英语翻译Operating Ranges and Response TimesThe following table shows the radiation levels the Digilert 100 measures in each mode and how they are displayed.In some modes,when radiation levels increase over certain preset levels,the Digilert 100 u
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英语翻译Operating Ranges and Response TimesThe following table shows the radiation levels the Digilert 100 measures in each mode and how they are displayed.In some modes,when radiation levels increase over certain preset levels,the Digilert 100 u
英语翻译
Operating Ranges and Response Times
The following table shows the radiation levels the Digilert 100 measures in each mode and how they are displayed.In some modes,when radiation levels increase over certain preset levels,the Digilert 100 uses autoranging,automatically changing to the X1000 scale.Whenever X1000 is shown above
the numeric display,multiply the displayed reading by 1000 to determine the radiation level.
Maximum level.When the maximum level for the current mode is reached,the
Digilert 100 beeps for three seconds,pauses for three seconds,and repeats
that pattern.The numeric display flashes.The beeping pattern and the flashing continue until the level decreases or the Digilert 100 is turned off.
Display update and response time.In Total mode,the numeric display is
updated each second.In the dose rate modes,the numeric display is updated every three seconds.When the radiation level is less than 1,000 CPM,the reading in any of the dose rate modes is based on the radiation detected in the immediately previous minute.In order to give a quicker response to changes,when the radiation level exceeds 1,000 CPM,the reading is based on the previous 3 seconds,as shown in the following table.This automatic change in response time is called auto averaging.
Radiation level Basis for reading
1000 CPM or 1 mR/hr 3 seconds
Note:You can set the response time to 3 seconds at all radiation levels using the Utility Menu; see "The Utility Menu" in this chapter.
Taking a Timed Total Count
The Digilert 100 can give you a total count for a timed period of from one minute
to 24 hours.
A timed total count is useful for determining the average counts per minute over a period of time.The number of counts detected by the Digilert 100 varies from minute to minute due to the random nature of radioactivity.When a count is taken over a longer period,the average count per minute is more accurate,and any small increase is more significant.
Taking an average allows you to detect low-level contamination or differences in background radiation due to altitude or soil mineral content,and can be useful
for educational purposes.For example,if one 10 minute average is one count higher than another 10 minute average,the increase may be due to normal variation.But over 12 hours,a one count increase over the 12 hour background average is statistically significant.
英语翻译Operating Ranges and Response TimesThe following table shows the radiation levels the Digilert 100 measures in each mode and how they are displayed.In some modes,when radiation levels increase over certain preset levels,the Digilert 100 u
经营范围和反应时间
下表显示放射性水平的措施Digilert每100和它们是如何显示模式.在一些模式下,当辐射水平的提高,对某些预设的Digilert采用自动量程、自动改变100使用的X1000规模.每当X1000上面所示
这个数字显示,乘以显示读数1000决定辐射水平.
最高的水平.当最高水准,为当前的模式,吗
Digilert为三秒钟,100嘟嘟三秒的停顿,重复
这种模式.这个数字显示的闪光.这个发出蜂鸣声模式和闪烁的持续下降,直到水平或Digilert 100打退堂鼓.
展示更新和反应时间.在总模式,这个数字显示
最新的每一秒.在剂量率模式,这个数字显示每3秒更新.当辐射水平低于1000图、阅读任何的剂量率辐射模式是基于以检测前一分钟马上.为了给了快速的反应来改变时,辐射水平超过1000 CPM,阅读是建立在前3秒,详见下表.这个自动变化的响应时间被称为汽车平均.
依据辐射水平阅读
《千CPM或1先生/小时1分钟
大于1000 CPM或1先生/人力资源3秒
注意:你可以设置的响应时间3秒,在所有的辐射水平的用途使用菜单,菜单”的效用.
以一个定时总计数
这个Digilert 100,可以给你一个预先计算总数的从一分钟
24小时.
一个定时总数是有用的确定平均每分钟计数经过一段时间的.这个数字Digilert能探测到的每分钟100个不同的随机放射性的.当一个计数接管了很长的一段时间,平均每分钟计数更加精确,小的增加更为重要.
允许你以平均低污染的检测和背景的差异辐射由于高度或土壤矿物质含量,并可能是有用的
教育的目的.例如,如果一个10分钟数高于平均是另一个10分钟的平均增长可能由于正常变异.但是超过12小时,过去12个小时数增加平均有统计学意义的背景.
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