| 摘要 |
PROBLEM TO BE SOLVED: To provide a measuring device that has a transmitting circuit for transmitting a measured value by radio and is in the form of a measuring counter, a measuring slide, and a measuring screw.SOLUTION: A measuring device 10 includes a housing 11, in which a measuring circuit, a transmitting circuit, and a receiving circuit are arranged on a common conductor board. The transmitting circuit and the receiving circuit use a common conductor flat plate antenna 21 installed on the conductor flat plate. A voltage supply circuit which applies a voltage to the measuring unit, the transmitting circuit, and the receiving circuit is also arranged on the conductor board, there is no need for an interface arranged outside the housing between the measuring unit and the transmitting circuit or the receiving circuit. Since the voltage supply circuit is common, the whole circuit constitution is relatively small in overall installation area. The housing can be easily sealed and can easily be a necessary protective housing. A measured value is detected through a measured value sensor 12 in the housing, and converted by the measuring unit into an electric measurement signal, which is transmitted by radio to an external center unit 20 through the transmitting circuit.SELECTED DRAWING: Figure 1 |
