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Электронный компонент: РКМА-Р

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www.sktbelpa.yaroslavl.ru
SCTB ElPA Ltd.: 20-b Ribinskoe shosse, Uglich of Yaroslavl region, 152613 Russia
Phone/Fax: +7-(08532) 546-74; 533-53 E-mail: sktbelpa@yaroslavl.ru
www.sktbelpa.yaroslavl.ru
PRESSURE SENSING QUARTZ CRYSTAL RESONATOR RKMA-P
APPLICATIONS
RKMA-P is a quartz crystal resonator whose construction consist of
measuring quartz crystal packaged to rectangular quartz crystal case.
Frequency of oscillation of RKMA-P varies with pressure-induced stress.
The crystal designed for function as a component of the precision electronic
pressure transducers, manometers and controllers with a frequency output
for conversion the current values of absolute pressure to frequency.
FEATURES
-
High resolution and accuracy
-
Long term quartz crystal stability
-
Wide temperature range (-55...+80 C)
-
Low power consumption
-
Suitable for precision pressure equipment
Standard line of RKMA-P is made. See the following tables (page 1) and drawings (page 2), please.
ELECTRICAL CHARACTERISTICS (at normal climatic conditions) / OPERATING CONDITIONS
PARAMETERS
SPECIFICATIONS AND REMARKS
UNITS
Electrical characteristics
Model of the crystal
RKMA-P-1
RKMA-P-3
RKMA-P-4
RKMA-P-2(21)
Frequency Range, f
O
32.000...48.000
kHz
Series Resistance typ./max., R
S
120; 150 / 200
150; 200 / 250
kOhm
Drive Level max., D
L
4.0
W
Insulation Resistance min., IR
400
M
Motional characteristics
F(P)=f
O
+A
1
*P +A
2
*P
2
+ A
3
*P
3
,
There: F(P) - crystal's frequency at current value of pressure P (Hz),
f
O
- crystal's frequency at zero value of pressure P (Hz),
P - current value of pressure (MPa), A
1
- the first degree linear coefficient,
A
2
, A
3
- the second and the third degree coefficients. They are determinate a nonlinearity which value less than 0.4% FS.*
Operation conditions
Model of the crystal Pressure Range, P
MPa
UNIT
Sensitivity (Linear
Coefficient A
1
)
UNIT
Overall Dimensions
UNIT
RKMA-0.1-1 (3;4)
0 - 0.10
MPa
21350.00
5...20%FS
Hz/MPa
25 x 23 x 3.0 (5.0)
mm
RKMA-0.25-1 (3;4)
0 - 0.25
MPa
7853.14
5...20%FS
Hz/MPa
25 x 23 x 3.2 (5.1)
mm
RKMA-0.4-1 (3;4)
0 - 0.40
MPa
5415.45
5...20%FS
Hz/MPa
25 x 23 x 3.3 (5.2)
mm
RKMA-0.6-1 (3;4)
0 - 0.60
MPa
3144.25
5...20%FS
Hz/MPa
25 x 23 x 3.5 (5.45)
mm
RKMA-1.0-1 (3;4)
0 - 1.00
MPa
1518.88
5...20%FS
Hz/MPa
25 x 23 x 4.45 (6.4)
mm
RKMA-1.6-1 (3)
0 - 1.60
MPa
1092.84
5...20%FS
Hz/MPa
25 x 23 x 3.65 (5.6)
mm
RKMA-2.5-1 (3)
0 - 2.50
MPa
678.055
5...20%FS
Hz/MPa
25 x 23 x 4.55 (6.5)
mm
RKMA-4.0-1 (3)
0 - 4.00
MPa
434.55
5...20%FS
Hz/MPa
25 x 23 x 4.8 (6.75)
mm
RKMA-6.0-1 (3)
0 - 6.00
MPa
294.77
5...20%FS
Hz/MPa
25 x 23 x 5.5 (7.45)
mm
RKMA-10.0-1 (3)
0 - 10.0
MPa
160.06
5...20%FS
Hz/MPa
25 23 5,15 (7,1)
mm
RKMA-16.0-1 (3)
0 - 16.0
MPa
127.51
5...20%FS
Hz/MPa
25 23 5,6 (7,5)
mm
RKMA-25.0-1 (3)
0 - 25.0
MPa
58.76
5...20%FS
Hz/MPa
25 23 6,1 (8,1)
mm
RKMA-60.0-1 (3)
0 - 25.0
MPa
33.30
5...20%FS
Hz/MPa
25 23 6,1 (8,8)
mm
-0.1-2 (21)
0 - 0.10
MPa
17551.76
5...20%FS
Hz/MPa
11 x 12 x 1.15 (dia 14.5 x 1.15)
mm
-0.15-2 (21)
0 - 0.15
MPa
11251.13
5...20%FS
Hz/MPa
11 x 12 x 1.19 (dia 14.5 x 1.19)
mm
-0.2-2 (21)
0 - 0.20
MPa
8025.80
5...20%FS
Hz/MPa
11 x 12 x 1.19 (dia 14.5 x 1.19)
mm
-0.4-2 (21)
0 - 0.40
MPa
3975.40
5...20%FS
Hz/MPa
11 x 12 x 1.19 (dia 14.5 x 1.19)
mm
-0.45-2 (21)
0 - 0.45
MPa
3675.37
5...20%FS
Hz/MPa
11 x 12 x 1.20 (dia 14.5 x 1.20)
mm
-1.2-2 (21)
0 - 1.20
MPa
1275.13
5...20%FS
Hz/MPa
11 x 12 x 1.30 (dia 14.5 x 1.30)
mm
Operating Temperature, T
OPR
(typ/max)
-55...+80 / -40...+100; -196...+250**
C
Storage Temperature, T
STR
-55...+85
C
Maximum Deviation Over Temperature
0.75
%
Relative Deviation of linear coefficient A
1
from its average value
(gets out at the request)
5...
20
%
Aging first year/next years max.
5 /
25
PPM
FS Pressure Hysteresis no more
0.02
%
Dependence Of Frequency Of The Crystal On
Temperature f
T
=f
O
+A
1
*T +A
2
*T
2
is reproduced with accuracy
0.05
%
Vibration Resistance,
F/F
0
5g / 10-2000 Hz, 8 hours / 7 PPM max.
PPM
*A
1
, A
2
and A
3
coefficients are specified on request.
**Temperature range can be increased from -196 to +250 C on request.
Temperature sensing quartz crystal RKT206 is used for compensation of a temperature deviation of RKMA-P.
Based on the pressure sensing quartz crystal resonators RKMA-P the pressure transducers, manometers and controllers with a
compensation of the temperature error (accuracy class up to 0.03) are developed and made.
www.sktbelpa.yaroslavl.ru
SCTB ElPA Ltd.: 20-b Ribinskoe shosse, Uglich of Yaroslavl region, 152613 Russia
Phone/Fax: +7-(08532) 546-74; 533-53 E-mail: sktbelpa@yaroslavl.ru
www.sktbelpa.yaroslavl.ru
2
3
.
0
0

0
.
1
0
25.000.10
1
2
3
4
EXTERNAL DIMENSIONS
There are 4 basic variants of model of a pressure sensing quartz crystal resonator RKMA-P.
RKMA-P-1 after fastening to a transducer's case is in a free condition.
RKMA-P-2 is small size variant (see "Operation Conditions" table).
RKMA-P-3 has an additional cover by which it is glued to surface for temperature isolation.
RKMA-P-4 has the metal connecting pipe through which the measured pressure acts.
UNITS: millimeters
RKMA-P-1
RKMA-P-3
RKMA-P-4
2
3
.
0
0

0
.
1
25.000.1
25.000.1
2
3
.
0
0

0
.
1
RKMA-P-2
RKMA-P-21
14.20.
1- Cover; 2- Gasket; 3- Diaphragm; 4- Contact surfaces.
2.545 4
1.0 0.5
2.545 4
2
0
.
5