RU94010739A - Density metering device - Google Patents

Density metering device

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Publication number
RU94010739A
RU94010739A RU94010739/25A RU94010739A RU94010739A RU 94010739 A RU94010739 A RU 94010739A RU 94010739/25 A RU94010739/25 A RU 94010739/25A RU 94010739 A RU94010739 A RU 94010739A RU 94010739 A RU94010739 A RU 94010739A
Authority
RU
Russia
Prior art keywords
piezotube
inductance coils
sensor
density
measuring
Prior art date
Application number
RU94010739/25A
Other languages
Russian (ru)
Other versions
RU2069344C1 (en
Original Assignee
Научно-исследовательский испытательный комплекс Центр НТТ "Эксперимент"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Научно-исследовательский испытательный комплекс Центр НТТ "Эксперимент" filed Critical Научно-исследовательский испытательный комплекс Центр НТТ "Эксперимент"
Priority to RU94010739A priority Critical patent/RU2069344C1/en
Publication of RU94010739A publication Critical patent/RU94010739A/en
Application granted granted Critical
Publication of RU2069344C1 publication Critical patent/RU2069344C1/en

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  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

FIELD: measurement technology; measuring density of various suspensions by hydrostatic method using piezoelectric device. SUBSTANCE: air-tight chamber is made in the form of conical bell; sensor is placed in metering part of piezotube and made in the form of hollow cylinder with set of serially arranged light-current inductance coils; float is provided with pole shader; recorder is, essentially, interrogating and scaling electronic circuit; device parameters are selected proceeding from conditions given in description of invention. Electronic recording circuit can be monitored in the course of operation of device; to this end, sensor is made as removable unit and metering part of piezotube bears scale divisions corresponding to spacing between inductance coils. Device may be provided with second piezotube in which case respective inductance coils of sensors of both piezotubes are electrically connected into half-bridge circuit. EFFECT: simplified density measurement procedure. 4 cl, 5 dwg

Claims (1)

Изобретение относится к измерительной технике и предназначено для измерения плотности различного рода суспензий гидростатическим методом с помощью пьезоэлектрического прибора. Цель изобретения - упрощение процесса измерения плотности. Цель достигается тем, что герметичная камера выполнена в виде раструба конической формы, датчик расположен на мерной части пьезотрубки и выполнен в виде полого цилиндра с набором последовательно расположенных слаботочных катушек индуктивности, поплавок снабжен короткозамкнутым витком, а регистратор выполнен в виде опросно-пересчетной электронной схемы, при этом параметры устройства выбраны исходя из условий: Sм/Sп≥200; L = 0,01H; lк = lв = 0,5L, где Sм - площадь эластичной мембраны; Sп - площадь сечения пьезотрубки; H - база (глубина погружения) пьезотрубки; L - шаг между катушками индуктивности; lк - высота катушки индуктивности; lв - высота короткозамкнутого витка. С целью обеспечения проверки регистрирующей электронной схемы непосредственно в процессе работы устройства датчик может быть выполнен съемным, а на мерной части пьезотрубки нанесена шкала делений, соответствующих значению шага между катушками индуктвности. Устройство может быть снабжено второй пьезотрубкой, при этом соответствующие катушки индуктивности датчиков обеих пьезотрубок соединены в электрическом отношении в полумост. 3 п.ф-лы, 5 ил.The invention relates to measuring technique and is intended to measure the density of various kinds of suspensions by the hydrostatic method using a piezoelectric device. The purpose of the invention is to simplify the process of measuring density. The goal is achieved by the fact that the sealed chamber is made in the form of a cone-shaped bell, the sensor is located on the measured part of the piezotube and is made in the form of a hollow cylinder with a set of low-current inductance coils in series, the float is equipped with a short-circuited coil, and the recorder is made in the form of an interrogating-electronic circuit, wherein the device parameters are selected based on the conditions: S m / S p ≥200; L = 0.01H; l to = l in = 0,5L, where S m - the area of the elastic membrane; S p - the cross-sectional area of the piezotube; H is the base (immersion depth) of the piezotube; L is the pitch between the inductors; l to - the height of the inductor; l in - the height of the closed loop. In order to ensure verification of the recording electronic circuitry directly during operation of the device, the sensor can be made removable, and a scale of divisions corresponding to the step value between the inductance coils is plotted on the measuring part of the piezotube. The device can be equipped with a second piezotube, while the corresponding inductance coils of the sensors of both piezotubes are electrically connected in a half-bridge. 3 pp., 5 ill.
RU94010739A 1994-03-29 1994-03-29 Device measuring density RU2069344C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94010739A RU2069344C1 (en) 1994-03-29 1994-03-29 Device measuring density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94010739A RU2069344C1 (en) 1994-03-29 1994-03-29 Device measuring density

Publications (2)

Publication Number Publication Date
RU94010739A true RU94010739A (en) 1996-04-20
RU2069344C1 RU2069344C1 (en) 1996-11-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU94010739A RU2069344C1 (en) 1994-03-29 1994-03-29 Device measuring density

Country Status (1)

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RU (1) RU2069344C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2755395C1 (en) * 2020-03-13 2021-09-15 Общество с ограниченной ответственностью "Монторем" Density measurement complex

Also Published As

Publication number Publication date
RU2069344C1 (en) 1996-11-20

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