Ammonit
Ammonit
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State of the art measurement equipment for the wind industry
since 1989, marketed in more than 100 countries

风速计

风速计测量水平方向的风速(速度)。这个参数对任何风点评估来说都是关键的。杯型风速计 是一种普通标准类型的风速计。它们结实而且能抵抗测风塔(杆)和横 木引起的湍流和斜风。根据国际标准(即MEASNET)每个风速计都应该经过单独校验并且备有通过验证的测量报告。一个测风塔上的风速计的数量从2个到6个传感 器不等。绝大多数风速计都可以装备电控加热装置。

In order to pool competences in the field of flow measurement and meteorological measurement technology, Ammonit Measurement GmbH and WIND-consult GmbH founded the Ammonit Wind Tunnel GmbH with headquarter in Bargeshagen near Rostock (Germany). Ammonit Wind Tunnel has been accredited by the German accreditation body (DAkkS) as independent calibration laboratory according to DIN EN ISO / IEC 17025. Ammonit Wind Tunnel is member of the MEASNET group. In its own wind tunnel the company calibrates wind speed sensors according to IEC 61400-12-1 and MEASNET for wind energy assessments.

Studies regarding anemometer behaviour

In order to analyse the accuracy of anemometers and define criterias for anemometers which are suitable for wind measurement, the EU has financed three comprehensive studies in which well-known institutes like DTU (formerly Risø) and DEWI took part. The studies SITEPARIDEN, CLASSCUP and ACCUWIND indicate that the following criterias are crutial for anemometers used in wind measurement:

  • Angular response: anemometer behaviour according to variable flow angle
  • Turbulence behaviour: anemometer reaction on changing velocity
  • Bearing friction: influence of temperature on bearing friction

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IEC Classification of Anemometers

The classification describes the uncertainty of an anemometer considering general influencing parameters like turbulence, air temperature, air density and average flow inclination. See tables below (click on Show / hide table) for the classification of commonly used cup anemometers in wind energy assessments. Please note that the classifications have been performed in different wind tunnels from different institutes.

Classification and Accuracy
According to the IEC 61400-12-1 the Operational Standard Uncertainty can be derived from the classification and the wind speed bin. The operational standard uncertainty describes the maximum deviation of the wind speed measured by the anemometer compared with the real wind speed in m/s, whereas the classification is only a number. The operational standard uncertainty is calculated as follows:

IEC-OperationalStandardUncertainty

where Uj  is the wind speed bin; k the classification.

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风速计 Thies First Class Advanced X

Thies First Class Advanced

订购号:
S11200 / S11200H (heatable)

符合以下檢定 IEC 61400-12-1 Edition 2.0 (2017-03)
Measurement of horizontal wind speed, absolute and relative air presse, inclination, acceleration as well as vibration.
Automatic correction of measurement values. RS485 output (Modbus).

  • 高精準度: Class A = 0.65 (Heating on)
  • 准确数据提供
  • Optimum linearity: r > 0.999 99 (4 … 20 m/s)
  • 对气流变化具高敏感度
  • 测量範围: 0.3 ... 75 m/s
  • 准确度: 0.05 m wind run
  • 溫度範围: -50 ... 80°C
  • Low start up value
  • High survival speed
  • Minimum overspeeding
  • 低维护感谢球轴承
  • 堅固且防水 (seawater-proof)
  • 可加热

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数据表
ClassificationReport

 

 

风速计 Thies First Class Advanced II

Thies First Class Advanced

订购号:
S11101 / S11101H (heatable)

符合以下檢定 IEC 61400-12-1 Edition 2.0 (2017-03)

Extremely low maintenance thanks to low-inertia and ball-bearing cup star with cups made of carbon-fiber-reinforced plastic.

  • 高精準度: Class A = 1.8 (Heating on)
  • 准确数据提供
  • Optimum linearity: r > 0.999 99 (4 … 20 m/s)
  • 对气流变化具高敏感度
  • 测量範围: 0.3 ... 75 m/s
  • 准确度: 0.05 m wind run
  • 溫度範围: -50 ... 80°C
  • Low start up value
  • High survival speed
  • Minimum overspeeding
  • 低维护感谢球轴承
  • 堅固且防水 (seawater-proof)
  • 可加热

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数据表
ClassificationReport

 

 

风速计 Thies First Class Advanced

Thies First Class Advanced

订购号:
S11100 / S11100H

New model Thies First Class Advanced II available
(S11101 / S11101H) with latest IEC classification!

符合以下檢定 IEC 61400-12-1 (2005-12),
MEASNET, CLASSCUP, ISO 17713-1,
ACCUWIND study 测试为市面上最精准的风速记!
Extremely low maintenance thanks to low-inertia and ball-bearing cup star with cups made of carbon-fiber-reinforced plastic.

  • 高精準度, class: S 0.5 / A 0.9 / B 3.0
  • 准确数据提供
  • Optimum linearity: r > 0.999 99 (4 … 20 m/s)
  • 对气流变化具高敏感度
  • 合理的價錢
  • 测量範围: 0.3 ... 75 m/s
  • 准确度: 0.05 m wind run
  • 溫度範围: -50 ... 80°C
  • Low start up value
  • High survival speed
  • Minimum overspeeding
  • 低维护感谢球轴承
  • 堅固且防水(seawater-proof)
  • 可加热

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数据表
ClassificationReport      IEC61400-12-1

 

 

风速计 Vector

Vector L100 First Class

订购号:
S14100 / S14100H

符合 IEC檢定

  • 等級: 1 / A 1.8 / B 4.5
  • 测量範围: 0.2 ... 75 m/s
  • 溫度範圍: -30 ... 70°C
  • 精準度: 0.05 m/s
  • 重量: approx. 0.5 kg
  • 耗电量低
  • 堅固且防水 (seawaterproof)

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数据表

风速计 Thies Compact

Thies Compact

订购号:
S12100H

电压测量型风速传感器
低电频输出信号
Low maintenance thanks to ball bearing cup star

  • 量程: 0,5 .... 50 m/s,
  • 分辨率: < 0.1 m/s
  • 温度范围: -30 ... +70 °C
  • Low maintenance due to ball bearing cup star
  • 可加热

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数据表

风速计 Windsensor (RISØ) P2546A-OPR

Anemometer RISO

订购号码:
S16100C

符合IEC 61400-12-1:2005分级
非常可靠的风速计

  • 分级: 1 / A 1.32 / B 3.71
  • 量程: 0 ... 70 m/s
  • 分辨率:
  • 温度范围: -15 ... +60°C
  • 启动速度: < 0,4 m/s
  • 不可加热

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数据表
ClassificationSummary

风速计 Vaisala WAA 252

Vaisala WAA 252

订购号:
S15100H

耐冰冻全天候传感器
可加热风杯!
光电传感器
应用于极度严寒的气候条件中

  • 分级: 1
  • 量程: 0.4 ... 75 m/s
  • 温度范围: -55 ... +55°C
  • 分辨率:
  • 启动速度: < 0,5 m/s
  • 可加热

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数据表

风速计 Propeller Young/Gill MODEL 27106T

Young Propeller Anemometer MODEL 27106T

订购号:
S17100

測量平形及垂直风速
Not classified according to MEASNET and IEC

    • 测量範围 1 : axial flow 0 ... 40 m/s (90 mph)
    • 测量範围 2: all angles 0 ... 35 m/s (80 mph)
    • 溫度範围: -50 ... 50°C
    • 距離对比: 2.1 m
    • 输出讯号: 1800 rpm (± 500 mV) = 9.0 m/s (20.1 mph)

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      数据表

      Further available anemometers

       

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