1. JAQUET Products for VG-Turbochargers and Turbobrakes
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JAQUET Products for VG-Turbochargers and Turbobrakes

2. Mission Statement
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To design, manufacture, market and service both standard and customized products that
detect, measure, diagnose and control SPEED under any circumstances.
To create a competitive edge for our customers’ applications, and secure high quality and reliability standards
To be dedicated to excellence and continuously develop innovative new solutions

3. Markets served Mobile Hydraulics Gas- Steam and Water-Turbines
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Speed-Measurement
Overspeed Protection
Position Control
Gas- Steam and Water-Turbines
Speed measurement
Pole wheels and Pole bands
Speed-Sensors for all applications
Overspeed Protection
Railway Systems
Brake Control
Feedback Loop for Propulsion System
Door Interlock
Black Box Information

4. Markets served Diesel- and Gas-Motors
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Cam- and Crank-Shaft speed
Turbocharger Speed
Overspeed Protection
Engine Diagnostics
Industrial Applications i. e. Textile machines
Speed of Spinning Head
Operator Protection
Automotive Applications
Speed of VG Turbocharger
Cam- and Crank-Shaft speed
Engine Diagnostics

5. Speed Sensors for Turbochargers
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The JAQUET Technology Group has 4 basic designs of speed sensors for these applications:
VR-Sensor standard
VR-Sensor LC
HF-Sensor „NOVA / ECON“
EC-Sensor “HERMES”

6. VR-Speed Sensor Standard
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Various executions - Also for small quantities
Large field experience in medium to high temperature applications
Detecting a flat on a steel shaft
Shielded Teflon cable for connection
Coil on former technology

7. VR-Speed Sensor Standard
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Option:
With plastic housing (PPS) for temperatures up to 390°F / 200°C

8. VR-Speed Sensor Standard
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Option:
With stainless steel housing for temperatures up to 570°F / 300°C

9. VR-Speed Sensor Standard
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Option:
With line amplifier in the connector

10. VR-Speed Sensor low cost
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Medium or high temperature applications
Detecting a flat on a steel shaft
Free Teflon wires for connection
Coil on former technology

11. VR-Speed Sensor low cost
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Epoxy body for lowest cost (temperature limit 390°F / 200°C)
Open lead wires in Teflon quality
AMP (or customer required connector)

12. VR-Speed Sensor low cost
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Stainless steel housing for temperatures up to 570°F / 300°C
Open lead wires in Teflon quality
AMP (or customer required connector)

13. HF-Sensor ECON HF-Technology
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HF-Technology
Detecting the blades of the compressor impeller
Electronic signal treatment in the connector
Shielded Teflon cable for connection
Coil on former technology

14. HF-Speed Sensor ECON
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15. EC-Speed Sensor HERMES
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„HERMES“ A new generation of “Eddy-current” Speed Sensor for VG-Turbochargers in Passenger Cars

16. Structure of inner parts HERMES
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A robust coil system is connected to the shielded lead wire cable
All inner parts are over moulded with EPOXY
Temperature resistance of sensor head = 390°F / 200°C

17. Structure of inner parts HERMES
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A 3 pin AMP superseal-connector containing signal treatment electronics
Additional functionality as per definition
Cable entry and electronic is protected by a thermelt over-mould

18. Speed Sensor Properties HERMES
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5 VDC power supply; square wave output signal
Able to detect Aluminum and Titanium blades of small dimensions
Suitable to detect speed values up to 300’000 min-1 at blades of compressor wheel
Very robust construction
Proven solution for Turbocharger applications

19. Mounting position / main dimensions
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Ready to be mounted in the compressor housing
Diameter of tip end about 5 mm
Length of nose min 30 mm
Bracket for fixing screw M5
Cable diameter ~ 5 mm, typical length 300 mm

20. JAQUET Products for VG-Turbochargers and Turbobrakes
04-04
JAQUET Products for VG-Turbochargers and Turbobrakes
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