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US 2010/0063772 A1Published application
Apparatus and method for measuring length of pipe
AssigneeLG Electronics Inc.
InventorsJun-Tae Kim, Chi-Sun Ahn, Seung-Hwan Jung, Sang-Chul Youn, Duck-Gu Jeon
Life of this patent
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Abstract
An apparatus for detecting a pipe length in an air conditioning system includes a detector to detect a signal traveled through a pipe; and a processor to determine a pipe length based on the detected signal.
Claims23
A pipe length detecting apparatus comprising:
- a detector to detect a signal traveled through a pipe;
- and
- a processor to determine a pipe length based on the detected signal.
A pipe length detecting apparatus comprising:
- a first impedance coupler to couple to a pipe;
- a signal generator to generate a signal to be sent to the pipe through the first impedance coupler;
- a second impedance coupler to couple to the pipe;
- a detector coupled to the second impedance coupler to detect the signal traveled through the pipe from the first impedance coupler to the second impedance coupler;
- and
- a processor that determines a length of the pipe based on a difference in amplitude of the sent signal and the detected signal, and impedances of the first and second coupling portions.
3 more elements
An air conditioning system comprising:
- an indoor unit:
- an outdoor unit;
- a pipe coupling the indoor unit to the outdoor unit;
- at least one of a signal generator or a detector located at or in a vicinity of the indoor unit;
- at least one of a counterpart signal generator or a counterpart detector located at or in a vicinity of the outdoor unit;
- a first impedance coupler coupled to one end of the pipe at or in the vicinity of the indoor unit, the at least one of the signal generator or the detector coupled to the first impedance coupler;
- a second impedance coupler coupled to another end of the pipe at or in the vicinity of the outdoor unit, the at least one of the counterpart signal generator or the counterpart detector coupled to the second impedance coupler;
- and
- at least one controller that determines a length of the pipe based on a difference in a signal generated by the signal generator or the counterpart generator and the signal detected by the detector or the counterpart detector, and impedances of the first and second impedance couplers.
6 more elements
Dependencies are inferred from the claim text.