Buried meter and structure measurement system
First Claim
1. A buried type measuring instrument, comprising at least:
- a case to be buried in a structure;
a sensing unit for sensing a physical value pertaining to a change of state of the structure, the sensing unit being formed in part of the case;
a transducer for converting the physical value from the sensing unit into an electric signal;
a transmission circuit unit for outputting a carrier signal modulated by an output of the transducer; and
a transmission coil for receiving an output of the transmission circuit unit and generating a low frequency magnetic field signal, each of the transducer, the transmission circuit unit, and the transmission coil being accommodated in the case, wherein the low frequency magnetic field signal is used to transmit measurement data outside the structure.
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0 Petitions
Accused Products
Abstract
A buried type measuring instrument has a sensing unit 10A which is formed in part of a case 10 and senses a physical value pertaining to a change of state of a structure. This case 10 accommodates a transducer 11 for converting the physical value sensed by the sensing unit 10A; a transmission circuit unit 12 for outputting a carrier signal modulated by an output of the transducer 11; a drive unit 13 for driving the transducer 11 and the transmission circuit unit 12 with power supply from a battery 15; and a transmission coil 14 for receiving an output of the transmission circuit unit 12 and generating a low frequency magnetic field signal. This case 10 is buried in the structure. Consequently, it is possible to provide a measuring instrument which can adopt a radio communication mode to secure a sufficient cutoff function of the structure and avoid damage to the measuring sensor, allows remote data acquisition, and even has no adverse effect on strength characteristics of the structure.
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Citations
14 Claims
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1. A buried type measuring instrument, comprising at least:
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a case to be buried in a structure;
a sensing unit for sensing a physical value pertaining to a change of state of the structure, the sensing unit being formed in part of the case;
a transducer for converting the physical value from the sensing unit into an electric signal;
a transmission circuit unit for outputting a carrier signal modulated by an output of the transducer; and
a transmission coil for receiving an output of the transmission circuit unit and generating a low frequency magnetic field signal, each of the transducer, the transmission circuit unit, and the transmission coil being accommodated in the case, wherein the low frequency magnetic field signal is used to transmit measurement data outside the structure. - View Dependent Claims (2, 3, 4, 6, 8, 9, 10, 11, 12, 13, 14)
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5. A buried type measuring instrument, comprising:
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a case to be buried in a structure as one of components for forming the structure;
a sensing unit for sensing a physical value pertaining to a change of state of the structure, the sensing unit being formed in part of the case;
a transducer for converting the physical value from the sensing unit into an electric signal;
a transmission circuit unit for outputting a carrier signal modulated by an output of the transducer;
a transmission coil for receiving an output of the transmission circuit unit and generating a low frequency magnetic field signal, each of the transducer, the transmission circuit unit, and the transmission coil being accommodated in the case;
a reception coil for receiving a signal from an outside of the structure; and
a reception circuit unit for receiving a reception signal received by the reception coil and performing a content of the signal, the reception coil and the reception circuit unit being accommodated in the case, wherein a control signal from the outside of the structure is received to transmit measurement data according to the content of control of the control signal outside the structure. - View Dependent Claims (7)
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Specification