IEC 60747-9-2013, also known as "Semiconductor Devices - Part 9-2013: Semiconductor Sensors," is an international standard published by the International Electrotechnical Commission (IEC). It specifies the general requirements and test methods for semiconductor sensors used in various applications. This article aims to provide a thorough understanding of the technical aspects covered in this standard.
Sensing Principles
The standard covers different types of semiconductor sensors based on various sensing principles. One common principle is the piezoresistive effect, where changes in pressure or strain cause a change in the sensor's resistance. Another principle is the Hall effect, where a magnetic field perpendicular to the current flow induces a voltage difference across the sensor. Capacitive, inductive, and optical sensing principles are also included in the standard.
Performance Requirements
IEC 60747-9-2013 defines several performance requirements that semiconductor sensors should meet. These requirements include sensitivity, linearity, temperature range, response time, and error tolerance. Sensitivity refers to the sensor's ability to detect small changes in the measured quantity. Linearity ensures that the relationship between the input and the output of the sensor follows a linear function. The temperature range specifies the minimum and maximum temperatures the sensor can withstand while maintaining accurate measurements. Response time measures how quickly the sensor reacts to changes in the measured quantity. Error tolerance sets the limits for permissible measurement errors.
Testing and Certification
To ensure compliance with the standard, semiconductor sensors undergo rigorous testing procedures. These tests evaluate the sensor's electrical characteristics, mechanical robustness, and environmental resistance. Electrical tests include measuring the sensor's resistance, capacitance, and current consumption. Mechanical tests assess the sensor's mechanical strength, such as its ability to withstand vibrations or shocks. Environmental tests expose the sensor to various conditions, such as temperature extremes, humidity, and corrosive substances. Only sensors that pass these tests receive certification indicating their compliance with IEC 60747-9-2013.
In conclusion, IEC 60747-9-2013 is an international standard that sets the requirements for semiconductor sensors. By specifying sensing principles, performance requirements, and testing procedures, the standard ensures the reliability and accuracy of these sensors in different applications.
Nina She