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參數(shù)資料
| 型號： | HTS2010SMD |
| 廠商： | HUMIREL |
| 英文描述： | TEMPERATURE AND RELATIVE HUMIDITY SENSOR |
| 中文描述： | 溫度和相對濕度傳感器 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 573K |
| 代理商： | HTS2010SMD |
C
HARACTERISTICS
(CONT)
Humidity sensor
Characteristics
Symbol
Tcc
Min.
Typ.
+ 0.04
+/-1.5
+/-2
5
Max.
Unit.
pF/°C
% RH
% RH
Vac
nA
Temperature coefficient at 55 % RH / 10 to 40°C
Humidity Hysteresis
Deviation to typical curve (see below) (10 % to 90 % RH)
Supply voltage
Leakage current (Vs = 5 volts)
Vs
1
10
1
Characteristics
Symbol
Min.
Typ.
10
3730
Max.
Unit.
k
Nominal resistance @ 25°C
Beta value : B25/100
Temperature measuring range
Nominal Resistance Tolerance*
B value tolerance
Response Time
B
Ta
Rn
B
3600
- 40
3800
100
3
°C
%
%
s
2
3
10
τ
Temperature sensor
Typical response curve of HTS2010SMD in humidity
Typical temperature output
TECHNICAL
DATA
2
Humirel Sensor Device Data / HPC008 Rev E September 2002
205
200
195
190
185
180
175
170
165
160
0
10
20
30
40
50
60
70
80
90
100
Relative Humidity (% RH)
c
Calibration data are traceable to NIST
standards through CETIAT laboratory.
Measurement frequency : 10 kHz
Ta = 25°C
Depending on the needed temperature measurement range and the
associated accuracy, we suggest two methods to access to the NTC
resistance values.
NTC resistance in
at temperature
T
in K
NTC resistance in
at rated temperature in K
Temperature in K
B
value, material-specific constant of the NTC thermistor
Base of natural logarithm (e = 2,71828)
C in pF, RH in %
Polynomial response :
°C
ohm
262960
194110
144790
109030
82923
63591
49204
38279
30029
23773
18959
15207
12280
10000
8178
ohm
6734
5575
4636
3874
3237
2720
2304
1960
1674
1432
1235
1067
927
809
°C
35
40
45
50
55
60
65
70
75
80
85
90
95
100
R NTC standardized
R NTC exponential
ohm
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
The actual characteristic of an NTC thermistor can, however, only be
roughly described by the exponential relation, as the material parame-
ter
B
in reality also depends on temperature. So this approach is only
suitable for describing a restricted range around the rated temperature
or resistance with sufficient accuracy.
2
For practical applications a more precise description of the real
R/T
curve may be required. Either more complicated approaches (e.g the
Steinhart-Hart equation) are used or the resistance/temperature rela-
tion as given in tabulated from. These standardized curves have been
experimentally determined with utmost accuracy ; they are aslo availa-
ble for temperature increments of 1 degree.
°C
ohm
6670
5500
4550
3800
3180
2690
2270
1940
1650
1430
1230
1070
925
810
°C
35
40
45
50
55
60
65
70
75
80
85
90
95
100
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
52000
40500
31000
24500
19300
15400
12350
10000
8140
x
1
*Tighter tolerance available on request
*Tighter tolerance available on request
(Ta = 25°C, measurement frequency @ 10 kHz unless otherwise noted)
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