SMI Single-Axis Analog Inclinometer

Highlights:

The Jewell SMI Single-Axis Analog Inclinometer series are rugged, high-precision force-balanced inclinometers. These RoHS-compliant inclinometers are available in three different versions (D, L, & S series), with either a circular connector or a pin connection, and varying input and output specifications in order to meet your specific needs.

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Additional information
Dimensions 3.10 × 1.55 × 1.52 in
Features

• Extremely Rugged
• Lower Cost than Traditional Force-Balance Inclinometers
• High Resolution
• Greater Precision than MEMS Technologies
• ±5VDC, 0-5 VDC, and 4-20mA Outputs Available
• Single-Ended and Dual Power Inputs Available
• RoHs Compliant

Applications

• Aerospace
• Military
• Robotics
• Academic Research
• Geotechnical Monitoring
• Track Monitoring and Testing
• Vehicle Wheel Alignment

SMI-D: ±5V Output

SMI-D: ±5V Output

Performance Specifications

Static/Dynamic

Input Range (°)±3.0±14.5±30.0±45.0±60.0±90.0
Full Range Output (VDC, FRO ±5%)1±5±5±5±5±5±5
Non-linearity (%FRO max)20.050.020.020.020.040.05
Scale Factor (Volts/g, nominal)95.520.010.07.15.85.0
Scale Factor Temperature Sensitivity (PPM/°C maximum)100100100100100100
Bandwidth (-3dB, Hz, nominal)5.05.05.05.05.05.0
Output Axis Misalignment (° maximum)0.250.500.500.500.500.50
Pendulous Axis Misalignment (° maximum)0.250.500.500.500.500.50
0° Output (Volts Range)±0.05±0.05±0.05±0.05±0.05±0.05
0° Output Temperature Sensitivity (Volts/°C maximum)0.00700.00170.00100.00080.00070.0007
Resolution & Threshold (µ)33.53.53.53.53.53.5

Electrical

Number of Axes1
Input Voltage Range (VDC)±12 to ±18
Noise (Vrms, maximum)0.002
Input Current (mA, maximum)40
Output Impedance (Ohms, nominal)40

Environmental & Enclosure

Operating Temperature Range-55°C to +85°C
Storage Temperature Range-60°C to +90°C
Shock500g, 1 msec, ½ sine
SealIP65

Custom Capabilities

  • 15 to 30V single-ended input option available
  • Pigtail & Connector alternative options available
  • Custom ranges & bandwidths available

Notes:
1: Full Range is defined “from negative full input angle to positive full input angle.”
2: Nonlinearity is specified as deviation of output referenced to theoretical sine function value, independent of misalignment.
3: Full Resolution is achieved with noise reduction techniques

SMI-L: 4-20mA Output

SMI-L: 4-20mA Output

Performance Specifications

Static/Dynamic

Input Range (°)±3.0±14.5±30.0±45.0±60.0±90.0
Full Range Output (mA ±1%)14-204-204-204-204-204-20
Non-linearity (%FRO max)20.050.020.020.020.040.05
Scale Factor (mA/g, nominal)152.932.016.011.39.28.0
Scale Factor Temperature Sensitivity (PPM/°C maximum)100100100100100100
Bandwidth (-3dB, Hz, nominal)5.05.05.05.05.05.0
Output Axis Misalignment (° maximum)0.250.500.500.500.500.50
Pendulous Axis Misalignment (° maximum)0.250.500.500.500.500.50
0° Output (mA)11.7 to 12.311.7 to 12.311.7 to 12.311.7 to 12.311.7 to 12.311.7 to 12.3
0° Output Temperature Sensitivity (Volts/°C maximum)0.010.0030.0020.00150.00150.0015
Resolution & Threshold (µ)33.53.53.53.53.53.5

Electrical

Number of Axes1
Input Voltage Range (VDC)±12 to ±18
Noise (Vrms, maximum)0.006
Input Current (mA, maximum)55

Environmental & Enclosure

Operating Temperature Range-55°C to +85°C
Storage Temperature Range-60°C to +90°C
Shock500g, 1 msec, ½ sine
SealIP65

Custom Capabilities

  • Pigtail & Connector alternative options available
  • Custom ranges & bandwidths available

Notes:
1: Full Range is defined “from negative full input angle to positive full input angle.”
2: Nonlinearity is specified as deviation of output referenced to theoretical sine function value, independent of misalignment.
3: Full Resolution is achieved with noise reduction techniques

SMI-S: 0-5V Output

SMI-S: 0-5V Output

Performance Specifications

Static/Dynamic

Input Range (°)±3.0±14.5±30.0±45.0±60.0±90.0
Full Range Output (VDC ±0.5%)10-50-50-50-50-50-5
Non-linearity (%FRO max)20.050.020.020.020.040.05
Scale Factor (Volts/g, nominal)47.810.05.03.52.92.5
Scale Factor Temperature Sensitivity (PPM/°C maximum)100100100100100100
Bandwidth (-3dB, Hz, nominal)5.05.05.05.05.05.0
Output Axis Misalignment (° maximum)0.250.500.500.500.500.50
Pendulous Axis Misalignment (° maximum)0.250.500.500.500.500.50
0° Output (mA)+2.45 to +2.55+2.45 to +2.55+2.45 to +2.55+2.45 to +2.55+2.45 to +2.55+2.45 to +2.55
0° Output Temperature Sensitivity (Volts/°C maximum)0.00360.00100.00070.00050.00050.0005
Resolution & Threshold (µ)33.53.53.53.53.53.5

Electrical

Number of Axes1
Input Voltage Range (VDC)±15 to ±30
Noise (Vrms, maximum)0.002
Input Current (mA, maximum)40
Output Impedance (Ohms, nominal)10

Environmental & Enclosure

Operating Temperature Range-55°C to +85°C
Storage Temperature Range-60°C to +90°C
Shock500g, 1 msec, ½ sine
SealIP65

Custom Capabilities

  • ±15V bipolar input option available
  • Pigtail & Connector alternative options available
  • Custom ranges & bandwidths available

Notes:
1: Full Range is defined “from negative full input angle to positive full input angle.”
2: Nonlinearity is specified as deviation of output referenced to theoretical sine function value, independent of misalignment.
3: Full Resolution is achieved with noise reduction techniques

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