WIRELESS LANCE

• US 20120147921A1
• Filed: 10/27/2011
• Published: 06/14/2012
• Est. Priority Date: 10/28/2010
• Status: Active Grant

• Current Assignee: Heraeus Electro-Nite International N.V. (Heraeus Holding GMBH)
• Original Assignee: Heraeus Electro-Nite International N.V. (Heraeus Holding GMBH)
• Inventors: SAAR, David A., CONTI, Richard F., KUSZYK, Jack Andrew, RODRIGO, Renuka
• Granted Patent: US 8,864,371 B2
• Time in Patent Office: Days
• US Class Current: 374/140
• CPC Class Codes: C21C 2005/5288 Measuring or sampling devices
• CPC Class Codes: C21C 5/462 Means for handling, e.g. adjusting, changing, coupling
• CPC Class Codes: C21C 5/4673 Measuring and sampling devices
• CPC Class Codes: F27D 19/00 Arrangements of controlling devices
• CPC Class Codes: F27D 21/00 Arrangements of monitoring devices; Arrangements of safety devices
• CPC Class Codes: F27D 21/0014 Devices for monitoring temperature
• CPC Class Codes: G01K 1/024 for remote indication
• CPC Class Codes: G01K 1/125 for siderurgical use
• CPC Class Codes: G01K 13/125 for siderurgical purposes
• CPC Class Codes: G08C 23/02 using infrasonic, sonic or ultrasonic waves
• CPC Class Codes: H04Q 2209/43 using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth or ZigBee
• CPC Class Codes: H04Q 9/00 Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
• CPC Class Codes: Y02P 10/20 Recycling

Abstract

A system for wirelessly obtaining a measurement of a characteristic of a molten metal is disclosed. The system includes a contact block configured to be operatively coupled to a first end of a substantially hollow lance holder. The contact block is detachably and electrically coupled to and receives analog signals from a measurement sensor. The contact block converts the received analog signals into ultrasonic signals and transmits the ultrasonic signals through the hollow of the lance holder. A receiver block is configured to be operatively coupled to a second end of the lance holder. The second end is opposite the first end of the lance holder. The receiver block receives the ultrasonic signals from the contact block and converts the received ultrasonic signals into a digital voltage signal.

Claims

1. A system for wirelessly obtaining a measurement of a characteristic of a molten metal, the system comprising:

a contact block configured to be operatively coupled to a first end of a substantially hollow lance holder, the contact block detachably and electrically coupled to and receiving analog signals from a measurement sensor, converting the received analog signals into ultrasonic signals and transmitting the ultrasonic signals through the hollow of the lance holder; and

a receiver block configured to be operatively coupled to a second end of the lance holder, the receiver block receiving the ultrasonic signals from the contact block and converting the received ultrasonic signals into a digital voltage signal, wherein the second end is opposite the first end of the lance holder.

2. The system of claim 1, wherein the contact block further comprises an ultrasonic transducer for transmitting the ultrasonic signals to the receiver block.

3. The system of claim 2, wherein the receiver block further comprises a receiving transducer for receiving the ultrasonic signals.

4. The system of claim 3, wherein the receiver block further comprises a substantially conical structure having a wide end and a narrow end proximate to the receiving transducer that consolidates sound at the receiving transducer.

5. The system of claim 4, wherein the wide end of the conical structure is operatively coupled to the second end of the lance holder.

6. The system of claim 3, wherein the receiver block further comprises a digital to analog converter for converting the digital signals into an analog output representing the measurement of the characteristic of the molten metal.

7. The system of claim 3, wherein the digital signals are output as a representation of the measurement of the characteristic of the molten metal.

8. The system of claim 3, further comprising the substantially hollow lance holder, wherein the lance holder further comprises a substantially conical structure having a wide end and a narrow end that consolidates sound at the receiving transducer.

9. The system of claim 3, wherein the receiver block further comprises a cooling mechanism for cooling the receiving transducer.

10. The system of claim 3, wherein the receiver block further comprises a wired transmitter coupled to external instrumentation for outputting a signal representing the measurement of the characteristic of the molten metal.

11. The system of claim 3, wherein the receiver block further comprises a wireless transmitter for outputting a signal representing the measurement of the characteristic of the molten metal to external instrumentation.

12. The system of claim 2, wherein wirelessly transmitting the ultrasonic signal further comprises transmitting the acoustic waves through air in the hollow of the lance holder.

13. The system of claim 2, wherein the contact block further comprises a microcontroller, and wherein the ultrasonic data is transmitted in the form of data packets created by the microcontroller.

14. A method of transmitting at least one characteristic of a molten metal, the method comprising:

receiving, by a contact block, an analog signal describing at least one characteristic of the molten metal from a measurement sensor, the contact block operatively coupled to a first end of a lance holder;

converting the analog signal into a plurality of ultrasonic pulses; and

transmitting the plurality of ultrasonic pulses through a hollow body of the lance holder to a receiver, the receiver operatively coupled to a second end of the lance holder that is opposite the first end.

15. The method of claim 14, wherein the acoustic waves are transmitted through air in the hollow body of the lance holder.

16. A system for wirelessly obtaining a measurement of a characteristic of a molten metal, the system comprising:

a transmitting component including an ultrasonic transducer, the transmitting component configured to be operatively coupled to a first end of a substantially hollow lance holder, the transmitting component detachably and electrically coupled to and receiving analog signals from a measurement sensor, converting the received analog signals into ultrasonic signals and the ultrasonic transducer transmitting the ultrasonic signals through the hollow of the lance holder; and

a receiver component including a receiving transducer, the receiver component configured to be operatively coupled to a second end of the lance holder, the receiving transducer receiving the ultrasonic signals from the transmitting component and the receiver component converting the received ultrasonic signals into a digital voltage signal, wherein the second end is opposite the first end of the lance holder.

17. The system of claim 16, wherein the receiver component further comprises a substantially conical structure having a wide end and a narrow end proximate to the receiving transducer that consolidates sound at the receiving transducer.

18. The system of claim 16, further comprising the substantially hollow lance holder, wherein the lance holder further comprises a substantially conical structure having a wide end and a narrow end that consolidates sound at the receiving transducer.

19. The system of claim 16, wherein wirelessly transmitting the ultrasonic signal further comprises transmitting the acoustic waves through air in the hollow of the lance holder.

20. The system of claim 16, wherein the receiver component further comprises a cooling mechanism for cooling the receiving transducer.