Devices in which for measurements the scale is used have a large number of divisions, not all from which are numbered. Determination of the price of division of a scale is necessary for increase in accuracy of measurements if the measured size is between the numbered divisions.
It is required to you
- - device with a scale;
- - calculator;
- - thin subject for counting of divisions (needle).
Instruction
1. Take the device with a scale which price of division needs to be determined. Attentively examine it, it has to divide evenly the field for measurements and not to be damaged. If each division of a scale is numbered, then to find the division price, take two next numerical values and from bigger subtract smaller.
2. For example, if everyone risk (hyphen) on a scale is numbered by numbers 0, 100, 200, 300, 400. That take any two nearby the standing numbers, approach 200 and 300, and from bigger subtract smaller 300-200=100. It will also be the price of division of such scale. Pay attention in what units sizes are measured, the division price will have the same dimension also.
3. If at the device between the main numbered divisions is smaller, not numbered, notice two next numerical values. After that count the number of divisions which are concluded between these numerical values. In case a scale small, use a needle. Surely consider divisions between risks of a scale, but not risks (hyphens) as they will be one more.
4. For calculation of the price of division, take two noticed earlier numerical values, take away smaller from bigger value. The received result divide into quantity early podchitanny divisions which were between numerical values on a scale, the received result and will be the price of division of this scale.
5. For example, if the scale consists of numerical divisions 0, 20, 40, 60, 80, 100, take two next numerical values. For this purpose numbers 60 and 80 will approach. Carefully count between them the number of divisions. Let's assume that between them 10 divisions. To count the division price from bigger number subtract smaller 80-60=20. Divide the received result into the number of divisions 20/10=2. If the device measures, for example, tension in volts, then its price of division is equal to 2 V.