RU50298U1 - DIGITAL TILT ANGLE METER DEVICE - Google Patents

Abstract

The proposed utility model relates to measuring equipment and can be used in systems for determining the angle of inclination of various devices and objects, for example, in industrial and civil engineering, as well as test equipment. The device comprises a housing, inside of which there is an electronic circuit for converting the signal of the tilt angle sensor, issuing an electrical signal in the form of a voltage determined by the value of the measured tilt angle. An LCD is located on the front surface of the housing, configured to indicate a slope value along two coordinate axes. The LCD is connected to an electronic signal conversion circuit. The electronic signal conversion circuit is made in the form of an operational amplifier, an ADC, a stabilized power supply, and a display unit for measuring modes. The novelty is that the angle sensor is located outside the device and is connected to it by cable. On the front surface of the case is an alphanumeric keyboard for selecting operating modes. The electronic circuit includes a microcontroller, made with the ability to control various operating modes through an alphanumeric keyboard. The housing has slots for connecting a communication cable with an external computer and an external power source. The technical result consists in providing monitoring of measurements when installing a tilt angle sensor in hard-to-reach places, in the convenience of selecting and controlling various operating modes, in storing the received data, in obtaining comprehensive information about the tilt angles of the object, in improving the accuracy of measurements.

Description

The proposed utility model relates to measuring equipment and can be used in systems for determining the angle of inclination of various devices and objects, for example, in industrial and civil engineering, as well as test equipment.

Known digital tilt angle meter (Russia, invention, patent No. 2166732, IPC ⁷ G 01 C 1/09, publ. 05/10/2001). The known device comprises a housing, inside of which there is a tilt angle sensor and an electronic signal conversion circuit. The tilt angle sensor is made in the form of a two-coordinate acceleration meter that produces an electrical signal in the form of a voltage determined by the value of the measured tilt angle. On the front surface of the housing is a liquid crystal display (LCD) and a mechanical switch of measurement modes. The LCD is configured to simultaneously indicate the direction and slope value alternately along one of the two coordinate axes. The electronic signal conversion circuit is made in the form of an operational amplifier connected in series, an analog-to-digital converter (ADC), a unit for indicating measurement modes, a stabilized power source connected via a power switch and an ADC to a tilt angle sensor and an operational amplifier. One input of the LCD is connected directly to the ADC, and the second through the display unit for measuring modes, the input of which is connected to the output of the measurement coordinate switch connected to both outputs of the angle sensor to the angle sensor. The known device contains the following features that match the essential features of the proposed utility model:

- a housing, inside of which there is an electronic circuit for converting the signal of the tilt angle sensor, issuing an electrical signal in the form of a voltage determined by the value of the measured tilt angle;

- on the front surface of the housing of the LCD, made with the possibility of indicating the magnitude of the slope along two coordinate axes;

- LCD connected to an electronic signal conversion circuit;

- the electronic signal conversion circuit is made in the form of an operational amplifier, ADC, a stabilized power source, an indication unit for measurement modes.

The known device described above is the closest analogue of the proposed utility model.

The disadvantages of the closest analogue include the following:

1. The complexity of monitoring measurements in cases of installing the angle sensor in hard-to-reach areas of the object due to the fact that the angle sensor is installed inside the device. 2. Limited ability to control the operating modes of the device due to the fact that in the known device in the electronic signal conversion circuit there is no microcontroller that allows program control of various operating modes; 3. Limited information about the position of the investigated object, since on the LCD information about the angles of inclination of the object relative to the coordinate axes is displayed alternately. 4. Using a morally obsolete means of entering operating modes (in the closest analogue, for example, information about the measured angles of inclination of an object relative to the coordinate axes), which is a mechanical switch. 5. The accuracy of measuring angles is limited, as it is ensured only by the accuracy of the used angle sensor.

The task to which the proposed utility model is directed is to expand the functionality with the convenience of managing operating modes.

The solution to this problem is achieved by the fact that the device of the digital tilt angle meter comprises a housing, inside of which there is an electronic circuit for converting the signal of the tilt angle sensor, which generates an electric signal in the form of a voltage determined by the value of the measured tilt angle. An LCD is located on the front surface of the housing, configured to indicate a slope value along two coordinate axes. The LCD is connected to an electronic signal conversion circuit. The electronic signal conversion circuit is made in the form of an operational amplifier, an ADC, a stabilized power supply, and a display unit for measuring modes.

The difference from the closest analogue is that the angle sensor is located outside the device and connected to it via a cable. On the front surface of the case is an alphanumeric keyboard for selecting operating modes. The electronic circuit includes a microcontroller configured to control operating modes through an alphanumeric keyboard.

In addition, the housing has slots for connecting a communication cable with an external computer and an external power source.

In addition, the microcontroller is configured to control the process of entering digital coefficients for a tilt angle sensor, recording digital coefficients and measured tilt angles in the memory of the device and / or an external computer, and inputting conversion coefficients.

The technical result of the proposed utility model is:

- providing measurement control in cases of installing the angle sensor in hard-to-reach places, due to the fact that the angle sensor is installed outside the device and is electrically connected to it;

- ease of selection and control of various operating modes through the use of an alphanumeric keyboard and the inclusion of a microcontroller in an electronic circuit;

- saving the received data in the memory of the device and / or external computer;

- obtaining comprehensive information about the angles of inclination of the object, since the LCD displays information simultaneously about two angles of inclination, measured along two mutually perpendicular coordinate axes;

- improving the accuracy of measurements due to the introduction of an electronic microcontroller in the electronic circuit, which processes the signal of the angle sensor using a more accurate method.

The essence of the utility model is illustrated by drawings.

Figure 1 presents a General view of the device digital tilt angle meter;

Figure 2 shows a structural diagram of a device for a digital slope meter.

The device comprises a housing 1, on the front surface 2 of which an LCD 3 is installed for indicating the measured tilt angles and an alphanumeric keyboard 4 for selecting operating modes (Fig. 1). On the rear surface of the housing 1 there are sockets for connecting an angle sensor 5, an external power source 6 and an external computer 7 located remotely and connected to the device via cables (Fig. 2, sockets and cables are not shown conventionally). Inside the housing 1 are placed (figure 2):

- the control unit of the angle sensor 8, including operating amplifier, stabilizers and angle converter; - information processing unit 9, including an ADC and microcontroller;

- block display modes 10;

- internal power source (not shown conditionally).

An internal power source is used for a portable embodiment of the device. The operation of the internal power source is provided by stabilizers located in the control unit of the angle sensor 8.

The device operates as follows.

Before starting work, the angle sensor is mounted on the object, the angle of which must be determined. The device is connected to a tilt sensor 5 and to an external computer 7 using cables. Depending on the embodiments, the device is connected either to an external power source 6 or to an internal power source. After switching on, two conversion coefficients of the characteristics of the tilt angle sensor 6 are entered by pressing the numeric keys on the alphanumeric keyboard 4. Then, after pressing the “Measurement” key, the LCD displays 3 simultaneously displaying the angle values along two mutually perpendicular coordinate axes. If desired, by pressing the Record key, the value of the tilt angles and conversion coefficients of the characteristics of the tilt sensor can be written to the device’s memory or stored in the memory of an external computer 7.

The proposed utility model is used in the manufacture of total stations (models 3Та5 and 3Та5Р) to monitor the installation of the inclination sensor of the liquid-pendulum type, which generates an electrical signal in the form of a voltage that is installed inside the column of the total station.

Claims (3)

1. The device is a digital tilt angle meter, comprising a housing, inside of which there is an electronic circuit for converting the signal of the tilt angle sensor, generating an electrical signal in the form of a voltage determined by the value of the measured tilt angle, a liquid crystal indicator is arranged on the front surface of the housing, configured to indicate the amount of tilt by two axes of coordinates, the liquid crystal indicator is connected to an electronic signal conversion circuit made in the form of an operational amplifier fir-tree, analog-to-digital converter, stabilized power supply and measuring mode indication unit, characterized in that the angle sensor is located outside the device and connected via cable, the alphanumeric keyboard for selecting operating modes is located on the front surface of the device, and an electronic circuit a microcontroller is included, configured to control operating modes by means of an alphanumeric keyboard. 2. The device according to claim 1, characterized in that the housing has slots for connecting a communication cable with an external computer and an external power source. 3. The device according to claims 1 and 2, characterized in that the microcontroller is configured to control the process of entering digital coefficients for a tilt angle sensor, recording digital coefficients and measured tilt angles in the device and / or external computer, and input conversion coefficients.