The static characteristics of a sensor are important parameters for evaluating its performance, reflecting its behavior under static conditions. The following is an introduction to the static characteristics of sensors:
Sensitivity
Sensitivity is the ratio between the output signal and the input signal of a sensor. It reflects how responsive the sensor is to the input signal. The higher the sensitivity, the more sensitive the sensor is to the input signal. Sensitivity is usually expressed as a dimensionless ratio, such as mV/V or mA/V.
Linearity
Linearity refers to the linear relationship between the output signal and the input signal of a sensor. Ideally, the sensor's output signal should have a linear relationship with the input signal. The better the linearity, the smaller the measurement error of the sensor. Linearity is usually expressed as a percentage, such as 0.1%, 0.5%, etc.
Measuring Range
Measurement range refers to the maximum and minimum values of the input signal that a sensor can measure. A larger measurement range means a wider range of applications for the sensor. Measurement range is usually expressed in specific numerical values, such as 0-10V or 0-100mA.
Resolution
Resolution refers to the smallest change in input signal that a sensor can distinguish. Higher resolution means higher measurement accuracy. Resolution is usually expressed as a specific numerical value, such as 1mV or 0.1mA.
Zero Drift
Zero-point drift refers to the change in the sensor's output signal when the input signal is zero. Zero-point drift can lead to measurement errors and affect the sensor's measurement accuracy. Zero-point drift is usually expressed in specific numerical values, such as ±1mV or ±0.1mA.
Span drift
Range drift refers to the difference between the change in the sensor's output signal and the expected change when the input signal changes. Range drift leads to measurement errors and affects the sensor's measurement accuracy. Range drift is usually expressed as a percentage, such as ±0.1% or ±0.5%.
Stability
Stability refers to the degree of change in the performance parameters of a sensor during long-term use. The better the stability, the more reliable the sensor's performance. Stability is usually expressed as a percentage, such as ±0.1%/year, ±0.5%/year, etc.
Temperature Coefficient
The temperature coefficient refers to the degree to which a sensor's performance parameters change with temperature. The smaller the temperature coefficient, the less the sensor's measurement accuracy is affected by temperature. The temperature coefficient is usually expressed as a percentage, such as ±0.01%/℃, ±0.1%/℃, etc.
Response Time
Response time refers to the time required for a sensor to recover from a change in the input signal to a stable output signal. A shorter response time indicates better dynamic performance of the sensor. Response time is usually expressed as a specific numerical value, such as 1ms or 10ms.
Anti-interference ability
Interference immunity refers to the degree to which a sensor's performance parameters change when subjected to external interference. The stronger the interference immunity, the higher the sensor's measurement accuracy. Interference immunity is usually expressed as specific numerical values, such as ±1% or ±5%.
Repeatability
Repeatability refers to the consistency of measurement results between multiple measurements taken by a sensor under the same input signal. The better the repeatability, the higher the measurement accuracy of the sensor. Repeatability is usually expressed as a percentage, such as ±0.1%, ±0.5%, etc.
Accuracy
Accuracy refers to the difference between a sensor's measurement result and the true value. Higher accuracy means the sensor's measurement result is closer to the true value. Accuracy is usually expressed as a percentage, such as ±0.1% or ±0.5%.
Span Ratio
The range ratio refers to the ratio of the maximum value to the minimum value of a sensor's measurement range. The larger the range ratio, the wider the sensor's measurement range. The range ratio is usually expressed as a dimensionless ratio, such as 10:1, 100:1, etc.
Load Characteristics
Load characteristics refer to the performance of a sensor under different load conditions. Better load characteristics indicate more stable performance under varying load conditions. Load characteristics are typically expressed numerically, such as ±1% or ±5%.
Power Supply Characteristics
Power supply characteristics refer to the performance of a sensor under different power supply conditions. Better power supply characteristics mean more stable sensor performance under varying power conditions. Power supply characteristics are usually expressed as specific numerical values, such as ±1% or ±5%.
Environmental Characteristics
Environmental characteristics refer to the performance of a sensor under different environmental conditions. Better environmental characteristics mean more stable sensor performance under varying conditions. Environmental characteristics are typically expressed numerically, such as ±1% or ±5%.
Installation Characteristics
Installation characteristics refer to the sensor's performance under different installation conditions. Better installation characteristics mean more stable sensor performance under varying conditions. Installation characteristics are typically expressed numerically, such as ±1% or ±5%.
