Cannon Instrument Company® 通过提供用于表征粘度、流变学和其他物理特性的最优质仪器、服务和经认证的参考材料，为我们的客户创造价值。在 Cannon Instrument Company，我们努力成为粘度和物理特性表征领域值得信赖的世界领先者。
我们位于美丽的宾夕法尼亚州中部，距宾夕法尼亚州立大学仅数分钟路程，与大学公园机场隔街相望。从我们的户外露台可以欣赏到连绵起伏的山脉的壮丽景色，我们很高兴看到我们的公司在这个可爱的国家发展壮大。
在 1930 年代，宾夕法尼亚州立大学的两位化学工程教授 Michael Cannon 博士和 Walter Fenske 博士开始了一项表征石油产品物理特性的研究项目。
他们使用 Ostwald 手动玻璃粘度计测量运动粘度，这是当时的常用粘度计。然而，他们在与粘度计相关的测量误差中挣扎。教授们发现，恒温槽内粘度计的轻微倾斜会影响粘度测量的准确性，这个问题源于流出容器（较大的粘度计灯泡）与定时灯泡（较小的粘度计）处于不同的垂直平面电灯泡）。
Cannon 博士和 Fenske 博士推测他们可以通过弯曲粘度计来解决这个问题。因此，Cannon 博士要求宾夕法尼亚州立大学的玻璃厂（为该大学的化学系制造科学玻璃器皿）将几个 Ostwald 粘度计弯曲成他认为可以消除垂直对齐问题的几何形状。Cannon 博士在他的大学实验室进行了一些反复试验后，创建了一个原型粘度计，可提供所需的结果。这种新的粘度计几何结构后来被称为 Cannon-Fenske 常规粘度计。
Cannon Instrument Company® delivers value to our customers by providing the highest quality instruments, services, and certified reference materials for the characterization of viscosity, rheology and other physical properties. At Cannon Instrument Company, we strive to be the trusted world leader in viscosity and physical property characterization.
We are located in beautiful Central Pennsylvania, minutes from Penn State University and conveniently across the street from University Park Airport. With exceptional views of rolling mountains from our outdoor patio, we are pleased to see our company growing and thriving in this lovely part of the country.
In the 1930’s, two Penn State University Chemical Engineering professors, Dr. Michael Cannon and Dr. Walter Fenske, began work on a research project characterizing the physical properties of petroleum products.
They measured kinematic viscosity using the Ostwald manual glass viscometer, the common viscometer for the time. However, they struggled with measurement errors associated with the viscometer. The professors discovered that a slight tilt of the viscometer within the constant temperature bath affected the accuracy of the viscosity measurement, an issue stemming from the out-flow reservoir (larger viscometer bulb) being in a different vertical plane as the timing bulb (smaller viscometer bulb).
Dr. Cannon and Dr. Fenske theorized that they could resolve this issue by bending the viscometer. So Dr. Cannon asked Penn State’s glass shop, which made scientific glassware for the university’s chemistry department, to bend several Ostwald Viscometers into a geometry that he believed would eliminate the vertical alignment problems. After some trial and error in his university laboratory, Dr. Cannon created a prototype viscometer that provided the desired results. This new viscometer geometry later became known as the Cannon-Fenske Routine Viscometer.
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