Transcript Diapositiva 1

SENSORS
South Straight High
Speed Circuit
Units
Sensors
Dynamic
Platform A
North Straight High
Speed Circuit
Wet Handling
Track
ºC
Temperature
Ambient
X
X
X
X
X
X
ºC
Asphalt
Temperature
ºC
Wet Asphalt
Temperature
%
Humidity Relative
X
X
m/seg
Wind Speed
X
X
X
X
º
Wind Direction
X
X
X
X
Hpa
Pressure
X
ltr
Rain
X
W/m²
Solar Radiation
X
X
X
Data collection: Every 10 minutes, 1 hour and each day.
SENSORS SPECIFICATIONS
THE 108 TEMPERATURE SENSOR
The 108 temperature probe uses a thermistor to measure temperature.
Sensor:
BetaTherm 100K6A Thermistor
Temperature Measurement
Range:
-5ºC to +95ºC
Survival Temperature
Range:
-55ºC to +l00ºC
Thermistor Interchangeability
Error*:
<±0.16ºC or -5 to +95ºC
Edlog Polynomial
Linearization Error:
<±t0.5ºC over -7 to +90ºC
CRBasic Therm108
Linearisation error:
<±t0.01ºC over -5 to +95ºC
Bridge resistor
Error (worst case)*:
<±0.49ºC over -5 to +95ºC
Time Constant in Air:
<80s to 63% in air at 1 m/s
SENSORS SPECIFICATIONS
LP02 PYRANOMETER SENSOR
Response time for 95% response:
18 s
Zero offset
(response fo 200 W/m² net thermal radiation):
< 15 W/m²
Zero offset
(response to 5 k/h change in ambient temperature):
<4 W/m²
Non-stability:
< 1% change per year
Non-Linearity:
< +/- 2.5%
Directional response for beam radiation:
Within +/-25 W/m²
Spectral selectivity:
+/- 5% (305 to 2000 nm)
Temperature response (within an interval of 50ºC):
Within 6% (-10 to +40ºC)
Sensitivity:
10-40 µV/ Wm-²
Expected voltage output:
0.1 to + 50 mV in natural sunlight
Operating temperature:
-40 to +80ºC
Sensor resistance:
Between 40 and 60 Ohms
Range:
0-2000 W/m²
Expected accuracy for daily sums:
+/- 10%
SENSORS SPECIFICATIONS
HMP45C Temperature and RH Probe
Sensor:
1000 O PRT, IEC 751 I/3 Class B
Temperature Measurement
Range:
-40ºC to +60ºC
Temperature Output
Signal range:
0.008 to 1.0 V
Temperature
Accuracy:
±0.4ºC
Relative Humidity Sensor:
HUMICAP@ 180
Relative Humidity Measurement
Range:
0 to 100% non-condensing
RH Output Signal Range:
0.008 to 1 VDC
Accuracy at 20ºC:
±2% RH (0 to 90% Relative Humidity)
±3% RH (90 to 100% Relative Humidity)
Temperature Dependence of
Relative Humidity Measurement: ±0.05% RH/ºC
Typical Long Term Stability:
Better than 1% RH per year
Response Time
(at 20ºC,90% response):
15 seconds with membrane filter
SENSORS SPECIFICATIONS
C5100 Barometric Pressure Sensor
Performance for "Standard" Range Option
Measurement Range:
600 mb to I100 mb (hPa)
Operating Temperature Range:
-40ºC to +60ºC (-40ºF to +140ºF)
Storage Temperature Range :
-60ºC to +120ºC (-76ºF to +248ºF)
Proof Pressure:
1500 mb
Burst Pressure:
2000 mb
Humidity Range:
non-condensing (up to 95% RH)
Media Compatibility:
non-conosive, non-condensing air or gas
Resolution:
0.01mb
Total Accuracy:
±0.5 mb @20ºC, ±1.0 mb @0ºC to +40ºC
±1.5 mb @ -20ºC to +50ºC, ±2.0 mb @ -40ºC to +60ºC
Linearity:
±0.4 mb
Hysteresis:
±0.05 mb
Repeatabibity:
±0.03 mb
Long-term Stability:
±0.1 mb per year
SENSORS SPECIFICATIONS
MODEL 05103-5 WIND MONITOR
WIND SPEED SPECIFICATIONS
WIND DIRECTIUN SPECIFICATION SUMMARY
Range:
0 to 100m/d (224mph)
Range:
360º mechanical, 355º electrical (5º open)
Sensor:
18cm diameter 4-blade helicoid
Sensor:
Balanced vane, 38 cm (15 in) turning radius.
Pitch:
29.4 cm air passage per revolution
Damping
Ratio:
0.3
Delay
Distance:
1.3 m (4.3 ft) for 50% recovery
Threshold
Sensitivity:
1.1 m/s (2.5 mph) at 10º displacement
Distance
Constant:
Threshold
Sensitivity:
Transducer:
Transducer
Output:
Output
Frequency:
2.7 m (8.9 ft.) for 63% recovery
1.0 m/s (2.2 mph)
Centrally mounted stationary coil,
2K Ohm nominal DC resistance
AC sine wave signal induced by rotating
magnet on propeller shaft.
80 mV p-p at 100 rpm. 8.0 V p-p at 10,000rpm.
3 cycles per propeller revolution
(0.098 m/s per Hz)
Damped
Natural
Wavelength: 7.4 m (24.3 ft)
Undamped
Natural
Wavelength: 7.2 m (23.6 ft)
Transducer: Precision conductive plastic potentiometer,
10K ohm resistance (±20%),
0.25% linearity, life expectancy 50
million revolutions, rated 1 watt at
40ºC, 0 watts at 125ºC
SENSORS SPECIFICATIONS
ARG100 RAINGAUGE
The ARGI00 is a well-designed tipping bucket raingauge which combines durable construction with very reasonable
cost. The gauge offers less resistance to airflow than most previous designs, which helps to reduce the sampling
errors that inevitably occur during wind-driven rain. The gauge is manufactured for Campbell Scientific by
environmental Measurements Ltd. (under licence from the Institute of Hydrology), and will provide many
years of reliable operation when carefully sited and installed. The ARGl00 raingauge is constructed from UVResistant, vacuum-moulded plastic and consists of a base and an upper collecting funnel.
The base splits into two parts, the inner section supporting the tipping-bucket mechanism and the outer providing
protection and allowing the unit to be bolted firmly to a suitable mounting plinth or concrete slab.
The tipping bucket arrangement is similar to most other gauges of this type; precipitation is collected by the funnel
and is passed to one of the two buckets situated at either end of a short balance an.
The balance ann tips when the first bucket is full, emptying this bucket and positioning the second under the funnel.
The tipping process repeats indefinilety as long as rain continues to fall, with each tip corresponding to a fixed
quantity of rainfall.
At each tip, the moving balance arm forces a magnet to pass a reed switch, causing contact to be made for a few
milliseconds. A two-core cable is used to connect the gauge to the datalogger where the switch closures are
counted.
The ARGl00 is adjusted at manufacture to tip once for each 0.2mm of rain (a
sensitivity of 0.25mm/tip is optional). rating to simulate.