Device for operating and reading an ultrasound transducer group for ultrasound computed tomography, and ultrasound computed tomography machine

摘要

The present invention relates to a device (110) for operating and reading a group of ultrasound transducers (112) for ultrasound computed tomography, the device (110) as an input channel (124) a first zone (118) and an output channel As 126, a common substrate 116 having a second zone 120 electrically separated from the first zone by n troughs; At least one high voltage signal input 128 on the first zone for receiving analog high voltage signals; At least one high voltage amplifier 132 with high voltage CMOS semiconductor components on the first zone 118 for receiving and amplifying analog high voltage signals; A group of at least one ultrasound transducer 112 on the first zone 118-at least one of the ultrasound transducers 112 is designed to generate ultrasound signals during the transmission phase, and at least one of the ultrasound transducers 112 Is designed to receive ultrasonic measurement signals 140-; At least one multiplexer 156 for combining ultrasonic measurement signals 140 from at least two different ultrasonic transducers 112 to a common measurement signal 148; At least one low noise low voltage preamplifier 152 with CMOS semiconductor components on the second zone 120 for receiving the measurement signal 148; At least one output switch 150 on the second zone 120 for canceling the application of the measurement signal 148 to the low voltage preamplifier 152 during at least the transmit phase; And at least one low voltage signal output 154 for transmitting the preamplified measurement signal 148 to the external control and analysis unit 212.