发明名称 |
ULTRASONIC LEVEL MEASUREMENT APPARATUS AND METHOD HAVING VARIABLE TRANSMIT POWER |
摘要 |
The invention provides a method for improving the accuracy of level measurement by reducing or eliminating receive circuit saturation in ultrasound level measurement apparatus. The method involves adjusting the transmit power in order to control echo amplitude, in particular to avoid saturation, when the surface being monitored is within a pre-defined distance from the ultrasound transducer. The particular advantage of the invention is that it may be implemented without change to the electronic circuitry embodied in the apparatus. |
申请公布号 |
EP2130006(B1) |
申请公布日期 |
2016.05.11 |
申请号 |
EP20080779574 |
申请日期 |
2008.03.12 |
申请人 |
ROSEMOUNT MEASUREMENT LIMITED |
发明人 |
SEARS, JEFFERY, ALLAN;COELHO, LUIS FILIPE DA SILVA RIBEIRO |
分类号 |
G01F23/296;G01S7/52;G01S15/88 |
主分类号 |
G01F23/296 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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