| 摘要 |
A test system consists of a measuring apparatus (100) for recording a property of an object (130) to be tested and a test hammer (200) for striking a section of an object to be tested. The test hammer contains a motion sensor (202) and a transmission module (201) for transmitting a strike start indication signal (s2) when the motion sensor detects a motion state which indicates a start of a strike and/or for transmitting an impact indication signal (s3) when the motion sensor detects a motion state which indicates an impact. The measuring apparatus contains a test signal generation unit (113) for generating a test signal, a test signal output unit (114) for outputting the test signal to the object to be tested, a measurement signal receiving unit (116) for receiving a measurement signal produced in response to the output of the test signal, an analysing unit for determining a magnitude of a portion of the measurement signal corresponding to the property to be recorded, a transmission module for receiving a control signal (s1-s3) from the outside and a real-time controller (104) which is able to reliably change some of the components of the measuring apparatus to the energy-saving mode and/or to remove said components from the energy-saving mode in a predetermined time in response to the control signal received from the outside. |
