CN2338726Y - Electronic digital displaying inside micrometer - Google Patents
Electronic digital displaying inside micrometer Download PDFInfo
- Publication number
- CN2338726Y CN2338726Y CN 98224067 CN98224067U CN2338726Y CN 2338726 Y CN2338726 Y CN 2338726Y CN 98224067 CN98224067 CN 98224067 CN 98224067 U CN98224067 U CN 98224067U CN 2338726 Y CN2338726 Y CN 2338726Y
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- CN
- China
- Prior art keywords
- digital display
- grid
- screw rod
- measuring head
- sensor
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- Expired - Lifetime
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Abstract
The utility model discloses an electronic digital displaying inside micrometer. The utility model comprises a mechanical measuring part, a sensor and a digital display part; the mechanical measuring part comprises a casing body, a screw rod, a scale sleeve, a differential barrel and a measuring head; the sensor is a capacitance type measuring sensor composed of a movable grid and a fixed grid, the movable grid and the fixed grid are connected, and the fixed grid is fixed in the casing body; the digital display part comprises a digital display functional integrated circuit chip, the input end is connected with the fixed grid, each of control ends is connected with each of functional keys, the output end is connected with a liquid crystal display block and can also be connected with a computer through an interface. So, the digital display of measured value is realized and the utility model has the advantages of high reading precision and multiple functions.
Description
The utility model relates to a kind of measuring appliance, relates in particular to a kind of electronic digital display micrometer inside caliper.
Existing micrometer inside caliper mainly is the mechanical type micrometer inside caliper, generally is to adopt to reinforce on the milscale micrometer head to decide measuring head or three-jaw measuring head formation.The milscale micrometer head is to utilize screw thread pair principle, hold-down nut, rotating screw bolt to produce displacement, and utilize the dial sleeve that is installed in respectively on hold-down nut and the moving screw to take the reading, so just have following shortcoming: the scale division line can not really be accomplished reading value thousand minutes, as: the minimum scale value of two point form micrometer inside caliper is 0.01mm, reads less than can only estimating of 0.01mm; The minimum scale value of bikini micrometer inside caliper is 0.005mm, also can only estimate less than 0.005mm and read; Reading is not directly perceived, will do plus-minus method sometimes, influenced measuring speed, and there is parallax in reading; Function singleness can not satisfy the modern needs that detect.
The purpose of this utility model is exactly in order to overcome the shortcoming of existing micrometer inside caliper, and provide a kind of possess the convenient reading of measuring abilities such as relative measurement and absolute measurement conversion, data maintenance, data output, accurately, electronic digital display micrometer inside caliper rapidly.
The purpose of this utility model is achieved in that a kind of electronic digital display micrometer inside caliper, it is characterized in that: comprise mechanical measurement part, sensor and digital display part: described mechanical measurement partly comprises: housing, the scale cover that is connected with housing one end, be located at the interior screw rod of housing, and the microdrum of screw rod socket, and measuring head; Described sensor is the measurement by capacitance sensor, is made of moving grid and fixed grid, and a gap is arranged between moving grid and fixed grid, and described moving grid is connected with screw rod, links with screw rod; Described fixed grid is fixed in the housing; Described digital display partly comprises: a digital display function integrated circuit (IC) chip, the input end of this digital display function integrated circuit (IC) chip is connected with the fixed grid of sensor, each control end is connected with each function key, and its output terminal can be connected with liquid crystal display component, also can be connected with computing machine by an interface.
Because the utility model has adopted above structure, make micrometer inside caliper realize that the numeral of measured value shows that reading is directly perceived, the precision height really reach per mille, and function is many.
Concrete structure of the present utility model is further provided by following embodiment and accompanying drawing thereof.
Accompanying drawing one is the shape assumption diagram of the utility model embodiment;
Accompanying drawing two is A-A cut-open views of accompanying drawing one;
Accompanying drawing three is electronic digital display part electrical schematic diagrams of the foregoing description.
See also accompanying drawing:
A kind of electronic digital display micrometer inside caliper of the utility model comprises mechanical measurement part, sensor and digital display part.Its shape assumption diagram comprises as shown in Figure 1: housing 1, scale cover 12, microdrum 13, ratchet 14, measuring head 15; On housing 1, be provided with digital display guidance panel 3, the output interface 34 that guidance panel 3 is provided with function key 31, shows parts 32, battery case 33 and be connected with computing machine.
The A-A cut-open view of accompanying drawing 2 accompanying drawings 1 is provided with screw rod 11 in housing 1, with the microdrum 13 of one section socket of screw rod, the outside of screw rod connects ratchet 14; Scale cover 12 is fixed on the housing 1, with microdrum 13 end together; Measuring head 15 is the three-jaw measuring head, contacts with the other end of screw rod by a tapered rod 18.
Described sensor is the measurement by capacitance sensor, is made of moving grid and fixed grid.Described moving grid and fixed grid can be made two monotubular formulas or double-cylinder type, also can make two wafer-types, and present embodiment is that sensor is made two wafer-types 2, and its moving grid 21 is connected with screw rod 11 by key 16, links with screw rod; Fixed grid 22 is fixed in the housing; The electronic digital display micrometer inside caliper is a central axis with screw rod 11, and an elongated slot is arranged on the screw rod 11, when screw rod 11 rotates, drives sensor moving grid 21 and rotates, and guarantee that moving grid 21 and screw rod 11 have a fixing axial relative displacement.Be provided with one in moving grid 21 outsides and compress compression spring 17, its effect purpose is a push-tight moving grid 21, allow moving grid 21 when rotating retainer shaft to invariant position, promptly keep the fixed interval (FI) with fixed grid 22, moving grid 21 reaches digital display function piece because of the electric signal that relative gyration produces by connecting line with fixed grid 22, shows numerical value at last on display unit 32 after handling by large-scale application-specific integrated circuit wherein.
The output terminal of digital display function integrated circuit (IC) chip is connected with liquid crystal display component 32, direct video data, also can be connected with computing machine by an interface, carry out data processing, present embodiment is to be connected with computing machine by an output interface end 34 continued accesses one trunk interface RS232.The digital display function circuit has the positive and negative modern surveying functions such as number, absolute measurement and relative measurement, maintenance, data output of putting, and its power supply is 1.5V, is placed in the battery case 33.
The principle of work of electronic digital display part is: after the DMS integrated circuit SN6602 energized, promptly produce a series of fractional frequency signals by the crystal-oscillator circuit in it, through combination results 8 road modulation signals T1～T8 output, 45 ° of the phase shifts each other of this 8 road modulation signal, deliver to the fixed grid 22 of sensor, as the drive signal of sensor.During measurement, rotation microdrum 13, drive the moving grid 21 of turn sensor, make that sensor is moving, produce relative angular displacement between the fixed grid, changed the electric capacity of sensor, produce a variable signal A, this signal is delivered to the input end of digital display circuit SN6602 by fixed grid, behind the electric signal of digital display function piece receiving sensor, handles by the large scale integrated circuit of inside, convert numeral to and show on liquid crystal display component, its resolution can reach 0.001mm at least.The survey measurements that the output of digital display circuit shows must be consistent with the scale survey measurements of mechanical type micrometer inside caliper.
A kind of electronic digital display micrometer inside caliper of the utility model can adjust and change measuring head according to the measurement face of different size, described measuring head can be the three-jaw measuring head, contacts with the other end of screw rod by a tapered rod 18.Described measuring head also can be two point measurement heads, and the movable measuring head (not shown) that is connected with the other end at screw rod by the fixation measuring head that is provided with at the other end of housing constitutes, and the movable measuring head of rotating screw bolt just can carry out the two-point measurement.
Be example now, introduce the course of work of this chi with electronic digital display three-jaw micrometer inside caliper:
At first proofread measuring head, enter actual measurement then.During measurement measuring jaw is gently placed in the measurement body opening, make measuring jaw progressively near hole wall, the rotation ratchet, make measuring jaw be adjacent to reading numerical values behind the hole wall, displayed value at this moment is the physical size in this hole, carry out relative measurement as need, can click the ZERO/ABS key, displayed value becomes " 0.000 " at once, can carry out relative measurement.
The utility model has realized that the numeral of measured value shows that reading is directly perceived, has really accomplished the per mille reading, does not estimate reading, has eliminated parallax owing to adopted the electronic digital display technology; It has puts several functions, can set the initial size of standard and do absolute measurement, and relative measurement is done in zero setting at an arbitrary position again; When measurement finishes and inconvenience is read or when reading clearly measured value, can keep measured value, measurer is taken out the back reading from workpiece; Can also make public affairs, English system is changed arbitrarily, to satisfy the needs that outlet or introducing product are measured; And have data-out port, can connect with computing machine when needing and make data output processing or the like.
Claims (4)
1, a kind of electronic digital display micrometer inside caliper is characterized in that: comprise mechanical measurement part, sensor and digital display part:
Described mechanical measurement partly comprises: housing, the scale cover that is connected with housing one end, be located at screw rod in the housing, with the microdrum of screw rod socket, and measuring head;
Described sensor is the measurement by capacitance sensor, is made of moving grid and fixed grid, and a gap is arranged between moving grid and fixed grid, and described moving grid is connected with screw rod, links with screw rod; Described fixed grid is fixed in the housing;
Described digital display partly comprises: a digital display function integrated circuit (IC) chip, the input end of this digital display function integrated circuit (IC) chip is connected with the fixed grid of sensor, each control end is connected with each function key, and its output terminal can be connected with the liquid crystal parts, also can be connected with computing machine by an interface.
2, a kind of electronic digital display micrometer inside caliper according to claim 1, it is characterized in that: described measuring head is the three-jaw measuring head, contacts with the other end of screw rod by a tapered rod.
3, a kind of electronic digital display micrometer inside caliper according to claim 1 is characterized in that: described measuring head is two point measurement heads, is made of with the movable measuring head that is connected with the screw rod other end the fixation measuring head in the other end setting of housing.
4, a kind of electronic digital display micrometer inside caliper according to claim 1 is characterized in that: described output signal can be connected with computing machine by a trunk interface RS232.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98224067 CN2338726Y (en) | 1998-05-21 | 1998-05-21 | Electronic digital displaying inside micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98224067 CN2338726Y (en) | 1998-05-21 | 1998-05-21 | Electronic digital displaying inside micrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2338726Y true CN2338726Y (en) | 1999-09-15 |
Family
ID=33975017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98224067 Expired - Lifetime CN2338726Y (en) | 1998-05-21 | 1998-05-21 | Electronic digital displaying inside micrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2338726Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806576A (en) * | 2010-03-31 | 2010-08-18 | 欧俊 | Digital display escalator detection ruler |
| CN105551214A (en) * | 2014-10-22 | 2016-05-04 | 株式会社三丰 | Measurement transmission system for handheld metrology tools |
| CN105783632A (en) * | 2015-12-26 | 2016-07-20 | 深圳市易特科信息技术有限公司 | Resistor screw measuring apparatus |
| CN107796278A (en) * | 2017-09-28 | 2018-03-13 | 中国航发动力股份有限公司 | A kind of aero-engine casing and blade edge plate welding seams width measuring tool |
-
1998
- 1998-05-21 CN CN 98224067 patent/CN2338726Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806576A (en) * | 2010-03-31 | 2010-08-18 | 欧俊 | Digital display escalator detection ruler |
| CN105551214A (en) * | 2014-10-22 | 2016-05-04 | 株式会社三丰 | Measurement transmission system for handheld metrology tools |
| CN105783632A (en) * | 2015-12-26 | 2016-07-20 | 深圳市易特科信息技术有限公司 | Resistor screw measuring apparatus |
| CN107796278A (en) * | 2017-09-28 | 2018-03-13 | 中国航发动力股份有限公司 | A kind of aero-engine casing and blade edge plate welding seams width measuring tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |