一、概述
时间检定仪GDS-50是一种多功能，综合性的时间检定自动测试装置，它能对机械秒表、电子秒表进行进行检定。本仪器采用高稳定度石英晶体振荡器作为时间基准，用AVR 单片机和TTL 集成电路为主要元件，大屏LCD显示，旋转编码开关操作，满足JJG237-2010《秒表检定规程》的要求，是一种较理想和实用的秒表检定仪。
二、技术指标
1. 测量范围
1ms------99999.9s
2. 测量误差
秒表：± 3ms
3. 晶体振荡器
准确度：±5×10-7/日
三、工作条件
环境温度：0~40℃相对湿度：<80%
FEATURES
ply with national regulation ofcalibrating.
Auto time measuring device ofmulti-function and high synthesis
with time base of crystal oscillator ofhigh stability
With advanced FPGA technique and MCUintegration control, quick response.
LED display with clarity interface, easyoperation
suitable for metrological service, factory, academy and scientific researchinstitution to calibrate all kinds of timer instruments
Dimension: 255mm×100mm×380mm
Weight: 4.9kg
SPECIFICATIONS
| For mechanical watch and electronic watch calibrating | |||||||
| Input Range T0 | 1s-99999s | uracy | ＜±（1×10-7×T0＋3ms） | ||||
| For pointer watch calibrating | |||||||
| Input Range T0 | Continu: 0.1s-99999s | ||||||
| uracy | ＜±（Mains frequency uracy×T0＋0.6ms） | ||||||
| For millisecond watch and digital watch calibrating | |||||||
| Input Range T0 | 1×102μs ~1×109μs | uracy | ＜±（1×10-7×T0＋3μs） | ||||
| Crystal Oscillator | |||||||
| Nominal Frequency | 5MHz | Daily Aging Rate | ≤5×10-9/day | ||||
| Second Stability | ≤1×10-10/s | uracy | ≤1×10-7 | ||||
| Warm Up Time | 12 hours |
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