ETEK ENV-05F-03 User manual

ETEK NAVIGATION, INC.
TEL: [phone] FAX: [phone]
10F., No.105, Xicheng Rd., Banqiao City,
Taipei County 220, Taiwan (R.O.C.)
E-Mail: [e-mail] http://www.etek.com.
Angular Velocity Sensor
MODEL: ENV-05F-03
User’sManual
Version1.0
Please read this manual before operating the unit
Published: 4.April.2000
© ETEK NAVIGATION, INC.
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Introduction
This angular velocity sensor employs the principle that a Coriolis force results if an angular velocity
is applied to a vibrating object. Murata's unique ceramic bimorph vibrating unit is used as the sensor
element unit, thereby enabling piezoelectric ceramics to be used for both excitation and detection.
The use of this unit simplifies equipment structure and circuit configuration, thus making it possible
to provide outstanding performance.
This sensor can be used for positional control and posture control of a moving object requiring
high-precision measurements.
1. Features
- On - Board mount type for easy PCB installation
- Low height of 23mm capable of being installed in a one DIN size box
2. Applications
- Dead reckoning function in car navigation systems
- Satellite antenna positioning for moving object
- Movement memory for accident recorders
- Other objects requiring angular rate detection with high precision
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3. Specifications
Type ENV-05F-03
Characteristic Symbol Condition MIN. STD. MAX. Unit
Supply voltage Vcc +4.5 +5.0 +5.5 VDC
Current consumption Icc at Vcc=5.0VDC - - 15 mA
Max. angular velocity Omax -1/3PI
(-60) -+1/3PI (+60) rad/s (deg/s)
Output Vo angular velocity = 0
at -30~80°C2.150 2.500 2.850 VDC
Scale factor Sv at -10~60°C
at -30~80°C23.0 21.7 25.0 25.0 27.0 28.3 mV/deg/s
Asymmetry CW & CCW - - 3deg/s
Temp. coefficient
Scale factor reference : Ta at -10~60°C
at -30~80°C- -- -±5 ±10 %FS
Drift at -30~80°C- - 9deg/s
Start up Measure Vo after 5s - - ±1 deg/s/10mi
n
Noise level 10kHz noise - - 20 mVrms
Linearity in the Omax - - 0.5 %FS
Response Phase delay : 90deg -10 -Hz
Dependence on
Supply voltage
Output 0.8 -1.2
Scale factor 0.8 -1.2
Operating temp. range Topr -30 -80 °C
Storage temp. range Tstg -40 -85 °C
Weight - - 20 g
Dimension 11.5(D) x 19.6(W) x 23.2(H) mm
All typical values
Unless otherwise specified, ambient temperature Ta= 25±5deg C, Vcc = 5.0 VDC
Use a sensor output load resistance of 100kohm or more.
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4. Dimensions
11.5
19.6
2.159.05
12.5
2.54
4-2.0
(t=0.3)
23.2
4.0
(1) (2) (3)
3-0.6
(t=0.35)
Unit : mm
Tolerance : ±0.5
Terminals Description
(1) +Supply (input)
(2) Ground (common)
(3) Sensor Output (output)
Y Axis
X Axis
Z Axis (Sense Axis)
CW
CCW
0.3
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5. Installation
1) Install the sensor with the bottom face as reference.
2) Install the sensor vertically with respect to the rotating surface. (90 ± 5 deg)
3) Install the sensor in a location free from vibration.
4) Install the sensor in a place free from substantial variations in temperature.
5) When installing the sensor, solder four tabs and terminals on PCB (t=1.6mm).
6) Observe the following rules. If not, characteristics might vary due to soldering heat.
Soldering iron Flow soldering
Terminal : 350±5deg C, 5s or less.
Tab : 350±5deg C, 10s or less.
Soldering : 250±5deg C, 5s or less.
Preheating :105±10degC,2min.or less.
7) Tabs can be bent only once.
6. Terminal connection
Terminal descriptions
Please refer to page 3 for terminals.
Terminal Symbol Descriptions
1+Vcc Supply voltage (input)
2GND Ground (common)
3Vout Sensor output (output)
6.256.25
2.54
11.2
0.8
18.6
3.0
3-ø1.0
2.15
1.3
Unit : mm
1.3
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