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The Fredericks Company
0711-0744-99 Single Axis, Narrow Angle, Electrolytic Tilt Sensor.

0711-0744-99 Single Axis, Narrow Angle, Electrolytic Tilt Sensor.

Product catalog summary

Overview: The Fredericks Company's 0711-0744-99 Single Axis, Narrow Angle, Electrolytic Tilt Sensor is designed for high accuracy in small angle ranges with excellent null repeatability. It is known for its stability over time and across a wide temperature range, thanks to its hermetic glass to metal construction and solid platinum electrodes.

Applications: This sensor is suitable for use in construction laser instruments, aircraft avionics, geophysical monitoring, machine tool leveling, and medical positioning and monitoring.

Specifications:

Angle Range: ± 3°
Resolution: 1 arc second
Null Repeatability: ≤ 5 arc seconds
Operating Temperature: -20°C to +50°C
Storage Temperature: -50°C to +100°C
Null Voltage: < 0.010 Volts
Null Current (max): 0.5 mA (continuous)
Null Impedance (nominal): 1000 Ohms at 25°C
Time Constant: < 500 msec
Materials: Non-magnetic
Temperature Coefficient: +0.5 arc seconds/°C at null

Physical Dimensions:

Vial Length: 1.25” (31.7mm)
Vial Diameter: 0.281” (7.1mm)
Lead Length: 0.125” (3.1mm)

Testing and Circuitry: Tests involve exciting the left and right electrodes with a 400 Hz AC signal to produce maximum current at null. Output readings are taken between the center electrode and the center of balanced resistors R1 and R2. Tests are conducted at +25°C. It is crucial to ensure all test and operating circuits are free of direct current to prevent damage or instability.

Figures:

Figure 1: Output Sensitivity - Shows the percentage output against tilt angle in arc minutes.
Figure 2: Impedance/Temperature - Displays impedance in Kohms against temperature in degrees Celsius.

Catalog excerpts

0711-0744-99 Single Axis, Narrow Angle, Electrolytic Tilt Sensor.-1

The Fredericks Company 0711-0744-99 Single Axis, Narrow Angle, Electrolytic Tilt Sensor. The 0711-0744-99 Sensor has been used successfully in applications that demand a high accuracy for small angle ranges and excellent null repeatability. The sensor offers excellent stability over time and wide range of temperatures. The hermetic glass to metal construction and solid platinum electrodes guarantee a long operating life and stable operating characteristics. Applications Include: ® Construction Laser Instruments and Transits ® Aircraft Avionics ® Geophysical Monitoring ® Machine Tool Leveling ® Medical Positioning and Monitoring 2400 Philmont Avenue Huntingdon Valley, Pennsylvania 19006-0067 Phone: (215) 947- 2500 Fax: (215) 947-7464 Web: w ww.frederickscom.co m P/N 07110744999 Email: [email protected] Angle Range ± 3 ° Resolution 1 arc sec. Null Repeat £.5-arc sec.

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