德州仪器公司(位于美国德克萨斯州的Dallas),长期以来一直在从事解决过程控制和质量控制中的关键问题,近来成功地开发了称为Spreeta的,一种可以实时进行的、液体分析用的敏感器件;它可以在现场进行液体分析。液态介质的质量控制,在大多数情况下都需要在中心实验室进行样品分析。由于送交样品去化验,需要经过一定的旅程,耗费相当的时间,可能引起分析结果不精确。通常延误的时间可能使样品变质,运送样品也可能增加样品损坏和丢失的机会。 Spreeta敏感器件可以测出与其敏感表面接触的液体的折射系数。此测量方法是依据所谓的“表面胞间谐振(surface plasmon resonance)”原理进行的。当Spreeta敏感器件和适当的DSP芯片(具有一定的编码、解码功能)相连接时,可以检测出物质的某些性质,如香味和纯度等。此外,该器件还可以检测确定许多物质,从蛋白质 Texas Instruments Incorporated (Dallas, TX, USA), which has long been engaged in solving key problems in process control and quality control, has recently succeeded in developing a real-time liquid analysis called Spreeta Sensitive device for use; it performs liquid analysis in the field. Quality control of liquid media requires, in most cases, sample analysis in a central laboratory. Due to the delivery of samples to test, it takes a certain journey, takes a considerable time, may lead to inaccurate analysis results. Often times of delaying may degrade the sample, and transporting the sample may also increase the chances of sample damage and loss. Spreeta-sensitive devices measure the refractive index of liquids in contact with their sensitive surfaces. This measurement method is based on the so-called “principle of surface plasmon resonance”. When Spreeta sensitive devices and the appropriate DSP chip (with a certain coding, decoding function) connected to detect some of the properties of the material, such as flavor and purity. In addition, the device can detect many substances identified from the protein