ACR Electronics SmartReader Plus Uživatelský manuál stáhnout pdf (Strana 105)

Equations

2005 ACR Systems Inc.

New Unit

Enter the Unit Category.

Enter the Subunit. This will be used as the main Subunit.

Enter the Symbol for the Subunit.

7.2.3 Equation Type

In the third step of the wizard, you select what type of equation to create. If you select either a

Linear, Polynomial, or Thermistor equation,

TrendReader Standard 2

will create an equation

for you based on data that you enter. Select Empty if you want to use you own formulas to

write an equation.

A linear equation, as the name implies, represents a straight line where the output is an offset

added to a multiple of the input, typically shown as

Y=m*X + b

. The most common use of a

linear equation is with a linear output transducer that measures a phenomenon (for example,

wind speed, power, or acidity) and produces an electrical signal in proportion to that

phenomenon.

A polynomial equation, represents a line that is the sum of coefficients that are multiplied by

powers of the input, typically shown as

Y=a0 + a1*X +a2*X^2 + a3*X^3 + ...

. The order of the

polynomial represents the highest order of power.

1 2 ... 100 101 102 103 104 105 106 107 108 109 110 ... 197 198

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ACR Electronics SmartReader Plus Uživatelský manuál Strana 105