A critical component of aircraft braking systems electromagnetic transducers are required to convert rotational wheel speed information into periodic voltage signals for anti-skid control and spoiler actuation.
Hypernetics designs and manufactures, to customer specifications, transducers to meet the problems of high cycle life and adverse environmental requirements in both commercial and military aircraft.
A new miniature electromagnetic wheel speed sensor has been developed for use in smaller aircraft. This robust transducer can perform reliably at elevated temperatures and features a simple, cost effective design.
Specifications:
- Output voltage: 3.5V p-p 1600 RPM
- All metal design
- Output Frequency: 48 cycles per revolution
- Speed Range: 0-3000 RPM
- Temperature Range: -55°C to +200°C
- Coupling: Backlash Free
- Outside Diameter: 2.50cm (0.985in.)
- Length: 9.1cm (3.6in.) including connector
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Future avionics technology will require better resolution of wheel speed for anti-skid braking control. The Hypernetics fiber optic transducer features increased frequency and enhanced accuracy of the output waveform over existing electromagnetic transducers. Transducer volume and weight is markedly reduced and transmission lines are immune to EMI and RFI.
Specifications:
- Output: TTL compatible output signal from opto-electronic interface
- OE Interface: Provides optical power and wave shaping
- Output Frequency: To 500 cycles per revolution
- Speed Range: 0-3000 RPM
- Temperature Range: -55°C to +177°C
- Transducer Insertion Loss: 5db maximum
- Redundancy: Dual channel redundancy provision
- Reliability: 72,000 hours minimum flight hours
- Outside Diameter: 6.10cm (2.40in.)
- Length: 6.65cm (2.62in.)
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