參數(shù)資料
型號: RD-19230FX-202T
廠商: DATA DEVICE CORP
元件分類: 位置變換器
英文描述: SYNCHRO OR RESOLVER TO DIGITAL CONVERTER, PQFP64
封裝: 0.520 X 0.520 INCH, PLASTIC, QFP-64
文件頁數(shù): 11/23頁
文件大?。?/td> 476K
代理商: RD-19230FX-202T
19
Data Device Corporation
www.ddc-web.com
RD-19230
W-05/08-0
+S
-S
SIN
aR
R
+C
-C
COS
R'
-
+
-
+
R/2
R
aR
bR
2R'
R'
bR
+RH
-RL
R'
R
VB
VA
FS = 2V
-2V
REF
Notes:
1. R' > 10 k
Ω
2. Consideration for the value of R is LVDT loading.
3. RMS values given.
4. Use the absolute values of Va and Vb when subtracting per the formula for calculating resistance values,
and then use the calculated sign of "Va and Vb" for calculating SIN and COS. The calculations shown
are based upon full scale travel being to the Va sideof the LVDT.
5. See the RDC application manual for calculation examples.
6. Negative voltages are 180 degrees phase from reference.
VB
VA
LVDT
OUTPUT
+FS
-FS
NULL
COS
SIN
RD-19230
INPUT
-FS
+FS
NULL
1V
2V
1
b =
=
VAnull
VBnull
2
a =
(VA - VB) max
a
SIN = -1V +
(VA - VB)
2
a
COS = -1V -
(VA - VB)
2
FIGURE 25. 3-WIRE LVDT SCALING CIRCUIT & CALCULATIONS
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