bathroom scale mechanical
How to choose the bathroom scales?
Who should or should try to monitor their figures, have in his home bathroom scales mechanical. Installed this fact: after several days of floor scales, body weight decreased its owner has an average of half a kilogram without diet and exercise.
Scales are designed primarily to measure a person's weight, but some models have an additional function for weighing large heavy objects in everyday life. Typically, scales are allowed to weigh loads of up to 160 kg.
Current models of bathroom scales are equipped with built-in electronics, not inferior in terms of personal computers. These scales determine not only your weight, but the ratio of the quantity of water, fat and muscle mass and bone tissue in the body. Bathroom scales can:
1. Remember the dynamics of weight change over time.
2. To calculate the optimal weight using the BMI (Body Mass Index) Factor in the light of growth, sex, age and constitution of the organism.
3. Identify the specific rights of several potential users of the weights.
4. Giving personal advice on diet and physical training.
Mechanical or electronic scales better to choose?
When buying floor scales in the first place you need to determine their type: mechanical scales or electronic scales.
Bathroom scales mechanical
In mechanical scales main element is the measuring spring. Getting up on the scale we are working on this spring, she stretched under our weight, and in turn rotates the arrow along the scale of measurement scales, or the very scale of measurement is proportional to the generated force of gravity. Setting the "zero" in the balance by a special wheel, located at the bottom of the scale. Price division in mechanical scales usually 1 kg, 0.5 kg less.
In operation, mechanical scales less troublesome than electronic. They do not require replacement power supplies. Maximum load in the mechanical balance is quite high.
For its value, mechanical scales on the order of cheaper electronic scales, but they are as accurate measurements and do not have additional functions.
Electronic scales
In contrast, mechanical scales, electronic scales weighing result is displayed not on the measuring scale with the figures, and displayed using a digital display. Indications of electronic scales also have a price division. Discontinuity readings in different models of scale can vary from 0.1 to 0.5 kg. The principle of measurement of weight in electronic scales can be different, depending on whether any of these metal parts and what it is.
The earliest electronic scales did not differ according to the principle of mechanical weighing scales. They had a same measuring spring, only weighing results displayed on the digital display. More sophisticated electronic scales have in their construction of two metal disk, forming something like an electric capacitor. At the slightest impact on the scale plates move apart, the electric charge between the plates changed, and this in turn affects the weight of the evidence. The use of mechanical components is minimized, which increases reliability and durability of weights.
Finally, in the most advanced models, the weights used by the sensor voltages. The sensor voltage is a thin metal wire through which electrical current is passed. Under the influence of weight, there is tension voltage sensor, an electrical signal that passes through the wire, varies accordingly changed the testimony of the measured weight on the digital scoreboard. In balance with this design, mechanical elements are completely absent, all measurements are made only by means of electronics.
To use electronic scales are usually used batteries with a voltage of 1,5 V or 9 V. However, some models of weights run from solar panels or energy accumulated from the mechanical impact on the scales. Virtually all electronic scales automatically switched on and off. Setting the "zero" in the electronic balance is carried out automatically when they are switched on or using a special button on the case. With intellectual stuffing, electronic scales have many additional functions.
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