Electronic bathroom scales and mechanical bathroom scales, which is more accurate?

Let’s start with the conclusion that electronic scales are more accurate. Electronic scales are easier to read and more accurate, making them more worth buying.

The difference between electronic bathroom scales and mechanical bathroom scales working principle

The electronic scale principle is that when the object is placed on the scale, pressure is applied to the sensor, which undergoes elastic deformation, resulting in a change in impedance, causing the excitation voltage to change and output an analog. This signal is amplified by an amplifier circuit and output to an analog-to-digital converter. It is converted into a digital signal for easy processing and output to the MCU for computing the result for the display.

The principle of the human mechanical scale is that when a person stands on the scale, gravity is converted into the potential energy of the spring, which stretches the pointer to rotate. When the spring deformation stops, the pointer stops rotating, and the weight reading is displayed.

Advantages and disadvantages of electronic bathroom scales

Advantages

1. higher accuracy, generally 50g to 100g. 2.
2. LCD is more convenient to read
3. long service life

Disadvantages

1. Need to use batteries
2. complicated to use for the first time

Advantages and disadvantages of mechanical bathroom scales

Advantages

1. simple structure, cheap
2. no batteries are needed, energy saving and environmental protection

Disadvantages

1. You need to adjust the zero every time you use it, and easy to produce errors
2. short service life, no more than 3 years

How to use the electronic bathroom scale

1. when weighing, please put the scale on a hard and flat ground
2. there is a toggle switch at the bottom of the scale, the unit of measurement can choose kilograms or pounds. Kilograms will display “kg”; pounds will display “lb”. 3.
3. To avoid affecting the weighing accuracy, please do not place the scale on carpet or soft ground. Stand evenly on the scale surface and keep your balance.
4. When the scale is stable, the LCD will show the weight measurement value, and the current weight value will appear when the screen value is stable.
5. When “ERR” is displayed, it means overload, i.e. the weight has exceeded 150kg. When the overload is over, the scale can resume normal operation, and “ERR” will follow.