How to use the 9110D vibration calibrator to calibrate vibration sensors (such as Bentley 330400)

To calibrate a vibration sensor using the 9110D vibration calibrator, it is first necessary to connect the calibrator to the vibration sensor. Then, the verifier will generate a standard vibration signal, which is converted into an electrical signal by the sensor. The verifier measures the electrical signal output by the sensor and compares it with a standard signal, thereby determining whether the sensor’s output is accurate. To determine the compliance of vibration sensors, it can be evaluated using the following parameters: 1. Linearity: Linearity refers to the linear relationship between the sensor’s output and its input. Higher linearity means that the sensor can accurately convert vibration signals. Generally, linearity should be maintained within a low percentage range. 2. Error: The error of a sensor refers to the difference between its output and the true value. A qualified sensor should have low error. Generally, an error within a few percent is considered acceptable. The specific error range may vary depending on the application area and accuracy requirements. In addition, the following factors can also be considered: 3. Frequency response: The sensor should have the ability to accurately measure vibrations across different frequency ranges. 4. Stability: The sensor should exhibit good long-term stability, meaning that its output remains relatively constant over a period of time. 5. Repeatability: The sensor should have high repeatability, meaning that when multiple measurements are taken under the same conditions, the output values should be similar to each other. It is worth noting that the parameters mentioned above are only for reference; specific requirements may vary depending on different industries and applications. In practical use, relevant standards and specifications can be referred to to determine the compliance of sensors. .