TEMPERATURE CONTROLLED CHAMBER FOR X-RAY DIFFRACTION SPECIMENS

建造了两个新的温控室和 已评估。新的单元结合了一个线性反馈传感器 和双极电源，允许在任何温度下进行调节 在-3度之间。C和+85℃。C.设定温度为 通过3位拇指轮开关输入和示例 温度在3.5位数字显示屏上读出。时间 需要95%的回复才能达到10度。C组中的变化 温度大约是70秒。所需的时间 从0度更改为95%。C至70℃。C是 大约300秒。在平衡状态下，基线稳定性 是+/-15毫度。C.两种类型的细胞被培养成 含有正在调查的样本。第一个是简单的 将样品溶液密封在两个样品之间的封闭小室 铝电池中的Mylar晶片。第二种单元格是开放的 并且可以在运行过程中冲洗，而无需从室中取出。

Two new temperature-controlled chambers were constructed and evaluated. The new units incorporated a linear feedback sensor and bipolar power supply to allow regulation at any temperature between -3 deg. C and +85 deg. C. The set temperature is entered via a 3-digit thumb wheel switch and the sample temperature is read out on a 3 1/2 digit display. The time required for 95% response to a 10 deg. C change in the set temperature is approximately 70 seconds. The time required for 95% response to a change from 0 deg. C to 70 deg. C is approximately 300 seconds. At equilibrium, the baseline stability is +/- 15 milli-deg. C. Two types of cells were developed to contain the sample under investigation. The first is a simple closed cell in which the sample solution is sealed between two mylar wafers in an aluminum cell. The second type of cell is open and can be flushed during runs without removal from the chamber.