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Philips M2540 service manual Theory of Operation TR Boards

Models: M2540

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M2540-92000-01 A M2540 Ultrasound System Field Service Manual

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Theory of Operation: TR Boards

plugs into the distribution board. The two boards form electronic beams of the transmit and receive signals. Each TR board contains 64 transmitters and 32 preamps multiplexed into 64 receive channels. This allows multiplexing the system’s 64 active channels into 128 element arrays. Each receive channel consists of time gain compensation (TGC) amplifiers, low pass filters, 10-bit A/D converters, and one eighth of a digital beam-forming circuit. Each TR board sends on its output bus a value that is the sum of the data from its 32 channels plus its 18-bit input bus. The last TR board in this chain outputs the final summed radio-frequency (RF) data to the demodulator board.

The transmit and receive beam-forming coefficients for acoustic lines are downloaded on the coefficient bus from the BPAP board.

The BPAP board generates the timing to start and stop each firing line, and sends the transmit signal to the TR board, through the distribution board and the connector modules to the transducer. Analog drivers generate the transmitted RF data. A digital timing generator delays and times each of the analog drivers. The delay generators receive the appropriate delay values from the BPAP for each channel. The system power supply controls the amplitude of the transmitted waveform.

The received signal is preamplified, TGC amplified, low-pass filtered, and digitized (in all modes except CW). The BPAP board generates TGC control signals through the demodulator board.

After being digitized, the signal on each line is delayed appropriately. The outputs of all channels are daisy-chained together to sum the outputs. The RF data output of one TR board is the input to the next TR board, and the outputs of the TR boards are summed to form the received beam. The summed output signal (RF DATA) goes to the demodulator board.

The CW Doppler signal is mixed to an analog intermediate frequency (IF) signal. The CW

Doppler output is a single differential signal routed to the demodulator board.

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Philips M2540 service manual Theory of Operation TR Boards
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M2540 specifications

The Philips M2540 is a versatile and feature-rich patient monitor designed to enhance healthcare delivery in various clinical settings, from hospitals to outpatient facilities. With its advanced technology and user-friendly interface, the M2540 optimizes patient care through accurate monitoring and seamless data integration.

One of the standout features of the Philips M2540 is its advanced parameter capabilities. It supports a wide range of measurements including ECG, heart rate, non-invasive blood pressure, temperature, and respiratory rate. This comprehensive monitoring allows healthcare professionals to obtain a holistic view of a patient's condition in real time, ensuring timely interventions when necessary.

In addition to the standard parameters, the M2540 offers optional modules for more specialized monitoring, such as multi-gas analysis and invasive blood pressure. This adaptability makes it suitable for various clinical environments, including surgical units, critical care, and ambulatory settings.

The M2540 is equipped with Philips' innovative IntelliVue technology, which enhances monitoring accuracy and reliability. IntelliVue incorporates advanced algorithms that reduce false alarms, thus easing the burden on healthcare staff and improving patient safety. Furthermore, the monitor features integrated patient data management capabilities, enabling seamless data transfer to electronic health records (EHRs) and facilitating better communication among the care team.

User experience is prioritized in the design of the M2540, featuring a clear and intuitive display that presents vital signs in a straightforward manner. The touchscreen interface is customizable, allowing users to arrange critical data according to their preferences. This ensures that clinicians can access vital information quickly and efficiently during high-pressure situations.

The portability of the M2540 is another significant advantage. It is designed to be lightweight and easily transportable, making it ideal for use in various locations, from operating rooms to patient transport. The long-lasting battery life ensures uninterrupted monitoring, even during transfers.

In summary, the Philips M2540 is a robust patient monitoring solution that combines advanced technology with user-centric design. Its comprehensive monitoring capabilities, IntelliVue technology, and portability make it an asset in any healthcare environment, ultimately enhancing the quality of patient care and outcomes.