Device for Generating and Measuring Time Intervals

I. Orobets, V. Shevchenko
{"title":"Device for Generating and Measuring Time Intervals","authors":"I. Orobets, V. Shevchenko","doi":"10.33955/2307-2180(4)2019.31-33","DOIUrl":null,"url":null,"abstract":"The article suggests a device that extends the functionality of the measuring devices such as generators and frequency meters. So these devices can be used as part of working standards in a complex for verification and calibrating stopwatches. The device consists of an electronic commutator and a component controlled by a microcontroller, which forms the required intervals of time and provides a necessary connection from the generator output to the frequency counter input, turned on in the pulse counting mode. The control signal simultaneously arrives at the commutator and the device for automatic start/stop of stopwatches. The circuit design of the device allows minimizing the device’s influence on the overall metrological characteristics of the complex through the use of a high-speed controlled M74HC125 buffer (high-speed CMOS QUAD BUFFER (3-STATE)) as a switch. The M74HC125 buffer in this device is the only metrologically significant node; the state switching time of which in the aspect of this task can be ignored (Fig. 3). A computer and standard software, such as HyperTerminal from the Windows XP or PuTTY distribution, are used to control and communicate with the device. The device can be connected to the computer via USB. For laboratories that have these instruments in operation, this approach can help to avoid acquisitions of the additional reference equipment, which helps to reduce the maintenance and calibration costs of reference equipment.","PeriodicalId":52864,"journal":{"name":"Metrologiia ta priladi","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metrologiia ta priladi","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.33955/2307-2180(4)2019.31-33","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

The article suggests a device that extends the functionality of the measuring devices such as generators and frequency meters. So these devices can be used as part of working standards in a complex for verification and calibrating stopwatches. The device consists of an electronic commutator and a component controlled by a microcontroller, which forms the required intervals of time and provides a necessary connection from the generator output to the frequency counter input, turned on in the pulse counting mode. The control signal simultaneously arrives at the commutator and the device for automatic start/stop of stopwatches. The circuit design of the device allows minimizing the device’s influence on the overall metrological characteristics of the complex through the use of a high-speed controlled M74HC125 buffer (high-speed CMOS QUAD BUFFER (3-STATE)) as a switch. The M74HC125 buffer in this device is the only metrologically significant node; the state switching time of which in the aspect of this task can be ignored (Fig. 3). A computer and standard software, such as HyperTerminal from the Windows XP or PuTTY distribution, are used to control and communicate with the device. The device can be connected to the computer via USB. For laboratories that have these instruments in operation, this approach can help to avoid acquisitions of the additional reference equipment, which helps to reduce the maintenance and calibration costs of reference equipment.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
产生和测量时间间隔的装置
文章提出了一种扩展测量设备功能的设备,如发电机和频率计。因此,这些设备可以作为综合体中工作标准的一部分,用于验证和校准秒表。该设备由一个电子换向器和一个由微控制器控制的部件组成,微控制器形成所需的时间间隔,并提供从发电机输出到频率计数器输入的必要连接,在脉冲计数模式下打开。控制信号同时到达换向器和秒表自动启动/停止装置。该设备的电路设计允许通过使用高速控制的M74HC125缓冲器(高速CMOS QUAD buffer(3-STATE))作为开关,将设备对综合体整体计量特性的影响降至最低。该设备中的M74HC125缓冲器是唯一具有计量意义的节点;在该任务方面,其状态切换时间可以忽略(图3)。计算机和标准软件(如Windows XP或PuTTY发行版的HyperTerminal)用于控制设备并与设备通信。该设备可以通过USB连接到计算机。对于有这些仪器在运行的实验室,这种方法有助于避免购买额外的参考设备,这有助于降低参考设备的维护和校准成本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
审稿时长
5 weeks
期刊最新文献
State Primary Standard of Gas Volume and Flow Rate Units for the Pressure Range of 1 MPa to 5 MPa (PVTt-15) THE ARTICLE IS ELLIMINATED Evaluation of the Signal Power Spectrum in Directional Receiving Systems Non-Selective Magnetoelectric Thermal Radiation Receiver Based on Cadmium Antimonide Features, Opportunities and Application of Control Cards Accumulated Sum. Part 2. Numerical Method for Assessing the Disorder of a Technological Process
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1