发明名称 |
HIGH-FREQUENCY LEVEL MEASURING INSTRUMENT |
摘要 |
FIELD: physics, measurements. ^ SUBSTANCE: invention relates to contactless measurements of level of various physical media and can be used in automated control systems of technological processes. The high-frequency level measuring instrument contains the self-oscillator of harmonic oscillations incorporating a parallel inductance-capacitance oscillatory circuit with its sensitive element representing a transmitting aerial, a phase indicator measuring shift of phases between current and voltage at the device input, an amplifier acting as a buffer in the circuit "self-oscillator - sensitive element" and preventing frequency shift and failure of self-oscillations, and a resistance indicator located and connected in parallel with the said phase indicator. Note also that the proposed level measuring instrument comprises a computer to define a computing impedance of the aerial with due allowance for data signals from the phase indicator of a phase and the resistance indicator. The resulted readings of the latter allow a contactless continuous current level measurement. ^ EFFECT: contactless continuous measurement of current level. ^ 1 dwg |
申请公布号 |
RU2348016(C1) |
申请公布日期 |
2009.02.27 |
申请号 |
RU20070121631 |
申请日期 |
2007.06.08 |
申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA VORONEZHSKIJ GOSUDARSTVENNYJ ARKHITEKTURNO-STROITEL'NYJ UNIVERSITET - GOU VPO VGASU |
发明人 |
USTINOV JURIJ FEDOROVICH;AVDEEV JURIJ VALENTINOVICH;KONONOV ALEKSANDR DAVIDOVICH;KONONOV ANDREJ ALEKSANDROVICH;IVANOV SERGEJ ALEKSANDROVICH |
分类号 |
G01F23/28 |
主分类号 |
G01F23/28 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|