ABSTRACT
Static and dynamic calibration techniques, as well as environmental and durability test procedures are discussed. Reference is made to on-going work at the National Bureau of Standards, as well as to the standardization activities of professional societies. Enough evidence has accumulated to indicate that transducers and biomedical measuring systems have certain performance limitations. In addition, there is really not enough knowledge about their performance in many instances. This is particularly true for pressure transducers. Dynamic calibration of the transducer. This is necessary because these devices rarely ever sense anything but dynamic phenomena; therefore, one must know how the pressure transducer responds to nonstatic pressures. The environment in which the transducer operates during measurement may have a significant effect on the capability of the transducer to perform that measurement. Humidity has effects on semiconductor transducers, partly because of the fact that it may generate corrosion inside the transducer. Transducer evaluation is a complex, time-consuming, and very expensive process.
