CN206505091U - A kind of new reflection-type photoelectricity device for testing rotating speed - Google Patents

Abstract

The utility model is related to a kind of novel trans emitting photoelectric whirl test device for being applied to electronic experiment and measuring observing and controlling application field, includes display main frame, holding frame and inductor；Display main frame is configured with registration table, power switch, precision alignment knob, scope and harmonizes knob, signal input port and signal output port；Inductor includes connector, photoelectric sensor, signal wire and sheath；There is provided high accuracy and stable measuring environment, the processing such as transmit, change and calculate by photosignal, realize the tachometric survey to power-equipment, and shown on main frame with numeric form showing；The regulation and control of measurement range are realized, financial cost is reduced, simplify operating process.

Description

A kind of new reflection-type photoelectricity device for testing rotating speed

Technical field

The utility model belongs to the field of Experiment of Electronic Technology and metering observing and controlling application, more particularly to a kind of new reflection Type photoelectric whirl test device.

Background technology

With the continuous progress of social modernization and electronization, in industrial production and the every field of daily life, move The application of power rotating machinery and element is also very universal；Each device product is required for progressive before producing or applying Can detection, and to the tachometric survey of dynamic rotation plant equipment be then an important process of its performance test because, rotating speed ginseng Number influences whether working condition, running life and each other performance parameter of equipment, and its degree of accuracy is even more to involve equipment Job security and operational availability.Current tachometric survey instrument species is various, but is counted in measuring phases and tachometer Easy occurrence count error, meanwhile, it is necessary to use different accuracy and the instrument of scope, economy in different tachometric surveies Cost is higher, is also complicated using process.

Utility model content

The purpose of this utility model is in view of the deficienciess of the prior art, there is provided a kind of new reflection-type photoelectricity Device for testing rotating speed, by photoelectric sensor, D/A converting circuit and signal modulation, to the letter collected from tested power-equipment Number modulate and handle, to obtain high accuracy data；Simultaneously on the premise of precise information in reaching different rotating speeds scope, reduction Financial cost.

In order to solve the above-mentioned technical problem, the utility model uses following technical scheme：A kind of new reflection-type photoelectricity Rotational speed devices, include display main frame, holding frame and inductor；The display main frame is configured with registration table, power switch, precision Harmonize knob, scope and harmonize knob, signal input port and signal output port；The inductor includes connector, photoelectricity Sensor, signal wire and sheath.

As a preferred embodiment, the light-emitting component used in the photoelectric sensor is light emitting diode, photoelectric tube is photosensitive Diode, respectively as light emitting source and signal conversion element.

As a preferred embodiment, being needed in the photoelectric sensor by three convex lens and a translucent diaphragm, to institute The light beam for stating light-emitting component is reflected and conducted.

As a preferred embodiment, the sheath is made of alloy, the abrasion of the inductor under static state is prevented.

As a preferred embodiment, the inductor can coordinate reflective sticker, be used as mark when testing dynamic rotation equipment Element, provides feedback signal exactly.

As a preferred embodiment, the holding frame can laterally fix artificial in the sensor location, reduction test process Error.

Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below Describe in detail bright as after.

Brief description of the drawings

The following drawings is only intended to, in doing the utility model schematic illustration and explanation, not limit model of the present utility model Enclose.

Fig. 1, Fig. 2 are new reflection-type photoelectricity device for testing rotating speed schematic diagram.

Fig. 3 is new reflection-type photoelectricity device for testing rotating speed fundamental diagram：41-light-emitting component, 42-photoelectric tube,

43-the first convex lens, the 44-the second convex lens, the 45-the three convex lens, 46-translucent diaphragm.

Embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Reflection-type photoelectricity device for testing rotating speed as shown in Figure 1, includes display main frame（1）, holding frame（2）And inductor （3）；The display main frame（1）It is configured with registration table（11）, power switch（12）, precision alignment knob（13）, scope harmonize rotation Button（14）, signal input port（15）With signal output port（16）, the registration table（11）For data with numerical value, waveform Showed etc. form and as test result for reference；The precision alignment knob（13）For adjusting the accurate of test data Degree, is provided simultaneously with reset function, the convenient adjustment calibration repeatedly tested；The scope harmonizes knob（14）For different equipment under tests Precognition scope selection, effectively protection detection means while, improve Detection accuracy；The signal input port（15）With institute State signal output port（16）, by the inductor（3）Obtained signal transduction is to signal conditioning circuit and digital analog converter；Institute State inductor（3）Pass through the connector（31）With the signal wire（33）, with reference to the photoelectric sensor（32）Grating is believed Number it is converted into pulse electrical signal and is transferred to the display main frame（1）It is for data processing.

In the course of the work, the power switch is opened（16）, by the signal wire（33）Port is inserted, the company is connected Connect device（31）With the photoelectric sensor（32）Constitute the inductor（3）, be powered operating；The light-emitting component（41）Produce Light beam passes through first convex lens（43）Become directional light, be radiated at the translucent diaphragm（46）On；Light is reflected onto Second convex lens（45）And be focused into the rotating shaft of tested power-equipment a bit, due to the different absorbing surface of rotating shaft and instead Face is penetrated, the effect of grating is reached, reflecting surface reflects light beam, and absorbing surface is light beam；Reflected light passes through second convex lens again （45）It is mapped to the translucent diaphragm（46）And penetrate, light beam passes through the 3rd convex lens（44）In the photoelectric tube（42）'s Luminous point, the photoelectric tube are focused on negative electrode（42）Electric signal is converted optical signals into, electric current is produced；Due to the space-number of grating Necessarily, optical signal is conducted with form of light pulses, and is converted into electric impulse signal, and electric impulse signal is directly proportional to tachometer value；Profit Use the signal wire（33）It is transferred to the display main frame（1）Interior signal alignment circuit, is modulated to electric impulse signal, and Processed electric signal is transmitted to digital analog converter, the electric signal as analog quantity is converted into data signal, subsequently into STC single-chip microcomputers make alignment processing, and finally corresponding value or waveform are shown in registration table, equipment under test rotating speed of ascending the throne Value.

The utility model beneficial effect is：Light pulse signal is formed using the interval of grating, accurately and effectively by its turn Replace electric impulse signal, and then be converted into data signal by the internal circuit of the display main frame and show, its Process is anti-interference, strong adaptability；The different scopes that test the speed are applicable simultaneously, it is to avoid need to purchase the trouble of each type equipment, Also eliminate the process and difficulty of multi-step operation；The error for contacting and occurring with equipment under test is it also avoid simultaneously, is reduced The interference that human factor is brought, makes test more accurate, reliably.

A kind of new reflection-type photoelectricity rotational speed devices provided by the utility model, specific reality only of the present utility model Mode is applied, but protection domain of the present utility model is not limited thereto, and any one skilled in the art is in this reality In technical scope with new exposure, change or replacement can be readily occurred in, should all be covered within the utility model protection domain. Therefore, protection domain of the present utility model should be based on the protection scope of the described claims.

Claims (3)

1. a kind of new reflection-type photoelectricity device for testing rotating speed, it is characterised in that include display main frame (1), holding frame (2) With inductor (3)；The display main frame (1) is configured with registration table (11), power switch (12), precision alignment knob (13), model Enclose adjustment knob (14), signal input port (15) and signal output port (16)；The inductor (3) includes connector (31), photoelectric sensor (32), signal wire (33) and sheath (34).

2. a kind of new reflection-type photoelectricity device for testing rotating speed according to claim 1, it is characterised in that：The display Main frame（1）Inside has STC8 single-chip microcomputers, digital analog converter and signal conditioning circuit, makees signal transacting and data are calculated.

3. a kind of new reflection-type photoelectricity device for testing rotating speed according to claim 1, it is characterised in that：The photoelectricity Sensor（32）The middle light-emitting component used is light emitting diode, and photoelectric tube is photodiode.