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The accuracy level of a pressure sensor is usually classified according to its margin of error. The different accuracy levels represent the amount of error in the measurement process of the sensor. Common accuracy classes include C3, C2, C1, G1, G2, G3 and G5. Among them, C3 has the highest accuracy, with an error range within ±0.020%, i.e., 2 parts per million accuracy; while G5 has the lowest accuracy, with an error range within ±0.5%, i.e., 5 parts per thousand accuracy.

To test a pressure sensor, it is necessary to look at its appearance, pressure response, zero point, circuitry and electrical performance. By comprehensively analyzing and judging the test results, the performance and condition of the sensor can be accurately assessed and provide strong support for subsequent maintenance and use.

Different types of air pressure sensors have significant differences in accuracy. Gauge pressure sensors are suitable for general applications, absolute pressure sensors provide high accuracy, and differential pressure sensors are used for flow and filtration monitoring. Choosing the right sensor requires considering accuracy requirements, application scenarios, environmental factors, and cost.

Gauge pressure sensor is a sensor that measures the relative pressure, i.e. the pressure value relative to atmospheric pressure. A differential pressure sensor is a sensor that measures the pressure difference between two measurement chambers. An absolute pressure transducer is a transducer that measures pressure relative to vacuum or absolute zero.

Submersible pump pressure sensors operate on the principle of electrical signal changes due to pressure changes. Typically, the pressure sensor contains a pressure sensitive element, when the external water pressure acts on the element, it will cause its deformation, which in turn changes the internal resistance or capacitance. This change is converted into an electrical signal, which is processed by a circuit that outputs a signal proportional to the water pressure. The submersible pump reads this signal to adjust its operating status, such as starting, stopping, or regulating the pump speed to adapt to different water depth conditions.

Pressure sensors, as an important component in pump controllers, are responsible for real-time monitoring of pressure changes in the pump system and providing accurate feedback signals to the control system. The application of pressure sensors has been transformed from traditional mechanical monitoring to digitalization and intelligence. It not only plays an important role in real-time monitoring of pumps, energy efficiency optimization, fault warning and so on.

With the rapid development of UAV technology, sensors become an important component to enhance the function of the drone. Application CapabilitiesThis paper will explore various types of UAV sensor technologies in detail, including radar, thermal sensors, infrared thermal imaging sensors, sensors, etc., and analyze them in the areas of measurement, navigation

By real time monitoring of key parameters such as gas leakage, air pressure, temperature, pressure monitoring, sampling rate, sensitivity, resolution, accuracy changes, etc., sensors can be applied in natural gas meters to detect problems in time before danger occurs, so that emergency measures can be taken to ensure safety and effectively prevent natural gas explosions.

Common sensor failure types include extended response time, reduced accuracy, zero drift, т.б. The preparation for fault diagnosis includes checking the sensor’s environment and confirming technical specifications. Common diagnostic methods include visual inspection, signal testing, and software analysis. Effective diagnosis can improve system safety and reduce downtime.

Sensors are an important part of modern technology. They provide data support for various smart devices by sensing changes in the physical world and converting them into digital signals. With the continuous development of technology, the performance of sensors is also continuously improved, and the sampling rate, sensitivity, resolution and accuracy as the important indexes to measure the performance of sensors are of great significance for the selection and application of sensors.