The temperature instrument

Temperature instrument is a branch of many instruments, common temperature instrument thermometer, temperature recorder, temperature transmitter and so on. Temperature measuring instruments can be divided into contact type and non-contact type according to the way of temperature measurement. Generally speaking, the contact thermometer is relatively simple, reliable and has high measurement accuracy. However, due to the sufficient heat exchange between the temperature measuring element and the measured medium, a certain amount of time is needed to reach the heat balance, so there is a delay in temperature measurement. At the same time, due to the limitation of high temperature resistant materials, it can not be applied to high temperature measurement above 1600℃. Non-contact instrument temperature measurement is through the principle of heat radiation to measure the temperature, the temperature measuring element does not need to contact with the measured medium, the temperature range is wide, is not limited by the temperature limit, it will not destroy the temperature field of the measured object, the reaction speed is generally faster; However, due to the influence of external factors such as the emissivity of the object, measurement distance, dust and water vapor, the measurement error is large.

Pressure gauge

Pressure measuring instrument is used to measure gas or liquid pressure industrial automation instrument, also known as pressure gauge or pressure gauge. Pressure measuring instruments are divided into liquid column type, elastic type, load type and electric measurement type according to the working principle.

Material level meter

Level measuring instrument is widely used in industrial production process, is a kind of measuring instrument can be used to measure liquid level, solid particles, powder level, and even can measure the position of liquid-solid phase interface. Usually, in the instrument and instrument industry, the level measurement instrument measuring liquid level height is referred to as the level meter, and the level measurement instrument measuring solid and powder position is referred to as the material level meter.

Flow meter

Flow metering is the eye of industrial production. Flow measurement is one of the components of metrology science and technology, which is closely related to national economy, national defense construction and scientific research. To do a good job of this work, to ensure product quality, improve production efficiency, promote the development of science and technology have an important role, especially in the energy crisis, industrial production automation degree is increasingly high in today's era, flow meter in the national economy status and role is more obvious.

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