Use of infrared thermometer in detection system
The function of the detection system is the product of the development of infrared thermometer technology to a certain stage. The detection system is an organic combination of thermometer, measuring instrument, conversion device, etc.
The error is the difference between the measured value and the true value, which reflects the accuracy of the measurement.
With the development of science and technology, people have higher and higher requirements for measurement accuracy. It can be said that the value of measurement work depends on the accuracy of measurement. When the measurement error exceeds a certain limit, the measurement work and measurement results lose their meaning, and may even cause harm to the work. Therefore, the analysis and control of measurement errors have become an important aspect of measuring the level of measurement technology and even the level of science and technology. However, due to the inevitability and universality of error, people can only control the error to the smallest possible range, but cannot completely eliminate it.
On the other hand, the reliability of measurement is also crucial. Different occasions and different systems have different requirements for the reliability of measurement results. For example, when measured values are used as control signals, attention should be paid to the stability and reliability of the measurements. Therefore, performance indicators such as measurement accuracy and reliability must be connected and adapted to the specific purpose and requirements of measurement. In this way, the functions and characteristics of the infrared thermometer can be better utilized!
In engineering practice, a thermometer needs to be organically combined with multiple measuring instruments to form a whole to complete the detection of electrical signals, thus forming a detection system. With the continuous development of computer technology and information processing technology, the content involved in the detection system has also been continuously enriched. In the modern production process, the detection of process parameters is carried out automatically, that is, the detection task is automatically completed by the detection system. Therefore, it is very necessary to study and master the composition and principle of the detection system.
The purpose of measurement is to obtain the true value of the measured value through measurement. However, in the actual measurement process, due to various reasons, such as the unsatisfactory performance of the thermometer itself, imperfect measurement methods, external interference, human negligence, etc., the measured values of the measured parameters will be inconsistent with the true values. The degree of inconsistency is expressed by measurement error.
The infrared thermometer in the system is a device or device that measures the size of the object to be measured and outputs a corresponding available output signal. The data transmission link is used to transmit data. When several functional links of the detection system are separated independently, data must be transmitted from one place to another. The data transmission link completes this transmission function.
From the perspective of the infrared thermometer product itself, the infrared thermometer is a mature product. With the development of technology in recent years, on the one hand, infrared thermometer products have become intelligent, adding functions such as self-diagnosis and self-calibration. In this way, some online self-diagnosis functions can be realized, the maintenance workload of the equipment can be reduced, and the traditional offline inspection method can be replaced by online inspection. The online inspection method of infrared thermometer is becoming increasingly mature from its birth to application, but it will take some time to be promoted in various industries in the world. The biggest difficulty is that as an instrument, the infrared thermometer's online inspection specifications need to be recognized by the national technical supervision department and relevant industry associations.
The data processing link is to process and transform the output signal of the thermometer. Such as amplifying, computing, filtering, linearizing, digital-to-analog (D/A) or analog-to-digital (D/A) conversion of the signal, converting it into another parameter signal or some standardized unified signal, etc., so that it can output a signal It is convenient for display and recording, and can also be connected to a computer system for information processing of measurement signals or for automatic control of the system. The data display link converts the measured information into a form acceptable to the senses to achieve the purpose of monitoring, control or analysis. The measurement results can be displayed in analog or digital formats, and can be automatically recorded by a recording device or printed out by a printer.
