CN205940644U - Acceleration, amplitude sensor - Google Patents

Abstract

The acceleration, the amplitude sensor, the power distribution box comprises a box body, correspond about in the box and set up cell body and lower cell body, the inslot of cell body is provided with the wire resistor board under, in the fixed metallic conduction area that is provided with in the bottom of last cell body, be provided with electrically conductive gyro wheel combination piece between wire resistor board and metallic conduction area, gyro wheel combination piece is including big gyro wheel and two trundles, big gyro wheel just and between the wire resistor board upper surface switches on on being located the wire resistor board, both ends at big roller shaft are connected with the shell fragment, the hub connection of two trundles is on the shell fragment, two trundles contact with the metallic conduction area each other, two tip of shell fragment do not are connected with a spring, the other end fixed connection of two springs is at the inner wall both ends of box, draw forth lead wire A respectively from the both ends of wire resistor board, lead wire B, follow the tip in metallic conduction area and draw forth lead wire C. But the wide application of this sensor to multiple measurement and automatic control field.

Description

Acceleration, amplitude sensor

Technical field

The utility model is related to acceleration, amplitude sensor, belongs to Automatic Measurement Technique field.

Background technology

Current acceleration, amplitude sensor have varied, but in actually used practice, such as swept resistance formula accelerates Degree, amplitude sensor, have a following defect, and one is that its frictional resistance is larger, easily produce in the course of the work local pyrexia, Cause the abrasion of material, lead to the shortening of resistance value change and service life, particularly in the case that operating frequency is higher, this The situation of kind is more easy to occur；Two is that this sensor use environment temperature is relatively low；Three is do not allow to be easy to do longer, is applied to compared with epipodium Border temperature and special occasion, are subject to certain restrictions.

Content of the invention

The purpose of this utility model is the defect overcoming above-mentioned acceleration, amplitude sensor to exist, and provides a kind of acceleration Degree, amplitude sensor.

For realizing the purpose of this utility model, employ following technical schemes：Acceleration, amplitude sensor, including case Body it is characterised in that：It is correspondingly arranged upper groove body and lower groove up and down in casing, the notch of upper groove body is downward, the groove of lower groove Mouth upwards, is provided with wire resistor plate in the groove of lower groove, insulate, at the bottom of upper groove body between wire resistor plate and lower groove Portion is fixedly installed metal conductor tracks, insulate between metal conductor tracks and upper groove body, wire resistor plate and metal conductor tracks it Between be provided with the roller sub-assembly of conduction, described roller sub-assembly includes big roller and two before and after the big roller respectively Trundle, fore-and-aft direction refers to the length direction of wire resistor plate, big roller be located at wire resistor plate on and with wire resistor plate Turn between upper surface, be connected with shell fragment at the two ends of big roller axle, the axle direct or indirect connection of two trundles is in shell fragment On, two trundles are contacted with each other with metal conductor tracks, and two ends of shell fragment are connected to a spring, two springs The other end is fixedly connected on the inwall two ends of casing, draws lead A, lead B respectively from the two ends of wire resistor plate, leads from metal Electricity band end draw lead C, lead A, lead B, lead C as the Wiring port of acceleration, amplitude sensor, during use, Lead A, lead B, lead C connect to analog quantity transformation modular circuit, and transmitting module is then connected to instrument, further, upper groove Body and lower groove are grooved hardware, the groove inner face of lower groove is provided with insulating lacquer layer, insulating lacquer layer is pasted with thickness Spend the mica sheet for 0.1～0.3 millimeter, wire resistor plate is fixedly mounted on mica sheet top, the inner surface setting of upper groove body has Insulating lacquer layer, insulating lacquer layer is pasted with the mica sheet that thickness is 0.1～0.3 millimeter, metal conductor tracks pass through mica sheet with upper Isolated insulation between cell body, further, described big roller axle position in the lower section of two trundle axles, big roller axle and two The line at trundle axle three center is triangular structure, and further, two described trundles are identical, and two trundles exist It is symmetrical arranged before and after big roller.

Positive Advantageous Effects of the present utility model are：One is mobile to be changed into using sliding friction conventional Rolling friction, thus reducing frictional resistance, two is that sliding friction easily produces the heating of local and the abrasion of material, easily leads Send a telegraph resistance to change and service life shortening, the wire resistor of rolling contact type of the present utility model does not allow to be also easy to produce the heating of local Abrasion with material, it is not easy to lead to resistance to change, can increase service life；Three is the grooved gold due to application in this sensor Metal elements, enamel-cover constantan-made resistances silk, epoxy glass-fiber-fabric substrate, phenolic resin plate, roller sub-assembly heatproof are higher, can be in environment The higher place of temperature uses；Five be this sensor can do longer, can be widely applied to multiple measure and automatically control Field.

Brief description

Fig. 1 is the overall structure diagram of the utility model sensor.

Fig. 2 is the schematic cross-section that the utility model sensor is cut open from left and right directions.

Fig. 3 is the schematic diagram of roller sub-assembly.

Fig. 4 is the schematic top plan view of roller sub-assembly.

Fig. 5 be sensor output port be connected with analog quantity transformation modular circuit after schematic diagram.

Specific embodiment

In order to more fully explain enforcement of the present utility model, provide embodiment of the present utility model.These implement real Example is only to elaboration of the present utility model, does not limit scope of the present utility model.

The Cleaning Principle of the present invention is：Obtained by Newton's second law：F=m a, acceleration a=F/m, fixed by Hooke Restrain：F=k x, when sensor moves with testee, the bonding force suffered by roller sub-assembly is by by roller sub-assembly Spring provides in front and back, and when direction of motion setting is forward N, is S backward, when object N acceleration movement forward, roller combines The spring in front N direction for the part will be in extended state, provide pulling force to obtain F=kx for roller sub-assembly；Roller sub-assembly is in S backward The spring in direction will be in compressive state, provide thrust F=kx for roller sub-assembly, because two springs are identical, stiffness factor phase Amount of elastic deformation with, two springs is identical, and the power of therefore generation is equal, and the bonding force that roller is subject to is：F=kx+kx is F=2kx. In conjunction with F=ma, a=F/m can obtain a=2kx/m.

In conjunction with accompanying drawing further details of explanation to the utility model, respectively it is labeled as in accompanying drawing：1：Casing；2：Upper groove body； 3：Lower groove；4：Conductive strips；5：Wire resistor plate；6：Roller sub-assembly；7：Lead A；8：Lead B；9：Lead C；10：Insulated paint And mica sheet； 12：Accessory power supply；14：Current loop transmitting module；16：Support 61：Big roller；62：Trundle one；63：Little Roller two；64：Shell fragment；65：Spring one；66：Spring two；611：Big roller axle；621：Trundle one axle；631：Trundle two Axle.It should be noted that being illustrated with upper groove body, lower groove for horizontal direction in the utility model, other each parts Position be all relative position, when actually used, according to install measurement needs, upper groove body, lower groove can be level sides To or vertical direction or tilt in arbitrarily angled.As shown in drawings, illustrate：In fig. 2, for the ease of distinguishing Illustrate there is gap between the wire resistor plate of the roller sub-assembly that in figure shows and bottom and the metallic conduction on top, actual system When making, roller sub-assembly 6 should be with the metal conductor tracks of the wire resistor plate of bottom and top and contact.

It is below the concrete making example of detecting system of the present utility model：

The making of wire resistor plate：Take long 260mm, wide 5mm, thick 10mm, epoxy glass-fiber-fabric substrate, enamel-cover constantan-made resistances Silk takes a diameter of 0.15 mm, and every meter of resistance value is 27.60 Ω, coiling on the plate of present 260mm, roller sub-assembly effective travel Apart from 200mm, around 200mm/0.15 mm ≈ 1333.33 circle, it is 30 mm around the length of every circle, winding length is altogether： 1333.33 40.00 meters of circle × 30 mm ≈ 39999.99mm ≈, total resistance value is 40.00 meters × 27.60 Ω=1104.00 Ω, In sensor welding application, wire resistor plate hinders 1000 Ω with Wheatstone bridge measurement power taking.

In Fig. 5, the 1-12 of ISO-R9-P3-O2-Z module inframe numbers for Wiring port, and the 1-12 with lead is accompanying drawing mark Note numbering.As illustrated, acceleration, amplitude detection sensor, described acceleration, amplitude detection sensor include casing 1, case The rectangle insulation board of body makes of phenolic resin plate insulating materials, is correspondingly arranged upper groove body 2 and lower groove in casing 1 up and down 3, downwards, the notch of lower groove 3 upwards, is provided with wire resistor plate 5, wire resistor in the groove of lower groove 3 to the notch of upper groove body 2 Insulate between plate 5 and lower groove 3, be fixedly installed metal conductor tracks 4, metal conductor tracks 4 and upper groove body in the bottom of upper groove body 2 Insulate between 2, upper groove body 2 and lower groove 3 are grooved hardware, the groove inner face of lower groove 3 are provided with insulating lacquer layer, absolutely The mica sheet that thickness is 0.1～0.3 millimeter is pasted with edge enamelled coating, in figure 10 show insulated paint and mica sheet, wire resistor Plate 5 is fixedly mounted on mica sheet top, and the inner surface setting of upper groove body has insulating lacquer layer, and insulating lacquer layer is pasted with thickness is 0.1～0.3 millimeter of mica sheet, metal conductor tracks pass through isolated insulation between mica sheet and upper groove body, wire resistor plate 5 with It is provided with the roller sub-assembly 6 of conduction, described roller sub-assembly 6 includes big roller 61 and difference position between metal conductor tracks 4 Two trundles before and after big roller 61, trundle 1 as depicted, trundle 2 63, fore-and-aft direction refers to wire resistor The length direction of plate, big roller 61 is located on wire resistor plate and turns on, in big roller and wire resistor plate 5 upper surface between The two ends of axle 611 are connected with shell fragment 64, the axle direct or indirect connection of two trundles on shell fragment 64, in Fig. 3, trundle one Axle 621, trundle axle 2 631 are connected on shell fragment 64 by the support of vertical direction, and 16 show a support, and shell fragment 64 makes Good contact between roller sub-assembly and metal conductor tracks and wire resistor plate, two trundles are mutual with metal conductor tracks 5 Contact, two ends of shell fragment 64 have a spring respectively, as illustrated, one end of shell fragment 64 is connected with spring 1, another End is connected with spring 2 66, and the draw direction of spring is fore-and-aft direction, and the other end of two springs is fixedly connected on the interior of casing 1 Wall two ends, draw lead A7, lead B8 respectively from the two ends of wire resistor plate 5, draw lead C9 from the end of metal conductor tracks, Lead A, lead B, lead C, as the Wiring port of acceleration, amplitude sensor, are connected to current loop transmitting module, described Current loop transmitting module model：Electric current transmitting module ISO-R9-P3-O2-Z, ISO-R9-P3-O2-Z are electric current loops Road transmitting module, has 12 terminals, and lead A, lead B, lead C are connected respectively to ISO-R9-P3-O2-Z current loop and become Send 1,2,3 terminals of module, 5,6 terminals of current loop transmitting module ISO-R9-P3-O2-Z connect accessory power supply 12 Positive pole and negative pole, 8,11 terminals of current loop transmitting module ISO-R9-P3-O2-Z connect the current potential of an adjustment zero point Device, 9,10 terminals of current loop transmitting module ISO-R9-P3-O2-Z connect the potentiometer of a detection completely journey, electric current loop 7 terminals of road transmitting module ISO-R9-P3-O2-Z are analog signalses 4-20mA current output terminals, current loop pick-up mould The 7 of block ISO-R9-P3-O2-Z, 12 terminals have following connected mode：The one analog signalses 4-20mA electricity being coupled to instrument 4-20mA analog signalses are finally converted into digital quantity signal by instrument, the detection of acceleration, amplitude by stream input terminal Value shows, is made for independent acceleration, amplitude measurement sensor, and described big roller axle 611 is located at two trundles The lower section of axle, the line at big roller axle and two trundle axle three centers is triangular structure, and triangular structure makes roller group Component stable movement, is unlikely to deform, and two described trundles are identical, and two trundles are symmetrical arranged in big roller both sides.This In concrete making, in rectangular box 1, rectangle insulation board makes utility model of phenolic resin plate insulating materials, flute profile gold Metal elements can, stainless steel silver-plated with aluminium section bar, copper, copper；Metal conductor tracks available copper, copper are silver-plated, stainless steel substrates make, metal Plate electrode lead can make of copper wire, silver-gilt copper wire.The flute length of the upper groove body in the length and width of metal conductor tracks and casing top, Wide consistent, roller sub-assembly trundle one, trundle two, roller shaft, shell fragment combination are assembled, and are connected with roller sub-assembly Spring can be selected for stainless steel spring, and trundle, big roller, roller shaft can be selected for copper, stainless steel makes, and shell fragment can be closed using copper Gold, copper alloy is silver-plated, stainless steel substrates make, wire resistor plate insulation enamel-cover constantan-made resistances silk, and close to be wound on a rectangle exhausted Wire resistor plate is fabricated on listrium.The length and width of wire resistor plate is consistent with the groove of lower groove, in the upper surface of wire resistor plate Polish off insulation and paint exposed line face to ensure there is good contact with roller sub-assembly, draw lead at wire resistor plate two ends A and lead B.Lead A and lead B can make of copper wire, silver-gilt copper wire.When bin movement state changes, roller combines Part will roll on the exposed line face of wire resistor plate.Due to the movement of the contact point in wire resistor plate for the roller sub-assembly, Resistance value is made to change.

After describing embodiment of the present utility model in detail, one of ordinary skilled in the art is clearly understood that, Various change and modification can be carried out without departing under above-mentioned claim and spirit, all according to technical spirit of the present utility model Any simple modification, equivalent variations and the modification that above example is made, belongs to the scope of technical solutions of the utility model, And the utility model is also not only restricted to the enforcement of example in specification.

Claims (4)

1. acceleration, amplitude sensor, including casing it is characterised in that：It is correspondingly arranged upper groove body and lower groove up and down in casing Body, downwards, the notch of lower groove upwards, is provided with wire resistor plate, wire resistor in the groove of lower groove to the notch of upper groove body Insulate between plate and lower groove, be fixedly installed metal conductor tracks in the bottom of upper groove body, between metal conductor tracks and upper groove body Insulation, is provided with the roller sub-assembly of conduction between wire resistor plate and metal conductor tracks, and described roller sub-assembly includes Big roller and respectively two trundles before and after big roller, fore-and-aft direction refers to the length direction of wire resistor plate, big roller Turn on wire resistor plate and and wire resistor plate upper surface between, be connected with shell fragment at the two ends of big roller axle, two On shell fragment, two trundles are contacted with each other the axle direct or indirect connection of individual trundle with metal conductor tracks, two of shell fragment End is connected to a spring, and the other end of two springs is fixedly connected on the inwall two ends of casing, from wire resistor plate Two ends draw lead A, lead B respectively, from the end of metal conductor tracks draw lead C, lead A, lead B, lead C as plus Speed, the Wiring port of amplitude sensor, during use, lead A, lead B, lead C connect to analog quantity transformation modular circuit, become Module is sent to be then connected to instrument.

2. acceleration according to claim 1, amplitude sensor it is characterised in that：Upper groove body and lower groove are grooved Hardware, is provided with insulating lacquer layer in the groove inner face of lower groove, and it is 0.1～0.3 millimeter that insulating lacquer layer is pasted with thickness Mica sheet, wire resistor plate is fixedly mounted on mica sheet top, and the inner surface setting of upper groove body has insulating lacquer layer, on insulating lacquer layer It is pasted with the mica sheet that thickness is 0.1～0.3 millimeter, metal conductor tracks pass through isolated insulation between mica sheet and upper groove body.

3. acceleration according to claim 1, amplitude sensor it is characterised in that：Described big roller axle position is in two The lower section of trundle axle, the line at big roller axle and two trundle axle three centers is triangular structure.

4. acceleration according to claim 1, amplitude sensor it is characterised in that：Two described trundles are identical, and two Individual trundle is symmetrical arranged before and after big roller.