Analysis of the causes of common errors in weighing sensors

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Analysis of the causes of common errors in weighing sensors [Copy link]

A weighing sensor is a device that converts mass signals into measurable electrical signal outputs. It is inevitable that weighing sensors will produce errors during use, so what are the causes of errors in our daily lives? Here is an analysis of the causes of common errors in weighing sensors:

1. Characteristic error: caused by the device itself, including DC drift value, incorrect slope or nonlinear slope. After all, there will be a gap between the ideal transfer function characteristics of the device and the actual characteristics.

2. Weighing sensor application error: also an error caused by operation, including errors in probe placement, incorrect insulation between the probe and the measurement location, errors in the purification process of air or other gases, errors in the wrong placement of the transmitter, and other errors caused by various operational errors. 3. Dynamic error: Sensors suitable for static conditions will have strong damping, so they will respond slowly to changes in input parameters, and may even take several seconds to respond to a step change in temperature. Some weighing sensors with delay characteristics will produce dynamic errors when responding to rapid changes. Response time, amplitude distortion and phase distortion can all lead to dynamic errors. 4. Insertion error: This is the error caused by changing the measurement parameters when a sensor is inserted into the system. Using a transmitter that is too large for the system, the dynamic characteristics of the system are too slow, and the system is self-heated with too much heat energy, etc., can all lead to insertion errors. 5. Environmental error: The use of weighing sensors will also be affected by environmental factors such as temperature, swing, vibration, altitude, and volatilization of chemicals, all of which are very likely to cause environmental problems.

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A weighing sensor is a device that converts mass signals into measurable electrical signal outputs. It is inevitable that weighing sensors will produce errors during use. So what are the causes of errors in our daily lives?