CN203642866U - Digital display inductance micrometer - Google Patents
Digital display inductance micrometer Download PDFInfo
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- CN203642866U CN203642866U CN201320840034.2U CN201320840034U CN203642866U CN 203642866 U CN203642866 U CN 203642866U CN 201320840034 U CN201320840034 U CN 201320840034U CN 203642866 U CN203642866 U CN 203642866U
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- 238000005259 measurement Methods 0.000 claims abstract description 35
- 238000004364 calculation method Methods 0.000 claims abstract description 13
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 50
- 230000003321 amplification Effects 0.000 claims description 20
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 20
- 230000003534 oscillatory effect Effects 0.000 claims description 7
- 238000011896 sensitive detection Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 10
- 238000012937 correction Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a digital display inductance micrometer. The digital display inductance micrometer comprises inductance measuring heads and a cubic micrometer housing. The front side of the micrometer housing is provided with a display window, a measuring range switching button and a toggle switch. The back side of the micrometer housing is provided with a first inductance measuring head interface, a second inductance measuring interface, a signal output port and a power supply switch. The micrometer housing is internally provided with an oscillation circuit, two zeroing circuits, a switching selection and differential calculation circuit, a signal simplifier, a converting circuit, a direct-current output circuit, an analog-digital and sampling circuit, a microprocessor, a measuring range selection button circuit and a display panel. A power supply is used for supplying power to the whole device. The digital display inductance micrometer is used for static measurement and dynamic measurement and is capable of completing various kinds of measurement tasks more accurately and quickly.
Description
Technical field
The utility model relates to a kind of exact instrument of measuring micro-displacement, relates in particular to a kind of digital display type inductance amesdial.
Background technology
Precision measurement is modern advanced basis of manufacturing, and the level of Technology of Precision Measurement and surveying instrument level are embodying industry and the scientific and technological level of country.In recent years, improve constantly along with advanced person manufactures new equipment in field, the quick progress in new technology ground and manufacturing accuracy, the measuring accuracy of surveying instrument is had higher requirement.Inductance amesdial is that one is based upon on electromagnetic induction basis, utilizes the self-induction of coil to realize the measurement of accurate displacement.Inductance amesdial is widely used in precision optical machinery manufacture, bearing, automobile, tractor, integrated circuit manufacture, and the precision measurement of the departments such as light textile industry and national defence, scientific research, plays vital effect.
Utility model content
The purpose of this utility model is to provide a kind of digital display type inductance amesdial, for static measurement and kinetic measurement, can complete more precisely, rapidly multiple measurement task.
The technical solution adopted in the utility model is:
A kind of digital display type inductance amesdial, comprise inductance probe and cube dial gauge housing, dial gauge housing front is provided with display window, range switching key, toggle switch, and dial gauge back side of shell is provided with first via inductance probe interface and the second road inductance probe interface, signal output, power switch, inductance probe comprises first via inductance sensor and No. second inductance sensor, and first via inductance sensor is connected respectively first via inductance probe interface and the second road inductance probe interface with No. second inductance sensor, dial gauge enclosure interior is provided with oscillatory circuit, the output terminal of oscillatory circuit connects respectively the input end that excites of first via inductance sensor and No. second inductance sensor, first via inductance sensor and the signal output part of No. second inductance sensor are connected respectively the input end of two-way zeroing circuit, the output terminal connecting valve of two-way zeroing circuit is selected and the poor input end that calculates circuit, switch is selected to be connected signal with the output terminal of poor calculation circuit and is amplified, the signal input part of change-over circuit, signal amplifies, the first output terminal of change-over circuit is exported by DC output circuit, signal amplifies, the second output terminal of change-over circuit passes through modulus, sample circuit connects the sampling input end of microprocessor, the control input end of microprocessor connects the first output terminal of measurement range selection key circuit, the second output terminal of measurement range selection key circuit connects signal and amplifies, the control input end of change-over circuit, the output terminal of microprocessor connects display panel, display panel is located at display window place, power supply is whole device power supply, range switching key is connected with the signal input part of measurement range selection key circuit, and toggle switch connecting valve is selected and signal input part is selected in the control of poor calculation circuit, and signal output connects the output terminal of DC output circuit.
Described signal amplifies, change-over circuit comprises AC amplifier, the signal input part connecting valve of AC amplifier is selected and the poor output terminal that calculates circuit, the control input end of AC amplifier connects the second output terminal of measurement range selection key circuit, the amplification input end of AC amplifier connects the output terminal of gain adjusting circuit, the output terminal of AC amplifier connects the signal input part of DC amplification circuit by phase-sensitive detection circuit, the first output terminal of DC amplification circuit connects DC output circuit, the second output terminal of DC amplification circuit connects modulus, sample circuit.
Described microprocessor is also connected with USB interface.
Described range switching key comprises three range buttons, and cooperation is provided with three range pilot lamp.
Described toggle switch is provided with three gears, and each gear respectively connecting valve is selected and the poor control selection signal input part that calculates circuit.
Described dial gauge housing front is also provided with first via inductance sensor zeroing knob, first via inductance sensor amplifies knob, No. second inductance sensor zeroing knob, No. second inductance sensor amplification knob, first via inductance sensor zeroing knob is connected with the control input end of zeroing circuit with No. second inductance sensor zeroing knob, and first via inductance sensor amplifies knob and amplifies with No. second inductance sensor the control input end that knob is connected gain adjusting circuit.
Described display panel adopts five-digit number code pipe to show.
The utility model utilizes inductance probe that displacement is converted to electric signal, the electric signal of inductance probe feedback is sent to signal amplification, change-over circuit, carry out suitable amplification via signal amplification, change-over circuit, afterwards AC signal is converted to DC signal output, simultaneously, microprocessor, by the voltage signal of modulus, sample circuit collection output, shows on display panel; Further, this device is provided with the tuning knob of several functions, regulates according to actual conditions, carries out surveying work more precisely, rapidly, increases work efficiency.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model;
Fig. 2 is the front view of cube dial gauge housing of the present utility model;
Fig. 3 is the rear view of cube dial gauge housing of the present utility model.
Embodiment
As Fig. 1, shown in Fig. 2 and Fig. 3, the utility model comprises cube dial gauge housing 1, the front 2 of cube dial gauge housing is provided with display window 3, range switching key 5 cooperation are provided with range pilot lamp 4, toggle switch, range switching key 5 comprises that three range buttons cooperation are provided with three range pilot lamp 4, three range buttons are connected with the signal input part of measurement range selection key circuit, dial gauge housing front 2 is also provided with first via inductance sensor A zeroing knob 7, first via inductance sensor A amplifies knob 8, No. second inductance sensor B zeroing knob 9, No. second inductance sensor B amplifies knob 10, first via inductance sensor A zeroing knob 7 is connected with the control input end of two-way zeroing circuit with No. second inductance sensor B zeroing knob 9 correspondences, first via inductance sensor A amplifies knob 8 and amplifies with No. second inductance sensor B the control input end that knob 10 is connected gain adjusting circuit, toggle switch 6 is provided with three gears, each gear respectively connecting valve is selected and the poor control selection signal input part that calculates circuit, display panel is located at display window 3 places, display panel adopts five-digit number code pipe to show, indication range is-1999 ~ 1999, dial gauge back side of shell 11 is provided with first via inductance probe interface 12 and the second road inductance probe interface 13, signal output 16, power switch 15 and usb 14, signal output 16 connects the output terminal of DC output circuit.
The utility model also comprises inductance probe, inductance probe comprises first via inductance sensor A and No. second inductance sensor B, and first via inductance sensor A is connected respectively first via inductance probe interface 12 and the second road inductance probe interface 13 with No. second inductance sensor B, dial gauge housing 1 inside is provided with oscillatory circuit, the output terminal of oscillatory circuit connects respectively the input end that excites of first via inductance sensor A and No. second inductance sensor B, first via inductance sensor A and the signal output part of No. second inductance sensor B are connected respectively the input end of two-way zeroing circuit, the output terminal connecting valve of two-way zeroing circuit is selected and the poor input end that calculates circuit, switch is selected to be connected signal with the output terminal of poor calculation circuit and is amplified, the signal input part of change-over circuit, signal amplifies, change-over circuit comprises AC amplifier, the signal input part connecting valve of AC amplifier is selected and the poor output terminal that calculates circuit, the control input end of AC amplifier connects the second output terminal of measurement range selection key circuit, the amplification input end of AC amplifier connects the output terminal of gain adjusting circuit, the output terminal of AC amplifier connects the signal input part of DC amplification circuit by phase-sensitive detection circuit, the first output terminal of DC amplification circuit connects DC output circuit, the second output terminal of DC amplification circuit connects modulus, sample circuit, modulus, the output terminal of sample circuit connects the sampling input end of microprocessor, the control input end of microprocessor connects the first output terminal of measurement range selection key circuit, the output terminal of microprocessor connects range pilot lamp 4(LED pilot lamp) and digital display pipe display panel, microprocessor is also connected with usb 14, power supply is whole device power supply.
The utility model in use, the signal that oscillatory circuit produces is added to the input end of first via inductance sensor A and No. second inductance sensor B, agitate signal to one of inductance sensor, make inductance sensor work, first via inductance sensor A and No. second inductance sensor B send to zeroing circuit by the electric signal recording again, and the voltage signal of exporting after zeroing circuit adjustment is proportional to the displacement of transducer probe assembly.Zero point that can regulation output voltage by zeroing circuit, what switch was selected and poor calculation circuit arranges by inside can carry out and differ from calculation the signal of first via inductance sensor A and No. second inductance sensor B with difference operation device, or the signal of exporting separately first via inductance sensor A is to subordinate's circuit.Measurement range selection key circuit, according to the range gear control ac amplifier circuit output signal range of current selection, meanwhile, sends to microprocessor by key information, and microprocessor, according to the range of selecting, and is controlled corresponding LED light and lighted.Signal amplifies, change-over circuit comprises AC amplifier, gain adjusting circuit, phase-sensitive detection circuit, four parts of DC amplification circuit, gain adjusting circuit can regulate the gain of ac amplifier circuit, phase-sensitive detection circuit transfers AC signal to d. c. voltage signal, and deliver to DC amplification circuit, signal one tunnel after amplification is through the d. c. voltage signal of DC output circuit be converted into-5V ~+5V, modulus is delivered on another road, sample circuit, microprocessor gathers modulus by spi bus, sample circuit Output rusults, and the displacement of its representative is presented on charactron display panel, also can pass through usb 16, to host computer output measurement result.The utility model can carry out static measurement and kinetic measurement, and static measurement is exactly, to measure be quantitative in the situation that at tested value; Kinetic measurement is exactly in the situation that tested value is variable, measures.For example, in carrying out surface finish measurement, need to be by sensing probe and measured object Surface Contact, and mobile sensor probe in some way, now the measurement numerical value of feedback is exactly a series of variable, is kinetic measurement.
For improving measuring accuracy, the utility model before use, is preferably proofreaied and correct:
One: the preparation before correction
A: plug first via inductance sensor A at first via inductance probe interface, toggle switch 6 is placed in to A shelves.
B: first via inductance sensor zeroing knob 7 is screwed into the end gently, and then reverse rotation 5 encloses, make first via inductance sensor zero potentiometer be positioned at centre position.
C: first via inductance probe is fixed on measurement of micromovements stand, powers on to instrument, adjust first via inductance sensor A, make its displayed value in ± 100um.
D: switching range is ± 100um gear, adjusts stand fine motion part, makes instrument displayed value in ± 5um.
E: preheating 30 minutes.
The correction of the second road inductance probe is proofreaied and correct with first via inductance sensor A, does not repeat them here.
Two: enlargement factor is proofreaied and correct
A: after preheating, range is switched to ± 100um gear, adjusts stand and make the displacement of first via inductance probe, the displayed value of instrument is in 1.0um, and then rotating first via inductance sensor A zeroing knob, to make to measure displayed value be 0.0um.
B: adjust the movable part of fine motion stand, make first via inductance probe produce the displacement of 100um.
C: adjust first via inductance sensor A by small screw driver and amplify knob, making instrument displayed value is 100.0um.
D: the movable part of adjusting fine motion stand, make first via inductance probe get back to initial zero position, if current indicating value is not 0.0um, just need to adjust the zero point of first via inductance probe, then repeatedly proofread, make the measurement displayed value of the corresponding 100.0um of displacement of 100um.
Three: the correction of the A ± B of ± 10um range and poor calculation
A: range gear selection ± 10um, toggle switch 6 is placed in to A gear, connect first via inductance probe.
B: the enlargement factor method of adjustment of first via inductance sensor A is with " two: enlargement factor is proofreaied and correct ", and measurement of micromovements stand adopts BCT-5C, and adjustment actual displacement is 10um, corresponding indicating value variation also should be 10um.
C: toggle switch 6 is placed in A+B shelves (or A-B shelves), uses first via inductance sensor zeroing knob 7 that current indicating value is adjusted to 0.00um.
D: connect upper the second road inductance probe, the second road inductance probe is fixed on BCT-5C measurement of micromovements stand.
E: keep the second inductance probe position, road motionless, the enlargement factor of again proofreading first via inductance sensor, then by first via inductance probe back to zero.
F: keep first via inductance probe position motionless, the enlargement factor of calibration No. second sensor, method is same, " two: enlargement factor is proofreaied and correct ", and measurement of micromovements stand adopts BCT-5C, and adjustment actual displacement is 10um, and corresponding indicating value also should be 10um.
Above-mentioned A shelves refer to that first via inductance probe works alone, and A+B shelves refer to that first via inductance probe and the second road inductance probe measured value carry out and calculate, and A-B shelves refer to that first via inductance probe and the second road inductance probe measured value differ from calculation.
The correction of the A ± B of ± 100um range and poor calculation and ± A ± B of 1000um range and the correction of poor calculation with ± A ± B of 10um range and the correction of poor calculation, do not repeat them here.
Claims (7)
1. a digital display type inductance amesdial, it is characterized in that: comprise inductance probe and cube dial gauge housing, dial gauge housing front is provided with display window, range switching key, toggle switch, and dial gauge back side of shell is provided with first via inductance probe interface and the second road inductance probe interface, signal output, power switch, inductance probe comprises first via inductance sensor and No. second inductance sensor, and first via inductance sensor is connected respectively first via inductance probe interface and the second road inductance probe interface with No. second inductance sensor, dial gauge enclosure interior is provided with oscillatory circuit, the output terminal of oscillatory circuit connects respectively the input end that excites of first via inductance sensor and No. second inductance sensor, first via inductance sensor and the signal output part of No. second inductance sensor are connected respectively the input end of two-way zeroing circuit, the output terminal connecting valve of two-way zeroing circuit is selected and the poor input end that calculates circuit, switch is selected to be connected signal with the output terminal of poor calculation circuit and is amplified, the signal input part of change-over circuit, signal amplifies, the first output terminal of change-over circuit is exported by DC output circuit, signal amplifies, the second output terminal of change-over circuit passes through modulus, sample circuit connects the sampling input end of microprocessor, the control input end of microprocessor connects the first output terminal of measurement range selection key circuit, the second output terminal of measurement range selection key circuit connects signal and amplifies, the control input end of change-over circuit, the output terminal of microprocessor connects display panel, display panel is located at display window place, power supply is whole device power supply, range switching key is connected with the signal input part of measurement range selection key circuit, and toggle switch connecting valve is selected and signal input part is selected in the control of poor calculation circuit, and signal output connects the output terminal of DC output circuit.
2. digital display type inductance amesdial according to claim 1, it is characterized in that: described signal amplifies, change-over circuit comprises AC amplifier, the signal input part connecting valve of AC amplifier is selected and the poor output terminal that calculates circuit, the control input end of AC amplifier connects the second output terminal of measurement range selection key circuit, the amplification input end of AC amplifier connects the output terminal of gain adjusting circuit, the output terminal of AC amplifier connects the signal input part of DC amplification circuit by phase-sensitive detection circuit, the first output terminal of DC amplification circuit connects DC output circuit, the second output terminal of DC amplification circuit connects modulus, sample circuit.
3. digital display type inductance amesdial according to claim 2, is characterized in that: described microprocessor is also connected with USB interface.
4. digital display type inductance amesdial according to claim 3, is characterized in that: described range switching key comprises three range buttons, and cooperation is provided with three range pilot lamp.
5. digital display type inductance amesdial according to claim 4, is characterized in that: described toggle switch is provided with three gears, and each gear respectively connecting valve is selected and the poor control selection signal input part that calculates circuit.
6. digital display type inductance amesdial according to claim 5, it is characterized in that: described dial gauge housing front is also provided with first via inductance sensor zeroing knob, first via inductance sensor amplifies knob, No. second inductance sensor zeroing knob, No. second inductance sensor amplification knob, first via inductance sensor zeroing knob is connected with the control input end of zeroing circuit with No. second inductance sensor zeroing knob, and first via inductance sensor amplifies knob and amplifies with No. second inductance sensor the control input end that knob is connected gain adjusting circuit.
7. digital display type inductance amesdial according to claim 6, is characterized in that: described display panel adopts five-digit number code pipe to show.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320840034.2U CN203642866U (en) | 2013-12-19 | 2013-12-19 | Digital display inductance micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320840034.2U CN203642866U (en) | 2013-12-19 | 2013-12-19 | Digital display inductance micrometer |
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| Publication Number | Publication Date |
|---|---|
| CN203642866U true CN203642866U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320840034.2U Expired - Lifetime CN203642866U (en) | 2013-12-19 | 2013-12-19 | Digital display inductance micrometer |
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| CN (1) | CN203642866U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091909A (en) * | 2016-08-02 | 2016-11-09 | 无锡研奥电子科技有限公司 | A kind of inductive displacement transducer circuit |
| CN111965407A (en) * | 2020-08-18 | 2020-11-20 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Secondary circuit safety measuring equipment |
| CN115628678A (en) * | 2022-10-21 | 2023-01-20 | 北京卫星环境工程研究所 | Stainless steel plate type heat sink forming height measuring device |
-
2013
- 2013-12-19 CN CN201320840034.2U patent/CN203642866U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091909A (en) * | 2016-08-02 | 2016-11-09 | 无锡研奥电子科技有限公司 | A kind of inductive displacement transducer circuit |
| CN111965407A (en) * | 2020-08-18 | 2020-11-20 | 中国南方电网有限责任公司超高压输电公司天生桥局 | Secondary circuit safety measuring equipment |
| CN115628678A (en) * | 2022-10-21 | 2023-01-20 | 北京卫星环境工程研究所 | Stainless steel plate type heat sink forming height measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
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| CX01 | Expiry of patent term |