一、概述
GDS-50 型秒表檢定儀是一種多功能，綜合性的時(shí)間檢定自動測試裝置，它能對機(jī)械秒表、電子秒表進(jìn)行進(jìn)行檢定。本儀器采用高穩(wěn)定度石英晶體振蕩器作為時(shí)間基準(zhǔn)，用AVR 單片機(jī)和TTL 集成電路為主要元件，大屏LCD顯示，旋轉(zhuǎn)編碼開關(guān)操作，滿足JJG237-2010《秒表檢定規(guī)程》的要求，是一種較理想和實(shí)用的秒表檢定儀。
二、技術(shù)指標(biāo)
1. 測量范圍
1ms------99999.9s
2. 測量誤差
秒表：± 3ms
3. 晶體振蕩器
準(zhǔn)確度：±5×10-7/日
三、工作條件
環(huán)境溫度：0~40℃ 相對濕度：<80%
FEATURES
Comply with national regulation of calibrating.
Auto time measuring device of multi-function and high synthesis
with time base of crystal oscillator of high stability
With advanced FPGA technique and MCU integration control, quick response.
LED display with clarity interface, easy operation
suitable for metrological service, factory, academy and scientific research institution to calibrate all kinds of timer instruments
Dimension: 255mm×100mm×380mm
Weight: 4.9kg
SPECIFICATIONS
For mechanical stopwatch and electronic stopwatch calibrating
Input Range T0 1s-99999s Accuracy ＜±（1×10-7×T0＋3ms）
For pointer stopwatch calibrating
Input Range T0 Continuous: 0.1s-99999s
Trigger: 1s-99999s
Pause: 0.1s-99999s
Accuracy ＜±（Mains frequency accuracy×T0＋0.6ms）
For millisecond stopwatch and digital stopwatch calibrating
Input Range T0 1×102μs ~1×109μs Accuracy ＜±（1×10-7×T0＋3μs）
Crystal Oscillator
Nominal Frequency 10MHz Daily Aging Rate ≤5×10-9/day
Second Stability ≤1×10-10/s Accuracy ≤1×10-7
Warm Up Time 12 hour |
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