发明申请
US20120157853A1 Acoustic Transducer Incorporating an Electromagnetic Interference Shielding as Part of Matching Layers 审中-公开
声学传感器结合电磁干扰屏蔽作为匹配层的一部分

Acoustic Transducer Incorporating an Electromagnetic Interference Shielding as Part of Matching Layers
摘要:
Ultrasound probes, and methods of forming probes, with electromagnetic shielding and/or improved heat management are provided. Certain probes include an acoustic stack including an active layer, a protection face plate or lens, and a matching layer. The matching layer includes a mass layer and a spring layer. The probe further includes a cable configured to communicate signals to and from the ultrasound probe. The probe further includes an electromagnetic radiation shield comprising the mass layer. The shield encompasses the active layer and the cable, and is grounded via an electrode. The shield is configured to inhibit external electromagnetic radiation from interfering with the signals communicated to and from the ultrasound probe via the cable. Certain probes are configured such that the mass layer is thermally connected to a thermal drain or a heat sink such that heat is conducted away from the protection face plate or lens.
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