Electronic kitchen scales are an indispensable tool in modern kitchens. Their weighing accuracy is directly related to the success or failure of baking, ingredients, dietary control and other links. Although the nominal accuracy of most electronic kitchen scales on the market can reach 1 gram or even 0.1 gram, in actual use, fluctuations and errors in weighing data are still common.

Sensor type and quality
The core component of electronic kitchen scales is the load cell. At present, mainstream products mostly use strain gauge sensors. This type of sensor is very sensitive to weight changes and can convert tiny forces into electrical signals. However, the material selection, manufacturing process and packaging quality of the sensor directly determine its sensitivity, linearity and long-term stability.
High-quality sensors have stronger anti-interference ability and temperature compensation function, which can maintain the consistency of weighing results. Low-end sensors may have linear errors, hysteresis errors and creep problems, resulting in inconsistent repeated weighing results.

Structural design and mechanical stability
The scale structure has a significant impact on weighing accuracy. The stability of the platform, the symmetry of the support structure and the overall rigidity will determine whether the sensor can work under ideal conditions. If the platform is uneven or the bracket is loose, the weighing pressure will not be evenly transmitted to the sensor, resulting in reading deviation.
In addition, the height adjustment function and anti-slip material of the scale foot will also affect the overall placement stability. A stable support structure can effectively avoid errors caused by slight shaking or tilting during weighing.

Environmental conditions for use
External environmental factors such as temperature, humidity and air pressure have a significant impact on the sensor system of the electronic scale. Sensors are usually sensitive to temperature changes. High temperatures may cause changes in sensor resistance and affect the stability of electrical signal output. Some high-end electronic kitchen scales have built-in temperature compensation circuits, which can reduce the errors caused by temperature differences to a certain extent.
Excessive humidity may cause the circuit board to absorb moisture, causing insulation degradation or short circuit risks, thereby affecting accuracy. In plateaus or confined spaces, changes in air pressure will also cause slight deformation of the scale body cavity, affecting weighing performance.

Power supply stability
Most electronic kitchen scales are powered by button batteries or AAA batteries, and some high-end products are equipped with lithium batteries. Unstable voltage or insufficient power will cause abnormal circuit operation and affect the linear output of the signal processing circuit. Under low voltage conditions, data transmission between the display and the sensor may be delayed or inaccurate.
A stable power supply can not only improve the response speed of the equipment, but also ensure that the accuracy of each weighing is maintained within the normal range. It is recommended that users replace batteries regularly or use the charging method recommended by the original manufacturer to avoid using inferior batteries.

Usage and human error
The user's operation method is also an important factor affecting the weighing accuracy. If the food is not completely centered during use, it may cause uneven force, which in turn causes errors. Tilt the scale or adhere to moisture and oil stains on the surface of the scale will also interfere with the weighing results.
When weighing the same object repeatedly, if the user does not perform the peeling operation first, or forgets to reset the zero point, it will also cause inconsistent readings. Correct operating habits and regular calibration are the key to ensuring the reliability of weighing data.