The development trend of the recorder

Recorder's history review and current conditions

The development of the recorder has a history of several decades. As far as our country is concerned, there are also more than 40 years of history. After several generations of product evolution. China's recorder industry has made great progress, but in recent years the output has remained at about 50,000 units. The recorder industry is not without development, but slowly new things and ideas are gradually coming out to expand knowledge. The current recorder has an irreplaceable position compared with the past. He is mainly reflected in the following aspects:

1 Input signal type, range can be set. In the past, recorders were only able to perform input signals, and at the same time, the range was very small. Now that the measurement range has become wider, the input signal types have also become wider.

2 Measurement display accuracy and recording accuracy increase. Take the temperature and humidity monitor as an example, the accuracy of the earliest temperature and humidity monitor has been gradually increased from the original 5% to 7% RH to the current 3% RH, and the accuracy in meteorology measurement is only a few points.

3 The display recording function increases. Today's loggers generally use digital analog mixed recording, and some can also make and record. It has not only the trend record of the analog recorder, but also the table format record of the digital recorder. It also has the function of recording the curve zero shift function and the time coordinates of the recorded curves of multiple channels. In terms of display, digital display and beam display are mostly used. In the past, the use of scale pointers was a relatively new method. New reforms reduced reading errors in the measurement process.

4 Increased measurement and recording speeds. The minimum recording time is 2 seconds.

5 has communication with the computer. Modern control systems, irrespective of the number of measurement points or the number of control loops, are quite numerous. Field instruments must communicate with computers via communication interfaces in order to centralize control and management.

6 Data calculation and analysis functions. Today's recorders basically have a calculation software that can form a graph of the collected data and display it visually. The collected data can also be stored as an EXCEL spreadsheet file, which is convenient for users to save and process data, and can draw bar graphs, pie charts, prints, and the like. This makes it easy for us to see how the data changes.