SU705253A1

SU705253A1 - Device for measuring angular displacements

Info

Publication number: SU705253A1
Application number: SU782632186A
Authority: SU
Inventors: Адольф Иванович Трофимов; Борис Моисеевич Кербель; Олег Сергеевич Шмитов
Priority date: 1978-06-20
Filing date: 1978-06-20
Publication date: 1979-12-25

Description

(54) УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ УГЛОВЫХ ПЕРЕМЕЩЕНИЙ(54) DEVICE FOR MEASURING ANGULAR DISPLACEMENTS

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Изобретение относитс к измерительной тех нике и может быть использовано дл контрол малых угловых отклонений от вертикали скважин малого диаметра.The invention relates to a measurement technique and can be used to control small angular deviations from vertical wells of small diameter.

Известны устройства дл измерени ма ьк перемещений, в которых отклонени ма тника от вертикали преобразуютс в злектрическнй сигнал 1.-; -; :- - -- . ----. . Однако такие устройства имеют низкую чувствительность.Devices for measuring small displacements are known, in which deviation from the vertical is converted into an electrical signal 1.-; -; : - - -. ----. . However, such devices have low sensitivity.

Наиболее близким техническим решением к предлагаемому вл етс устройство, которое состоит из. корпуса, размещенных в нем ма тника с мультипликатором и пьезотрансформатора , вюпоченного в схему автогенератора 2.The closest technical solution to the proposed is a device that consists of. the case, a tandem with a multiplier placed in it, and a piezotransformer, which is embedded in the circuit of the oscillator 2.

Недостатком таких устройств вл етс то, что дл пьезоэлементов характерна времейна нестабильность.,The disadvantage of such devices is that the piezoelectric elements are characterized by temporary instability.

Цель изобретени - повышение точностных харак1еристик устройства с одновременным определением направлени перемещени .The purpose of the invention is to improve the accuracy characteristics of the device while determining the direction of movement.

Указанна цель достигаетс тем, что устройство снабжено акустическим концентратором, свободный конец которого выполнен в видеThis goal is achieved in that the device is equipped with an acoustic hub, the free end of which is made in the form

упругого элемента, контактирую)цего с зу&цами выходной шестерни мультипликатора,,а также тем, что упрртий элемент выполнен в виде V-образпой пружины, плечи которой контактируют с одним из двух идентичных акустических концентраторов в зависшчости направлени отклонени ма тника. .an elastic element in contact with the teeth of the output gear of the multiplier, and also the fact that the control element is made in the form of a V-shaped spring, whose shoulders are in contact with one of two identical acoustic concentrators depending on the direction of deviation of the symbol. .

На чертеже изображено предлагаемое устройство , общий вид.The drawing shows the proposed device, a General view.

Claims

The device consists of a case I, inside of which is located a chant element 2, for example a tambour, articulator 1st with an input sector 3 of multiplier 4, whose output gear 5 at the depth of the pitch circle engages with a flexible elastic element 6 attached to an acoustic hub 7 is of a conical type, rigidly followed by a piezotransformer 8, which is fixed on the circuit board due to the clamp. The elastic element 6 is made in a vvde-shaped v-spring, the ends of the arms of which are fixed in the brackets of the circuit board in the plane of rotation of the multiplier of the multiplier. 3 The device operates as follows. The oscillator with a piezotransformer in the circuit of the feedback circuit operates in the soft excitation mode at a frequency close to the frequency of the electromechanical system consisting of a piezoelectric transformer and a rigidly connected acoustic concentrator. When the deviation of the longitudinal axis of the instrument | angular displacement of 1 tomnik is transmitted to the input element 3 of the multiplier, is amplified in accordance with the gear ratio of the multiplier mechanism and quantized on its output Nematee 5 there is an acoustic condition in the state system - there is no acoustic contact. In this case, the presence of the contact of the element b with the gear teeth 5 leads ic. the sharp increase in the acoustic nbtepb of the tcmformator, the deterioration of the quality factor of the oscillatory system, which, in turn, leads to a breakdown in the generation of the autogenerator. , - - -. i) due to the fact that the piezotransformer is operating in a relay mode, the influence of the instability of the piezoelectric element is excluded. Claim 1. Device for measuring angular displacements, Assembly body, placed in it a multiplier with a multiplier and an electric transducer made in the form of a piezotransformer included in an autogenerator circuit, characterized in that with C (5 increasing the measurement accuracy, the device is equipped acoustic contipatopoM, the free end of which is made in the form of an elastic element in contact with the teeth of the output shticot of the multiplier TOR., i. The device according to claim 1, characterized by Avyeniy displacement, the elastic element is made in the v-shaped V-shaped spring, the shoulders of which are in contact with one of two identical acoustics and concentrators depending on the direction of deviation of the silt. Sources of information that are taken into account during the examination: L Sulakshchina SS .- M., Gogogelo f6i: at, 1960, pp. 83.

2. USSR author's certificate N 558148, cl. G 01 C 9/02, 1977 (prototype).