# Full Scale Input and Output

Sensor & Transduser

Sensor Characteristics

- Sensor Transfer Function

- Full Scale Input and Output

- Akurasi

**Span (Full-Scale Input)**

A dynamic range of stimuli which may be converted by a

**sensor**is called a span or an input full scale (FS). It represents the highest possible input value that can be applied to the**sensor**without causing an unacceptably large inaccuracy. For the**sensor**s with a very broad and nonlinear response characteristic, a dynamic range of the input stimuli is often expressed in decibels, which is a logarithmic measure of ratios of either power or force (voltage). It should be emphasized that decibels do not measure absolute values, but a ratio of values only. A decibel scale represents signal magnitudes by much smaller numbers, which, in many cases, is far more convenient.Being a nonlinear scale, it may represent low-level signals with high resolution while compressing the high-level numbers. In other words, the logarithmic scale for small objects works as a microscope, and for the large objects, it works as a telescope. By definition, decibels are equal to 10 times the log of the ratio of powers:

1 dB = 10 log ( P_{2 } / P_{1}) (8)

In a similar manner, decibels are equal to 20 times the log of the force, current, or voltage:

1 dB = 20 log ( S_{2} / S_{1 }) (9)

**Full-Scale Output**

Full-scale output (FSO) is the algebraic difference between the electrical output signals measured with maximum input stimulus and the lowest input stimulus applied. This must include all deviations from the ideal transfer function. For instance, the FSO output in figure below is represented by SFS.

### Books About Sensor: