Here you can find a list of all supported measurement types and an example of the standard useage for such measurements.
Tabelle 18.1. List of measurement types
Typ | Class | Standardunit | Description |
---|---|---|---|
Acceleration | Zend_Measure_Acceleration | Meter per square second | m/s²
|
Zend_Measure_Acceleration covers the
physical factor of acceleration.
|
Angle | Zend_Measure_Angle | Radiant | rad
|
Zend_Measure_Angle covers angular dimensions. |
Area | Zend_Measure_Area | Square meter | m²
|
Zend_Measure_Area covers square measures. |
Binaray | Zend_Measure_Binary | Byte | b
|
Zend_Measure_Binary covers binary convertions. |
Capacitance | Zend_Measure_Capacitance | Farad | F
|
Zend_Measure_Capacitance covers physical factor of capacitance.
|
Cooking volumes | Zend_Measure_Cooking_Volume | Cubic meter | m³
|
Zend_Measure_Cooking_Volume covers volumes
which are used for cooking or written in cookbooks.
|
Cooking weights | Zend_Measure_Cooking_Weight | Gram | g
|
Zend_Measure_Cooking_Weight covers the weights
which are used for cooking or written in cookbooks.
|
Current | Zend_Measure_Current | Ampere | A
|
Zend_Measure_Current covers the physical factor of current.
|
Density | Zend_Measure_Density | Kilogram per cubic meter | kg/m³
|
Zend_Measure_Density covers the physical factor of density.
|
Energy | Zend_Measure_Energy | Joule | J
|
Zend_Measure_Energy covers the physical factor of energy.
|
Force | Zend_Measure_Force | Newton | N
|
Zend_Measure_Force covers the physical factor of force.
|
Flow (mass) | Zend_Measure_Flow_Mass | Kilogram per second | kg/s
|
Zend_Measure_Flow_Mass covers the physical factor of flow rate.
The weight of the flowing mass is used as reference point within this class.
|
Flow (mole) | Zend_Measure_Flow_Mole | Mole per second | mol/s
|
Zend_Measure_Flow_Mole covers the physical factor of flow rate.
The density of the flowing mass is used as reference point within this class.
|
Flow (volume) | Zend_Measure_Flow_Volume | Cubic meter per second | m³/s
|
Zend_Measure_Flow_Volume covers the physical factor of flow rate.
The volume of the flowing mass is used as reference point within this class.
|
Frequency | Zend_Measure_Frequency | Hertz | Hz
|
Zend_Measure_Frequency covers the physical factor of frequency.
|
Illumination | Zend_Measure_Illumination | Lux | lx
|
Zend_Measure_Illumination covers the physical factor of light density.
|
Length | Zend_Measure_Length | Meter | m
|
Zend_Measure_Length covers the physical factor of length.
|
Lightness | Zend_Measure_Lightness | Candela per square meter | cd/m²
|
Zend_Measure_Ligntness covers the physical factor of light energy.
|
Number | Zend_Measure_Number | Decimal | (10)
|
Zend_Measure_Number converts between number formats.
|
Power | Zend_Measure_Power | Watt | W
|
Zend_Measure_Power covers the physical factor of power.
|
Pressure | Zend_Measure_Pressure | Newton per square meter | N/m²
|
Zend_Measure_Pressure covers the physical factor of pressure.
|
Speed | Zend_Measure_Speed | Meter per second | m/s
|
Zend_Measure_Speed covers the physical factor of speed.
|
Temperature | Zend_Measure_Temperature | Kelvin | K
|
Zend_Measure_Temperature covers the physical factor of temperature.
|
Torque | Zend_Measure_Torque | Newton meter | Nm
|
Zend_Measure_Torque covers the physical factor of torque.
|
Viscosity (dynamic) | Zend_Measure_Viscosity_Dynamic | Kilogram per meter second | kg/ms
|
Zend_Measure_Viscosity_Dynamic covers the physical factor of viscosity.
The weight of the fluid is used as reference point within this class.
|
Viscosity (kinematic) | Zend_Measure_Viscosity_Kinematic | Square meter per second | m²/s
|
Zend_Measure_Viscosity_Kinematic covers the physical factor of viscosity.
The distance of the flown fluid is used as reference point within this class.
|
Volume | Zend_Measure_Volume | Cubic meter | m³
|
Zend_Measure_Volume covers the physical factor of volume (content).
|
Weight | Zend_Measure_Weight | Kilogram | kg
|
Zend_Measure_Weight covers the physical factor of weight.
|
Hints for Zend_Measure_Binary :
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Binary conventions |
---|---|
The terms kilo-, mega-, giga and so on... have to be seen, in the normal language use, for 1000 or 10³. In the binary format for computers the terms kilo-, mega-, giga- and so on have to be seen for a convertion factor of 1024 instead of 1000. To preclude confusions a few years ago the notation BI was introduced. Instead of kilobyte, kibibyte for kilo-binary-byte should be used. In the class BINARY both notations can be found. KILOBYTE = 1024 - binary conputer conversion KIBIBYTE = 1024 - new notation KILO_BINARY_BYTE = 1024 - new notation, long format KILOBYTE_SI = 1000 - SI notation for kilo (1000) DVDs for example are marked with the SI-notation, but almost all harddisks are marked in computer binary notation. |
Hints for Zend_Measure_Number :
The best known number format is the decimal system.
Additionaly this class covers the octal system, the hexadecimal system, the binary system, the roman number format and a few not so familiar systems.
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Be aware |
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Be aware that only the decimal part of numbers is handled. The fractional part will be stripped. |
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Roman numbers |
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For the roman numbersystem digits greater 4000 are supported. In reality these digits are shown with a crossbeam on top of the digit. As the crossbeam can not be shown within the computer, an underline has to be used instead of it. <?php require_once 'Zend/Measure/Number.php'; $great = '_X'; $locale = new Zend_Locale('en'); $unit = new Zend_Measure($great,Zend_Measure_Number::ROMAN, $locale); // convert to the decimal system echo $unit->convertTo(Zend_Measure_Number::DECIMAL); ?> |