CN206037996U - Resistance -type of meeting an emergency level indication meter - Google Patents

Resistance -type of meeting an emergency level indication meter Download PDF

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Publication number
CN206037996U
CN206037996U CN201620585518.0U CN201620585518U CN206037996U CN 206037996 U CN206037996 U CN 206037996U CN 201620585518 U CN201620585518 U CN 201620585518U CN 206037996 U CN206037996 U CN 206037996U
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CN
China
Prior art keywords
steel sheet
elastic steel
pointer
amplifier
pin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620585518.0U
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Chinese (zh)
Inventor
潘海军
张文昭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou an electronic technology Co., Ltd.
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Hunan University of Science and Engineering
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Priority to CN201620585518.0U priority Critical patent/CN206037996U/en
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Publication of CN206037996U publication Critical patent/CN206037996U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a resistance -type of meeting an emergency level indication meter, the device include frame, elastic steel sheet, weight, metal strain gauge, amplifier and pointer voltameter. When the frame level was placed, elastic steel sheet was vertical downwards, electric bridge in equilibrium that metal strain gauge constitutes, and amplifier output voltage be fragmentary, and the pointer voltameter indicates in the zero position, keep flat when putting when the frame is nonaqueous, the elastic steel sheet slope, the electric bridge that metal strain gauge forms disequilibrates, and the amplifier output is non -zero, and the pointer voltameter indicates to be the incline direction promptly in non zero position.

Description

A kind of horizontal indicating gage of strain resistance type
Technical field
The utility model is related to the technologies such as electronic technology, sensing technology and machine-building, particularly three and combines Field.
Background technology
Object horizontal survey indicates to be used widely in fields such as building, laboratory and scientific researches with inclination angle.Traditional water Level is air bubble type level meter, is had a disadvantage in that:The horizontality in limited direction can only be measured, it is impossible to detect inclined angle Degree;Also there is the scheme of some electronic type detection levels, but structure is relatively complicated, sensitivity is not high.The utility model design one The horizontal indicating gage using strain resistor is planted, existing problem is solved.
The content of the invention
For simplifying the structure of level measurement device, sensitivity is improved, design a kind of horizontal indicating gage of strain resistance type, the reality With new including framework(1), elastic steel sheet(2), weight(3), metal strain plate(4), amplifier(5)With pointer potentiometer(6); Framework(1)It is placed on the table desktop of level to be measured, elastic steel sheet(2)Upper end is fixed on framework(1)Upper side frame, weight(3) It is fixed on elastic steel sheet(2)Lower end, metal strain plate(4)It is pasted onto elastic steel sheet(2)Centre.Metal strain plate(4)Bag Four foil gauges R1, R2, R3, R4 are included, R1, R3 are pasted onto elastic steel sheet(2)The left side, R2, R4 are pasted onto elastic steel sheet(2)'s The right, R1, R2, R3, R4 are in turn connected into electric bridge, and one end of R1 is connected to R2, and the other end of R2 is connected to R3, the other end of R3 Be connected to R4, the other end of R4 be connected to the tie point of R1, R1 and R2 for A, R2 and R3 tie point be D, R3 and R4 connection Point is C for the tie point of B, R4 and R1, and 2 points of A, B of electric bridge connect amplifier respectively(5)The pin 3 and pin 2 of INA128, electricity 2 points of C, D of bridge meets power supply+5V and -5V respectively.Amplifier(5)Using instrument amplifier INA128, the pin 6 of INA128 connects finger Show potentiometer.Pointer potentiometer(6)Using needle dc voltmeter, when output voltage is zero, pointer instruction in mid-scale is Zero graduation, when voltage is deflected clockwise for timing, is deflected counterclockwise when voltage is for bearing.
The beneficial aspects of the utility model are simple structure, sensitivity height, can be digitized and intelligent.
Description of the drawings
Fig. 1 structural representations, Fig. 2 are circuit theory diagrams, and in fig. 1 and 2,1 is framework, 2 is elastic steel sheet, 3 attach most importance to Hammer, 4 be metal strain plate, 5 be amplifier and 6 be pointer potentiometer.
Specific embodiment
The utility model includes framework(1), elastic steel sheet(2), weight(3), metal strain plate(4), amplifier(5)And finger Pin potentiometer(6);Framework(1)It is placed on the table desktop of level to be measured, elastic steel sheet(2)Upper end is fixed on framework(1)It is upper Frame, weight(3)It is fixed on elastic steel sheet(2)Lower end, metal strain plate(4)It is pasted onto elastic steel sheet(2)Centre.Metal Foil gauge(4)Including four foil gauges R1, R2, R3, R4, R1, R3 are pasted onto elastic steel sheet(2)The left side, R2, R4 are pasted onto bullet Property steel disc(2)The right, R1, R2, R3, R4 be in turn connected into electric bridge, and one end of R1 is connected to R2, and the other end of R2 is connected to The other end of R3, R3 is connected to R4, and it is D for the tie point of A, R2 and R3 that the other end of R4 is connected to the tie point of R1, R1 and R2, The tie point of R3 and R4 is C for the tie point of B, R4 and R1, and 2 points of A, B of electric bridge connects amplifier respectively(5)INA128's draws Pin 3 and pin 2,2 points of C, D of electric bridge meet power supply+5V and -5V respectively.Amplifier(5)Using instrument amplifier INA128, The pin 6 of INA128 connects instructed voltage meter(6).Pointer potentiometer(6)Using needle dc voltmeter, when output voltage is zero, Pointer is indicated in mid-scale(Zero graduation), when voltage is deflected clockwise for timing, deflected when voltage is for bearing counterclockwise.
In the present embodiment, when framework horizontal positioned, straight down, the electric bridge of metal strain plate composition is in elastic steel sheet Balance, amplifier are output as zero, and pointer potentiometer refers in zero position;When the non-aqueous placing flat of framework, elastic steel sheet is inclined, metal The electric bridge of foil gauge composition breaks balance, and amplifier output is not zero, and pointer potentiometer refers in non-zero position, as incline direction And angle of inclination.
In the present embodiment, in Fig. 2, R5 is sensitivity adjustment resistance, and maximum value is 1K, and R6 is horizontal zero-regulator resistor, when During framework level, adjusting R6 makes instructed voltage meter(6)It is 5K to be designated as zero, R6, and R7 is 1K.
In the present embodiment, tetra- electrostrictive strain resistances of R1, R2, R3, R4 are 350 ohm.

Claims (4)

1. a kind of horizontal indicating gage of strain resistance type, is characterized in that including framework(1), elastic steel sheet(2), weight(3), metal should Become piece(4), amplifier(5)With pointer potentiometer(6);Framework(1)It is placed on the table desktop of level to be measured, elastic steel sheet(2) Upper end is fixed on framework(1)Upper side frame, weight(3)It is fixed on elastic steel sheet(2)Lower end, metal strain plate(4)It is pasted onto Elastic steel sheet(2)Centre.
2. a kind of horizontal indicating gage of strain resistance type according to claim 1, is characterized in that amplifier(5)Put using instrument Big device INA128, the pin 6 of INA128 connect instructed voltage meter.
3. a kind of horizontal indicating gage of strain resistance type according to claim 1 and 2, is characterized in that metal strain plate(4)Bag Four foil gauges R1, R2, R3, R4 are included, R1, R3 are pasted onto elastic steel sheet(2)The left side, R2, R4 are pasted onto elastic steel sheet(2)'s The right, R1, R2, R3, R4 are in turn connected into electric bridge, and one end of R1 is connected to R2, and the other end of R2 is connected to R3, the other end of R3 Be connected to R4, the other end of R4 be connected to the tie point of R1, R1 and R2 for A, R2 and R3 tie point be D, R3 and R4 connection Point is C for the tie point of B, R4 and R1, and 2 points of A, B of electric bridge connect amplifier respectively(5)The pin 3 and pin 2 of INA128, electricity 2 points of C, D of bridge meets power supply+5V and -5V respectively.
4. a kind of horizontal indicating gage of strain resistance type according to claim 1, is characterized in that pointer potentiometer(6)Using referring to Pin type voltmeter, when output voltage is zero, it is zero graduation that pointer is indicated in mid-scale, when voltage is that timing is inclined clockwise Turn, deflected when voltage is for bearing counterclockwise.
CN201620585518.0U 2016-06-17 2016-06-17 Resistance -type of meeting an emergency level indication meter Expired - Fee Related CN206037996U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620585518.0U CN206037996U (en) 2016-06-17 2016-06-17 Resistance -type of meeting an emergency level indication meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620585518.0U CN206037996U (en) 2016-06-17 2016-06-17 Resistance -type of meeting an emergency level indication meter

Publications (1)

Publication Number Publication Date
CN206037996U true CN206037996U (en) 2017-03-22

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Family Applications (1)

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CN201620585518.0U Expired - Fee Related CN206037996U (en) 2016-06-17 2016-06-17 Resistance -type of meeting an emergency level indication meter

Country Status (1)

Country Link
CN (1) CN206037996U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107514992A (en) * 2016-06-17 2017-12-26 湖南科技学院 A kind of strain resistance type horizon detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107514992A (en) * 2016-06-17 2017-12-26 湖南科技学院 A kind of strain resistance type horizon detector

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20170502

Address after: The 4 area of the Han River Road Panyu District village street Guangzhou city Guangdong province 518100 Southland Olympic Garden Road 2 North 4 storey block No. 2

Patentee after: Guangzhou an electronic technology Co., Ltd.

Address before: Yang Zitang road 425199 Yongzhou city of Hunan province Lingling District No. 130 Hunan University of Science and Engineering

Patentee before: Hunan University of Science and Engineering

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170322

Termination date: 20200617

CF01 Termination of patent right due to non-payment of annual fee