Cronos宽带地震计
CRONOS is the latest generation of a versatile portable
Broadband Seismometer that combines very-low noise over
a wide bandwidth, ultra-low power consumption, easy installation
and a compact design. Cronos是最新一代通用便携宽带地震计，它在甚宽频带是保持甚低噪声、超低功耗、易于安装，并设计紧凑。
CRONOS is well suited for local, regional, and teleseismic
recording from both posthole and vault installations. Cronos很适合安装在井孔和地下洞穴中，进行本地、区域及遥测地震记录。
The background noise levels of the CRONOS is below the
USGS LNM from 300 s to 10 Hz (vertical) while incorporating
the latest ultra-low power technology with an average power
requirement of less than 0.5w. Cronos采用平均功率需求低于0.5瓦的最新超低功率技术，它自300秒至10赫兹（竖向）的背景噪声水平是在美国地质勘查局的LNM低噪音模式的规定以下。
This truly portable seismometer comes with a robust automatic
mass locking and unlocking feature, designed to prevent
unintentional damage during field operations and transportation.这是真正的便携地震计，具有坚固的自动质量锁定及去除锁定特性，设计用以防止在野外现场操作和运输中可能发生的没有意识到的损害。
特性：
1. Very
Broad Band Triaxial Seismometer 甚宽带三轴向地震计
2. Mass Position & Velocity Outputs 质量位置和速度输出：1500 V.s/m
diff. over 120 s – 50 Hz, 40 V pp
3. Below USGS LNM between 300 s to 10 Hz
自300秒至10赫兹（竖向）的背景噪声水平是在USGS LNM规定以下, -195 dB rel. 1 m2/s4/Hz
at 10 s
4. Utlra-Low Power Consumption 超低功耗< 0.5 W
5.Portable, Small Package,
Post-hole ready便携、小包装、可用于井孔:
6. 6” (15 cm) x H 11.5” (29 cm)
7.Robust Automatic Mass Locking, Unlocking and mass centering.
Allows users to simply connect, orient and level to be ready
for operation健全的自动质量锁定、去除锁定及质量调中，允许用户简单地连接、定向及调平以供运行。
8.Laser Oriented 激光定向
9.Improved casing design, reducing effects of temperature,
pressure and magnetic field fluctuations 改进外壳设计，减少温度、压力、及磁场影响
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