Hot wire anemometer



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English: The head of a combined air velocity and air temperature sensor, type CAFS-220. The air velocity is measured by means of a hot wire (in the circular hole). Dimensions of the visible part of the green PCB: width 5.5 mm, length 9.5 mm. The sensor has a 5 meter long cable (not visible in the picture) for a connection to the Airflow Temperature Monitor, type Cambridge AccuSense ATM-24.

Due to the small dimensions and to the flexible cable connection, the sensor is suitable for example for air flow measurements inside closed electronics housings.

Measuring ranges: air velocity 0.15 m/s to 15 m/s, temperature 0 °C to 100 °C.
Deutsch: Die Spitze eines kombinierten Luftgeschwindigkeit- und Lufttemperatursensors, Typ CAFS-220. Die Luftgeschwindigkeit wird mit einem Hitzedrahtsensor gemessen (in der kreisrunden Öffnung). Abmessungen des sichtbaren Teiles der grünen Leiterplatte: Breite 5.5 mm, Länge 9.5 mm. Der Sensor besitzt ein 5 Meter langes Kabel (nicht im Bild sichtbar) zum Anschluss an Airflow Temperature Monitor, Typ Cambridge AccuSense ATM-24.

Wegen seiner kleinen Abmessungen und der flexiblen Kabelverbindung kann der Sensor z.B. für die Messung von Luftgeschwindigkeiten in geschlossenen Elektronikgeräten verwendet werden.

Messbereiche: Luftgeschwindigkeit: 0.15 m/s bis 15 m/s, Lufttemperatur 0°C bis 100°C.
Date 22 April 2009(2009-04-22)
Source Own work
Author Harke


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EXIF data:
File name hot_wire_anemometer.jpg
Size, bytes 592406
Mime type image/jpeg
Image input equipment manufacturer NIKON CORPORATION
Image input equipment model NIKON D60
Orientation of image 1
Image resolution in width direction 300/1
Image resolution in height direction 300/1
Unit of X and Y resolution 2
Exposure time 5/30
F number 16/1
Exposure program 3
ISO speed rating 100
Exif version 0220
Lens focal length 35/1
Date and time original image was generated 2009:04:22 18:08:25
Date and time image was made digital data 2009:04:22 18:08:25
Meaning of each component 
Exposure bias 6/6
Maximum lens aperture 47/10
Metering mode 2
User comments ASCII
Supported Flashpix version 0100
Color space information 1
Exif image width 1298
Exif image length 974
Sensing method 2
Scene type 
CFA pattern 
White balance 1
Digital zoom ratio 1/1
Focal length in 35 mm film 52
Contrast 2
Software used Capture NX 2.0.0 W
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