Vibration measuring pen

Abstract

The utility model provides a vibration testing pen, which comprises a pen type casing body, a testing controller is arranged in the pen type casing body, a vibration sensor is arranged at the front end of the pen type casing body, the testing controller is connected with and controls the vibration sensor, the testing controller comprises a low-power-consumption MCU (Microprogrammed Control Unit), and the low-power-consumption MCU is connected with the pen type casing body. The low-power-consumption MCU is connected with an LCD display circuit and a charge amplification circuit, the vibration sensor is connected to the low-power-consumption MCU through the charge amplification circuit, the low-power-consumption MCU is connected with a digital and analog power supply circuit, and the digital and analog power supply circuit is connected with a battery. An MCU program is used for replacing a traditional vibration measuring circuit, carrying is convenient, and measured values can be checked on site.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical vibration state signal collection technical field, concretely is a kind of vibration pen. BACKGROUND

[0002] There are many kinds of vibration measuring instruments, including portable vibration meter, wireless vibration sensor, online vibration monitoring instrument. Different types of vibration measuring instruments are suitable for different application scenarios. However, the current vibration measuring instrument is large in size, and is inconvenient to use. CONTENT OF UTILITY MODEL

[0003] The utility model solves the technical problem in the prior art to provide a vibration pen to solve the problems raised in the above background.

[0004] The utility model solves the technical problem by adopting the following technical scheme: a vibration pen, comprising: a pen-shaped casing body, a test controller is arranged in the pen-shaped casing body, a vibration sensor is arranged at the front end of the pen-shaped casing body, the test controller is connected to control the vibration sensor, the test controller comprises a low-power MCU, an LCD display circuit and a charge amplification circuit are connected to the low-power MCU, the vibration sensor is connected to the low-power MCU through the charge amplification circuit, a digital and analog power supply circuit is connected to the low-power MCU, a battery is connected to the digital and analog power supply circuit, the vibration sensor is a charge output type vibration sensor, the vibration sensor becomes a voltage signal through the charge amplification circuit on the circuit board, the signal is sampled by the internal bit ADC of the MCU, a group of sampling waveform data is obtained, and then digital filtering, digital integration and other operations are performed in the MCU to obtain a vibration measurement value.

[0005] Further, an LCD display is arranged on the pen-shaped casing body, the LCD display is installed at the front end of the pen-shaped casing body, and the LCD display is connected to the test controller.

[0006] Further, a key is arranged on the pen-shaped casing body, the key is installed at the front end of the pen-shaped casing body, and the key is connected to the test controller.

[0007] Further, the key comprises two keys, one is a power-on / off key, and the other is a measurement key.

[0008] Further, the LCD display is a segment code type LCD, and displays a measurement value and battery capacity information.

[0009] Compared with the prior art, the utility model has the beneficial effects that: the utility model simplifies circuit design, replaces the traditional vibration measurement circuit with an MCU program, is convenient to carry, and can view the measurement value on site. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is a structural schematic view of the utility model.

[0011] Fig. 2 It is a test controller structure principle view of the utility model.

[0012] Fig. 3 It is a vibration sensor circuit schematic view of the utility model.

[0013] Fig. 4 It is a digital integral algorithm function block diagram of the utility model. DETAILED DESCRIPTION

[0014] In order to make the implementation technical means, creation features, achieve purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific drawings, and it should be noted that, in the description of the utility model, unless explicitly defined and limited, the terms "mounting", "connection" and "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection, which can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediate medium, or internal communication of two elements.

[0015] Example 1

[0016] As shown in Figs. 1-3 A vibration measuring pen, comprising: a pen type shell body 101, a test controller is arranged in the pen type shell body 101, a vibration sensor 104 is arranged at the front end of the pen type shell body 101, the test controller is connected to control the vibration sensor 104, the test controller comprises a low-power MCU, an LCD display circuit and a charge amplification circuit are connected to the low-power MCU, the vibration sensor 104 is connected to the low-power MCU through the charge amplification circuit, a digital and analog power supply circuit is connected to the low-power MCU, a battery is connected to the digital and analog power supply circuit, the vibration sensor 104 is a charge output type vibration sensor, the vibration sensor 104 is changed into a voltage signal through the charge amplification circuit on the circuit board, the signal is sampled by a 16-bit ADC in the MCU, a group of sampling waveform data is obtained, then digital filtering, digital integration and other operations are carried out in the MCU to obtain a vibration measurement value.

[0017] Example 2

[0018] As shown in Figs. 1-3As shown in the figure, a kind of vibration measuring pen, comprising: pen type shell body 101, test controller is equipped in the pen type shell body 101, vibration sensor 104 is equipped at the front end of the pen type shell body 101, the test controller is connected to control vibration sensor 104, the test controller includes low-power MCU, LCD display circuit, charge amplification circuit are connected on the low-power MCU, vibration sensor 104 is connected to low-power MCU by charge amplification circuit, digital and analog power supply circuit is connected on the low-power MCU, battery is connected on the digital and analog power supply circuit, LCD display 103 is equipped on the pen type shell body 101, the LCD display 103 is installed at the front end of pen type shell body 101, and the LCD display 103 is connected to test controller.The LCD display is segment code type LCD, and display measurement value and battery capacity information.

[0019] Embodiment 3

[0020] As Figs. 1-3 shown, a kind of vibration measuring pen, comprising: pen type shell body 101, test controller is equipped in the pen type shell body 101, vibration sensor 104 is equipped at the front end of the pen type shell body 101, the test controller is connected to control vibration sensor 104, the test controller includes low-power MCU, LCD display circuit, charge amplification circuit are connected on the low-power MCU, vibration sensor 104 is connected to low-power MCU by charge amplification circuit, digital and analog power supply circuit is connected on the low-power MCU, battery is connected on the digital and analog power supply circuit, pen type shell body 101 is equipped with button 102, button 102 is installed at the front end of pen type shell body 101, and button 102 is connected to test controller.The button 102, include two buttons, one is switch key, one is measurement key.

[0021] The vibration measurement implementation process of the utility model vibration measuring pen is as follows:

[0022] Charge output type vibration sensor becomes voltage signal by charge amplification circuit on circuit board, the signal is sampled by 16-bit ADC inside MCU, obtains a group of sampling waveform data, then carries out digital filtering, digital integration etc. Operation is obtained vibration measurement value in the MCU inside.The vibration measurement value is displayed on LCD.

[0023] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A vibropencil comprising: The pen-shaped machine shell body (101) is characterized in that a vibration sensor (104) is arranged at the front end of the pen-shaped machine shell body (101), the test controller is connected to control the vibration sensor (104), the test controller comprises a low-power MCU, the low-power MCU is connected with an LCD display circuit and a charge amplification circuit, the vibration sensor (104) is connected to the low-power MCU through the charge amplification circuit, the low-power MCU is connected with a digital and analog power supply circuit, the digital and analog power supply circuit is connected with a battery, the vibration sensor (104) is a charge output type vibration sensor, the vibration sensor (104) is changed into a voltage signal through the charge amplification circuit on the circuit board, the signal is sampled by a 16-bit ADC in the MCU, a group of sampling waveform data is obtained, then digital filtering and digital integral operation are carried out in the MCU to obtain a vibration measurement value; an LCD display (103) is arranged on the pen-shaped machine shell body (101), the LCD display (103) is installed at the front end of the pen-shaped machine shell body (101), and the LCD display (103) is connected to the test controller.

2. A vibration measuring pen according to claim 1, wherein: A key (102) is arranged on the pen-shaped machine shell body (101), the key (102) is installed at the front end of the pen-shaped machine shell body (101), and the key (102) is connected to the test controller.

3. A vibration measuring pen according to claim 2, wherein: The key (102) comprises two keys, one is a power-on / off key, and the other is a measurement key.

4. A vibration measuring pen according to claim 1, wherein: The LCD display is a segment code type LCD, which displays a measurement value and battery power information.

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