20011422-00 [TE]
830M1 TRIAXIAL CONDITION MONITORING ACCELEROMETER;
| 型号： | 20011422-00 |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | 830M1 TRIAXIAL CONDITION MONITORING ACCELEROMETER 监视器 |
| 文件： | 总15页 (文件大小：694K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
te.com
830M1 TRIAXIAL CONDITION
MONITORING ACCELEROMETER
• Triaxial Piezoelectric Accelerometer
•
25g to 2000g Dynamic Ranges
• Wide Bandwidth to 15,000Hz
• Superior Resolution to MEMS Devices
• Circuit Board Mountable, Reflow Solderable
• Low Cost, Superior Value
The Model 830M1 is a low cost, triaxial board mountable
accelerometer designed for embedded condition monitoring and
preventive maintenance applications. The piezoelectric (PE)
accelerometer is available in ranges from 25g to 2000g and
features a flat frequency response up to >15kHz in all three axes.
The model 830M1 accelerometer three independent stable piezo-
ceramic crystals in shear mode with low power electronics,
sealed in a fully hermetic LCC package.
FEATURES
Temperature Sensor Included
Amplified 1.25V Signal Output
3.3 to 5.5Vdc Excitation Voltage
Hermetically Sealed LCC Package
Piezo-Ceramic Crystals, Shear Mode
-40° to +125°C Operating Range
Small PCB Footprint
The PE technology incorporated in the 830M1 accelerometer has
a proven track record for offering the reliable and long-term stable
output required for condition monitoring applications. The
accelerometer is designed and qualified for machine health
monitoring and has superior resolution, dynamic range and
bandwidth compared to MEMS devices.
An RTD temperature sensor is included inside the LCC package
should the intended application require both a vibration and
temperature sensor signal.
APPLICATIONS
Machine Health Monitoring
Predictive Maintenance Installations
Embedded Vibration Monitoring
Impact & Shock Monitoring
Data Loggers
For single axis measurements, TE Connectivity also offers other
accelerometer models with the same outstanding performance
specifications.
Bearing Installations
Security Monitoring
›
CLICK HERE
CONNECT WITH A SPECIALIST
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 1
830M1 TRIAXIAL ACCELEROMETER
ABSOLUTE MAXIMUM RATINGS (1)
Parameter
Supply voltage(2)
Symbol
Vdd
TS
gmax
Min
1.5
-40
Typ
Max
5.5
125
5,000
+2
Unit
V
°C
g
Notes/Conditions
3.3
Storage temperature
Shock limit (any axis)
ESD
-2
kV
Human body model
(1)
Maximum limits the device will withstand without damage
(2)
With 1.5V-2.5V excitation, full-scale range will be limited. So 3.3V min recommended.
OPERATING RANGES & NOISE - ACCELEROMETER
(Unless otherwise specified, all parameters are measured at 24°C @ 3.3V applied)
Measurem
ent Range
(g)
Non-
Linearity
(%FSO)
Residual
Noise(1)
(mg RMS)
Spectral Noise (mg/√Hz)
Sensitivity
mV/g
10Hz
100Hz
1kz
10kHz
25
50
50.0
25.0
12.5
6.3
2.50
1.25
0.63
2
2
2
2
2
2
2
2.9
5.9
0.15
0.29
0.58
1.16
2.92
5.84
11.7
0.07
0.13
0.27
0.53
1.34
2.68
5.36
0.03
0.05
0.09
0.18
0.52
1.04
2.08
0.02
0.05
0.09
0.18
0.45
0.90
1.80
100
200
500
1000
2000
11.7
23.2
58.5
117
234
(1)
2Hz to 10 kHz
ELECTRICAL SPECIFICATIONS
(Unless otherwise specified, all parameters are measured at 24°C @ 3.3V applied)
Parameters
Symbol
Min
Typ
Max
Unit
Notes/Conditions
Excitation voltage
Zero g output voltage
Average supply current
Output impedance
Warm-up time
Vdd
3.3
5.5
Vdc
Vdd/2
200
50% of applied voltage
Iavg
Rout
µA
Ω
Sec
100
1
OPERATING SPECIFICATIONS - ACCELEROMETER
(Unless otherwise specified, all parameters are measured at 24°C @ 3.3V applied)
Parameter
Full scale output
Symbol
Min
Typ
1.25
Vdd/2
Max
Unit
Notes/Conditions
V
0.0g output voltage (bias V)
Frequency response
Frequency response
Resonant frequency
Transverse sensitivity
Calibration
6
2
30k
10k
15k
Hz
Hz
Hz
%
1db
3db
8
All Axes
CS-SENS-0100 NIST Traceable Amplitude Calibration at 80Hz
All parts are shipped with calibration data
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 2
830M1 TRIAXIAL ACCELEROMETER
OPERATING SPECIFICATIONS – RTD TEMPERATURE SENSOR (1)
(Unless otherwise specified, all parameters are measured at 0°C)
Parameter
RTD resistance
Tolerance
Symbol
Min
997.81
-0.12
Typ
Max
1002.20
+0.12
Unit
Ω
%
Notes/Conditions
@ 0°C
R0
1000
Class B
(0.4+0.007 x |T|)
(0.4+0.028 x |T|)
°C
°C
0 to +125°C
-40 to 0°C
Calculated tolerance
Temperature coefficient
Temperature range
TCR
6100
-40
1.4
6178
6240
125
2.0
ppm/K
°C
mW/K
%
Self-Heating coefficient(2)
Long term stability
EK
ΔR
I
1.7
0.1
0.2
@ 0°C
1k hrs @ 150°C
Measurement current(2)
5
mA
(1)
The temperature sensor is located inside the sensor enclosure. As such, it provides the temperature of the sensor interior, not the ambient
temperature around the sensor, nor the temperature of surface to which the sensor is mounted.
( )
2
Self heating effects must be taken into account. See additional information in this data sheet.
ENVIRONMENTAL SPECIFICATIONS
Parameter
Symbol
Min
Typ
Max
125
125
100
Unit
°C
°C
Notes/Conditions
Operating temperature
Storage temperature
Ambient humidity
-40
-40
0
%
Ingress protection
IP
68
Hermetic Package
External exposed surfaces:
Alumina
Media compatibility
Weight
Gold
Au/Sn Solder
3.3
grams
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 3
830M1 TRIAXIAL ACCELEROMETER
BLOCK DIAGRAM
IR REFLOW TEMPERATURE PROFILE
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 4
830M1 TRIAXIAL ACCELEROMETER
DIMENSIONS
BOTTOM VIEW
CONNECTION TABLE
Pin Number
Definition
X axis output
Y axis output
1
2
3
Z axis output
4
N/C
5
N/C
6
N/C
7
8
9
GND
RTD temp out
Vdd
10
11
12
N/C
N/C
N/C
N/C connections – do not connect to the circuit
PC board solder pad layout and dimensions
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 5
830M1 TRIAXIAL ACCELEROMETER
TYPICAL ACCELEROMETER FREQUENCY RESPONSE CURVE
Graph 1
TYPICAL ACCELEROMETER THERMAL SHIFT OF SENSITIVITY
Graph 2
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 6
830M1 TRIAXIAL ACCELEROMETER
MOUNTING CONSIDERATIONS
Accelerometers are used to measure vibration and motion of various pieces of equipment and their components.
To obtain the most faithful reproduction of the movements, a solid mounting method is required. The model 830M1
is designed to surface mount on a PC board with the primary attachment being the connection solder pads.
Although it is recommended that several of the contacts (pins 4-6 & 10-12) not be connected to any part of the
electrical circuit, mating solder pads can be added to the PC board but then left unconnected. Soldering all contacts
of the accelerometer will provide the most solid mounting and best measurement results.
Rigid support for the accelerometer PC board will also help to improve the quality of measurement signals.
Ultimately, the accelerometer must move at the same frequencies and displacements as the object of interest. PC
board mounting that’s not rigid enough will introduce unwanted noise and resonant frequencies into the
measurement signal.
Figure 1 shows an example of a poorly
mounted accelerometer. With no support
close to the sensor, the PC board will flex
and vibrate at its own resonant frequency
much like a trampoline. This will introduce
unwanted resonant peaks into the
frequency range of interest making accurate
data collection difficult.
Figure 2 shows a better mounting design
Figure 4
that provides support very close to the
sensor and helps to eliminated unwanted
vibrations and noise. If the PC board is
mounted on standoffs, locate at least two
standoffs as close to the accelerometer as
possible. This will help stabilize the
accelerometer mounting surface and help to
ensure that faithful vibration and motion get
transferred to the sensor.
Figure 4
Figure 3 shows the addition a rigid
mounting block directly between the
accelerometer PC board and the vibrating
object. This design provides good coupling.
Use a rigid adhesive on both mating
surfaces of the block for good mechanical
coupling.
Figure 4 shows the PC board attached
directly to the vibration source. Use a rigid
Figure 4
adhesive to improve the transmission of
high frequency vibrations and acoustic
energy. Soft or elastic adhesives (pressure
sensitive tapes, RTVs, pliable glues, etc)
tend to dampen and absorb higher
frequency excitations. Don’t use them.
Figure 4
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 7
830M1 TRIAXIAL ACCELEROMETER
ORIENTATION CONSIDERATIONS
Accelerometers are designed to do unidirectional motion sensing. A single axis accelerometer will be sensitive to
motion and acceleration in a single direction only. The 830M1 is able to sense and measure motion and
acceleration in all three orthogonal axes (X, Y, Z) and provides analog voltage outputs that represent the signal
magnitude in each axis. The accelerometer must be properly oriented during assembly into the application to
ensure that it will accurately sense the magnitude of vibration and motion in the proper axes.
As shown in the detailed dimension drawing, each sensing axis is aligned to be parallel with the external surfaces
of the accelerometer package. When the sensor is designed into an application, it’s position must be oriented to
align with the desired measurement directions of the customer product.
There are many places in an application where alignment errors can appear. The 830M1 is mounted on a PC
board and must be carefully aligned to it. The PC board is part of a subsystem and must be carefully aligned
there also. And finally, the subsystem is part of the overall product and must be aligned to that. Each of these
mounting interfaces can be a source of mis-alignment errors and when summed can become significant.
For the 830M1 accelerometer, there are two types of alignment errors – rotational and tilt. Figures 5 & 6 show
how these occur.
Figure 6
Figure 5
Both types of misalignment errors result in incorrect output voltages for vibration amplitude. The output error will
be proportional to the cosine or 1-cosine of the error angle θ.
In figure 5, if the acceleration or vibration is along the X axis, a rotational misalignment error will decrease the X
axis signal by the cosine of the error angle and increase the Y axis signal by 1-cosine of the error angle. The Z
axis signal will not change.
In figure 6, if acceleration is again along the X axis, and the X axis is tilted, then the error will again decrease the
X axis signal by the cosine of the error angle and increase the Z axis signal by 1-cosine of the error angle. The Y
axis signal will not change.
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 8
830M1 TRIAXIAL ACCELEROMETER
ACCELEROMETER OPERATION AT REDUCED VOLTAGES
The 830M1 accelerometer is designed to provide the specified operation with the applied power voltage in the
range of 3.3 to 5.5 VDC. The sensor can also provide limited operation with applied voltages down to 1.5V. The
only parameter affected by a reduced input voltage is the maximum output amplitude for each g range.
The internal amplifier is designed to have a constant gain for each g range and will produce a maximum output
signal of 1.25 V for that range. At input voltages less than 2.8 V, the output voltage span will be the same as the
power voltage. The sensor will retain the stated sensitivity level, but the output will be clipped at the power supply
voltages shown by this formula:
gmax = Measurement g range with applied voltage between 1.5 – 2.5V
gspec = specified g range when applied voltage >2.5V
Vapp = applied power voltage (1.5 – 2.5V)
120
100
80
60
40
20
0
0
1
2
3
4
5
6
Applied Voltage
Figure 5
g range (Vdd >2.8V)
Effective g range (Vdd =1.5V)
25
50
15
30
100
200
500
1000
2000
60
120
300
600
1200
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 9
830M1 TRIAXIAL ACCELEROMETER
BUILT-IN RTD TEMPERATURE SENSOR TRANSFER FUNCTION
RTD Temp Sensor
Graph 3
Graph 4
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 10
830M1 TRIAXIAL ACCELEROMETER
TEMPERATURE SENSOR SELF HEATING EFFECT
For accurate temperature measurement it is recommended to use a small current to avoid self-heating of the
temperature sensing element. The temperature error caused by excessive measurement current can be
calculated using:
ΔT = Sensor output deviation from true temperature
I = Resistor current
R = RTD resistance
EK = Self-heating coefficient
TEMPERATURE SENSOR ELECTRICAL CHARACTERISTICS
The characteristics of the nickel RTD temperature sensor are specified as per DIN 43760. The large
Temperature Coefficient of Resistance (TCR) of the RTD (6178 ppm/K) offers greater sensitivity than other types
of RTDs. The electrical characteristics can be described by these equations:
R = RTD resistance value
T = Applied temperature
Coefficients:
a = 5.485 x 10-3
b = 6.650 x 10-6
c = 2.805 x 10 -11
d = -2.000 x 10-17
T = True temperature
R = Measured resistance
Coefficients:
a’ = 412.6
b’ = 140.41
c’ = 0.00764
d’ = 6.25 x 10-17
e’ = -1.25 x 10-24
TEMPERATURE SENSOR TOLERANCES
Tolerances for the nickel RTD are industry standard class B which is 0.12% for resistance at 0°C. This is
equivalent to a temperature accuracy of 0.3°C. To calculate tolerance at other temperatures, use these
formulae:
From -40°C to 0°C –
From 0°C to 125°C –
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 11
830M1 TRIAXIAL ACCELEROMETER
SIMPLE INTERFACE CIRCUITS CONVERT TEMPERATURE TO LINEAR VOLTAGE
The resistive divider or constant current circuits will provide a low accuracy linear voltage output representing
temperature.
RTD Analog Voltage Out
0.600
0.500
0.400
0.300
Voltage Divider
Constant Current
0.200
0.100
0.000
-50
-30
-10
10
30
50
70
90
110
130
150
Temperature / °C
Graph 5
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 12
830M1 TRIAXIAL ACCELEROMETER
INTERFACE CIRCUIT WITH A HIGH ACCURACY OUTPUT
The operational amplifier circuit uses a Wheatstone bridge front end to improve measurement resolution. The
addition of R5 improves the circuit linearity.
High Accuracy Out
3.000
2.500
2.000
1.500
1.000
0.500
0.000
-50
-30
-10
10
30
50
70
90
110
130
150
Temperature / °C
Graph 6
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 13
830M1 TRIAXIAL ACCELEROMETER
PACKAGING OPTIONS
Stackable Trays – 50 pcs ea
Tape & Reel
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
Page 14
830M1 TRIAXIAL ACCELEROMETER
ORDERING INFORMATION
830M1-xxxx
Suffix
G Range
Packaging Part Number
Tray (50 pcs)
Tape & Reel (400 pcs)
20011422-01
20011423-01
20011424-01
20011425-01
20011426-01
20018122-01
20019427-01
0025
0050
0100
0200
0500
1000
2000
25g
50g
20011422-00
20011423-00
20011424-00
20011425-00
20011426-00
20018122-00
20019427-00
100g
200g
500g
1000g
2000g
›
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NORTH AMERICA
Tel +1 800 522 6752
EUROPE
Tel +31 73 624 6999
ASIA
Tel +86 0400 820 6015
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be trademarks of their respective owners
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TE Connectivity makes no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. TE Connectivity‘s obligations shall
only be as set forth in TE Connectivity‘s Standard Terms and Conditions of Sale for this product and in no case will TE Connectivity be liable for any incidental,
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to determine the suitability of each such product for the specific application.
© 2021 TE Connectivity Corporation. All Rights Reserved.
01/2021
TE CONNECTIVITY SENSORS /// MODEL 830M1
01/2021
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