GB/T 19705-2017 in English
VALIDSignals and interfaces for hydrometry instruments
- Issued on:2017-11-01
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$175.00
《GB/T 19705-2017水文仪器信号与接口》由332（水利部）归口，主管部门为水利部。
Introduction
GB/T 19705—2017 Interpretation of Hydrological Instrument Signal and Interface Standard
This standard specifies the definition, classification, technical requirements and test methods of signals and interfaces between sensors and display, recording or data transmission equipment in hydrological instruments, and between hydrological instruments and other automation system equipment.
Comparison of standard frameworks
| Standard dimensions | Contents of the old version | Additions and changes in the new version | Scope of application |
|---|---|---|---|
| Signal classification | Not divided in detail | Classified by information flow, information source mechanism, and presentation form | All hydrological instrument signal transmission |
| Interface type | Only serial and parallel interfaces | New frequency, network, optical fiber and other interfaces | Automation system equipment integration |
| Technical requirements | General anti-interference measures | \nIncrease the transmission distance of sensor output signal and bus interface specifications | Adaptability to underwater and above-water environments |
Analysis of professional terms and application cases
Signal
A physical phenomenon that represents information, including voltage, current, frequency and other forms.
Practical application:The rotor velocity meter outputs a pulse signal to measure the water flow rate.
Interface
A collection of hardware and software for communication between devices, supporting multiple connection methods such as serial and parallel.
Practical application:The tipping bucket rain gauge outputs a rainfall signal through the reed switch contact and connects to the display device.
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