amount of substance n, temperature T and concentration c.

2) Display experimental data

The entered link data will be displayed in a loop on the LCD 1, with 7 lines (7 links) per screen.

3) Query experimental data

If there is a lot of data in the experimental stage, and you need to query the relevant data of a certain stage, first press the code name of the stage, then press the parameter setting button 3, and then press the parameter setting button 3, then the data of this stage can be displayed automatically.

An example is given below to illustrate the use process of the data recording device in this experimental link:

Suppose the experimental steps are: ① Add 5ml of water ② Add 10g of NaCl ③ Add 5g of phenol at 70 degrees Celsius

The operation steps are as follows:

① First turn on the power supply 6,

② First use the number keys to input the link code 01, then press the parameter setting button 7, then use the number keys to input the quantity 5, and finally use the unit conversion button 8 to convert to mass m, it is best to press the parameter setting button 3, then the first link is saved.

③ First use the number keys to input the link code 02, then press the parameter setting button 7, then use the number keys to input the quantity 10, and finally use the unit conversion button 8 to convert to volume V, it is best to press the parameter setting button 7, then the second link is saved.

④ First use the number keys to input the link code 03, then press the parameter setting button 7, then use the number keys to input the quantity 70, and finally use the unit conversion button 8 to convert to volume T, then press the separation key "/", use the number keys " 2" Enter the quantity 5, use the unit conversion button to convert to mass m, and finally press the parameter setting button 7, then the third link is saved.

⑤ If the input data is wrong, you can press the backspace key to delete the wrong number.

⑥ After saving, the three experimental links will be displayed on the LCD 1. If there are more than 7 steps in the experimental link, the relevant experimental data will be displayed cyclically on different screens.

⑦If you need to query the second experimental stage, first press the stage code 02, then press the setting parameter button 7 twice, you can get the data of the second stage on the LCD screen 1, and restore the original display after 5 seconds.

Claims (7)

1. A kind of experiment link data recording device is characterized in that, comprises microprocessor CPU (4), and the display end of microprocessor CPU (4) is connected with liquid crystal display screen (1), and microprocessor CPU (4) The data storage terminal of the computer is connected with the memory (3), the input terminal of the microprocessor CPU (4) is connected with the keyboard (2), and the microprocessor CPU (4) is also connected with the power supply (5). 2. A recording device for experimental links according to claim 1, characterized in that, the keyboard (2) is provided with a power switch key, a parameter setting key, keys for numbers 1-9, backspace key, and separation key. Key "/", unit conversion key. 3. The data recording device of an experiment link according to claim 1, characterized in that the display on the liquid crystal display (1) includes the code number of the experiment link, the quantity of substances in the experiment link, and the unit display. 4. An experiment link data recording device according to claims 1 and 2, characterized in that, the liquid crystal display (1) performs screen-changing and cyclic display of 7 link data per screen. 5. An experiment link data recording device according to claims 1 and 2, characterized in that the maximum test link code number of the liquid crystal display (1) is 99, and the number of substances in the experiment link can be input up to 10 digits. 6. A device for recording data during experiments according to claims 1 and 2, characterized in that the liquid crystal display (1) is an independent device. 7. A data recording device for an experiment according to claims 1 and 2, characterized in that the liquid crystal display (1) is integrated with the experiment table and embedded on the experiment table.

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