SU1525471A2 - Device for measuring volume of bodies - Google Patents

Abstract

This invention relates to a measurement technique. In order to expand the functionality, the device contains two pressure sensors 10, 11 located in the piston 8 and rod 9 cavities of the measuring cylindrical chamber 3 with the piston 4 and the rod 5, and two channels 6 and 7 with pneumatic valves 12 and 13 connecting these cavities with a receiving chamber 1 in which the measured bodies are placed. Due to this, balancing of the measuring circuit and the possibility of intermittent operation of the device are achieved, the time spent per measurement is reduced. 1 il.

Description

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(61) 627335

(21) 4328006 / 2A-IO

(22) 11/16/87

(46) 11/30/89. Bul № 44 (75) S.N. Harmonnikov

(53) 531.73 (088.8)

(56) USSR Copyright Certificate No. 627335, cl. G 01 F 17/00, 1976.

(54) DEVICE FOR MEASURING BODIES

(57) The invention relates to a measurement technique. In order to expand the functionality, the device contains two pressure sensors 10, II located in the piston 8 and rod 9 cavities of the measuring cylindrical chamber 3 with pistons 4 and rod 5, and two channels 6 and 7 with pneumatic valves 12 and 13 connecting these cavities with a receiving chamber 1 in which the measured bodies are placed. Due to this, balancing of the measuring circuit on the possibility of intermittent operation of the device is achieved, the time spent per measurement is reduced. 1 il.

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The invention relates to the experimental technique, namely the measurement of the volume of bodies, and is additional to the author. St. No. 627335.

The purpose of the invention is the expansion of functional capabilities.

The drawing shows a diagram of the proposed device.

The device contains a receiving chamber 1 with a lid 2, a measuring cylindrical chamber 3 with a piston 4 and a rod 5 inserted from the chamber and equipped with a graduated scale (not shown). The channels 6, 7 communicate the chamber 1 with the piston 8 and the rod 9 cavities of the chamber 3, respectively. Pressure sensors 10 and 11 are connected to both cavities of chamber 3, and pneumatic valves 12 and 13 are placed in channels 6, 7.

The device works as follows.

The measured bodies are placed in the receiving chamber 1, after which the lid 2 is tightly closed. In the initial position, the piston 4 of the chamber 3 is in position 2-2, the pneumatic valve 12 is open, and the pneumatic valve 13 is closed. The readings of the pressure sensor 10 are read, after which the piston 4 is moved to the position 1-1. From this point on, the intermittent operation of the device begins.

Close valve 12 and open valve 13. Read the pressure sensor 11. The piston 4 is moved to the position 2-2 and at the same time the readings of the pressure sensor 10 are monitored. When the initial pressure is reached, no pressure in the piston cavity 8

irponTBcjjiHT reads the volume of the sample to be measured by an ottarir1) scale. The piston is brought to position 2-2, the valve 13 is closed and the valve 12 is opened. When the piston 4 is re-moved to position 1-1, the pressure sensor 11 reads and, when the initial pressure reaches 9, the second pressure is generated. reading the volume of the sample to be measured.

The piston 4 is brought to the position 1-1, after which subsequent measurements are carried out according to the described scheme.

Thus, by using the symmetric scheme of the device, its periodic intermittent operation is provided, the time spent per measurement is reduced. This expands the functionality of the device and makes it possible to use it to accurately measure the volume of bodies in the presence of leaks, gas and mass transfer, chemical reactions, etc.

Claims (1)

30 claims Device for measuring the volume of bodies in the ed. St. No. 627335, characterized in that, in order to expand its functionality, it is provided with a second channel with a pneumatic valve connecting the receiving chamber with the rod end of the measuring cylindrical chamber and the second pressure sensor located in the latter.