A biomedical sensor , comprising: a deformable body panel ; at least one first ultrasonic transducer attached to the deformable body panel; at least one second ultrasonic transducer attached to the deformable body panel; and at least one displacement sensor in communication with the deformable body panel; wherein the biomedical sensor is disposable in at least one default configuration wherein the at least one first ultrasonic transducer and the at least one second ultrasonic transducer are disposed relative to one another in a known first spatial transducer configuration; wherein the biomedical sensor is disposable in one or more deformed configurations wherein the at least one first ultrasonic transducer and the at least one second ultrasonic transducer are disposed relative to one another in a second spatial transducer configuration different than the known first spatial transducer configuration; wherein the at least one displacement sensor is configured to produce signal information indicative of a difference between the known first spatial transducer configuration and the second spatial transducer configuration; and wherein the at least one displacement sensor comprises a plurality of strain sensors comprising a first strain sensor extending in a lengthwise direction between a first point (A) and a second point (B), a second strain sensor extending in a lengthwise direction between a third point (C) and a fourth point (D), a third strain sensor extending in a widthwise direction between the first point (A) and the fourth point (D), a fourth strain sensor extending in a widthwise direction between the second point (B) and the third point (C), a fifth strain sensor extending between the first point (A) and the third point (C), diagonal to the lengthwise and widthwise directions, and a sixth strain sensor extending between the second point (B) and the fourth point (D), diagonal to the lengthwise and widthwise directions. a deformable body panel ; at least one first ultrasonic transducer attached to the deformable body panel; at least one second ultrasonic transducer attached to the deformable body panel; and at least one displacement sensor in communication with the deformable body panel; wherein the biomedical sensor is disposable in at least one default configuration wherein the at least one first ultrasonic transducer and the at least one second ultrasonic transducer are disposed relative to one another in a known first spatial transducer configuration; wherein the biomedical sensor is disposable in one or more deformed configurations wherein the at least one first ultrasonic transducer and the at least one second ultrasonic transducer are disposed relative to one another in a second spatial transducer configuration different than the known first spatial transducer configuration; wherein the at least one displacement sensor is configured to produce signal information indicative of a difference between the known first spatial transducer configuration and the second spatial transducer configuration; and wherein the at least one displacement sensor comprises a plurality of strain sensors comprising a first strain sensor extending in a lengthwise direction between a first point (A) and a second point (B), a second strain sensor extending in a lengthwise direction between a third point (C) and a fourth point (D), a third strain sensor extending in a widthwise direction between the first point (A) and the fourth point (D), a fourth strain sensor extending in a widthwise direction between the second point (B) and the third point (C), a fifth strain sensor extending between the first point (A) and the third point (C), diagonal to the lengthwise and widthwise directions, and a sixth strain sensor extending between the second point (B) and the fourth point (D), diagonal to the lengthwise and widthwise directions. <EOS>