| 摘要 |
PROBLEM TO BE SOLVED: To develop a low-cost ultrasonic measuring sensor that can be commonly applied to a wide range of measurement field, and to achieve a measurement system of the state of a diversified target to be measured using the sensor. SOLUTION: The ultrasonic measuring sensor 2 comprises: a container body 4; liquid 8 that is sealed to have a liquid surface 10 in the container body 4; and an ultrasonic vibrator 6 that is arranged at the container body 4 so that ultrasonic waves are transmitted in the liquid 8, and the ultrasonic waves that are reflected from the liquid surface 10 are received. When the ultrasonic measuring sensor 4 is arranged at the target to be measured and is connected to an ultrasonic control apparatus 14 by a cable 16, the liquid surface 10 inside the ultrasonic measuring sensor 2 is vibrated an inclined in linking with the vibration and inclination of the target to be measured, and change in the state is measured by ultrasonic waves, thus measuring and observing a change in the state of the wide range of target to be measured. For example, the condition/heart sound measurement of a patient, the identification measurement of a human, crime prevention measurement of a building, acceleration measurement of a mobile unit, and an earthquake measurement become possible by using the ultrasonic measuring sensor. COPYRIGHT: (C)2004,JPO |
