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參數(shù)資料
| 型號： | MZ12GW |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | 10 kPa Uncompensated Silicon Pressure Sensors |
| 中文描述： | 10千帕未補償硅壓力傳感器 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大小： | 330K |
| 代理商： | MZ12GW |
MPVZ12
Sensors
4
Freescale Semiconductor
TEMPERATURE COMPENSATION
Figure 2
shows the typical output characteristics of the
MPVZ12 series over temperature.
Because this strain gauge is an integral part of the silicon
diaphragm, there are no temperature effects due to
differences in the thermal expansion of the strain gauge and
the diaphragm, as are often encountered in bonded strain
gauge pressure sensors. However, the properties of the
strain gauge itself are temperature dependent, requiring that
the device be temperature compensated if it is to be used
over an extensive temperature range.
Temperature compensation and offset calibration can be
achieved rather simply with additional resistive components,
or by designing your system using the MPX2010D series
sensor.
Several approaches to external temperature
compensation over both –40 to +125
°
C and 0 to +80
°
C
ranges are presented in Applications Note AN840.
LINEARITY
Linearity refers to how well a transducer's output follows
the equation: V
out
= V
off
+ sensitivity x P over the operating
pressure range (
Figure 3
). There are two basic methods for
calculating nonlinearity: (1) end point straight line fit or (2) a
least squares best line fit. While a least squares fit gives the
“best case” linearity error (lower numerical value), the
calculations required are burdensome.
Conversely, an end point fit will give the “worst case” error
(often more desirable in error budget calculations) and the
calculations are more straightforward for the user.
Freescale’s specified pressure sensor linearities are based
on the end point straight line method measured at the
midrange pressure.
Figure 2. Output versus Pressure Differential
Figure 3. Linearity Specification Comparison
Pressure Differential
O
80
70
60
50
40
30
20
10
0
0
0.3
2.0
0.6
4.0
0.9
6.0
1.2
8.0
10
1.5
PSI
kPa
Span
Range
(Typ)
Offset
(Typ)
V
S
= 3 V
DC
P1 > P2
-40
°
C
+25
°
C
+125
°
C
Linearity
Actual
Theoretical
Offset
(V
off
)
Max
P
OP
O
Pressure (kPA)
70
60
50
40
30
20
10
00
Span
(V
FSS
)
80
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MZ-12HG | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:MINIATURE RELAY 1 POLE-1 to 2 A (FOR SIGNAL SWITCHING) |
| MZ-12HG-K | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:MINIATURE RELAY 1 POLE-1 to 2 A (FOR SIGNAL SWITCHING) |
| MZ-12HG-K-U | 功能描述:低信號繼電器 - PCB SIGNAL RoHS:否 制造商:NEC 觸點形式:2 Form C (DPDT-BM) 觸點電流額定值: 線圈電壓:5 V 最大開關(guān)電流:1 A 線圈電流:1 A 線圈類型:Non-Latching 功耗:140 mW 端接類型:SMT 絕緣: 介入損耗: |
| MZ-12HG-U | 功能描述:低信號繼電器 - PCB SIGNAL RoHS:否 制造商:NEC 觸點形式:2 Form C (DPDT-BM) 觸點電流額定值: 線圈電壓:5 V 最大開關(guān)電流:1 A 線圈電流:1 A 線圈類型:Non-Latching 功耗:140 mW 端接類型:SMT 絕緣: 介入損耗: |
| MZ-12HS | 制造商:Fuji Polymer Industries Co 功能描述: 制造商:FUJITSU 功能描述: |
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