CN203275620U - Automatic zero-clearing and no zero-drift electronic integration digit fluxmeter - Google Patents
Automatic zero-clearing and no zero-drift electronic integration digit fluxmeter Download PDFInfo
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- CN203275620U CN203275620U CN 201320092358 CN201320092358U CN203275620U CN 203275620 U CN203275620 U CN 203275620U CN 201320092358 CN201320092358 CN 201320092358 CN 201320092358 U CN201320092358 U CN 201320092358U CN 203275620 U CN203275620 U CN 203275620U
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Abstract
The utility model provides an automatic zero-clearing and no zero-drift electronic integration digit fluxmeter, which is mainly used for precision measurement of magnetic flux of magnetic field, can automatically remove zero drift of an electronic integrator and overcome the deficiency that the measurement accuracy and efficiency of a conventional electronic integrator is significantly affected due to the presence of zero drift defects on the principle. The automatic zero-clearing and no zero-drift electronic integration digit fluxmeter is composed of a casing, a power supply, an induction coil, an electronic integrator, a zero set circuit, an isolation matcher, a digital display, a measurement finish recognizer, and an electronic control zero-clearing switch. The automatic zero-clearing and no zero-drift electronic integration digit fluxmeter is characterized in that an automatic zero-clearing circuit is composed of the measurement finish recognizer and the electronic control zero-clearing switch, the output terminal of the isolation matcher is connected with the input terminal of the measurement finish recognizer, the output terminal of the measurement finish recognizer is connected with the input terminal of the electronic control zero-clearing switch, and a normally open contact of the electronic control zero-clearing switch is connected with the zero clearing terminal of the electronic integrator. When the measurement is completed, the automatic zero-clearing circuit automatically clears zero for the electronic integrator every time.
Description
Technical field
The utility model provides a kind of automatic clear without drift electronic accumulation numeral fluxmeter, is mainly used in the precision measurement of magnetic field magnetic flux, is widely used in research, production field and the automation field of magnetisable material and device.
At present, generally adopt the electronic accumulation technical design to make fluxmeter both at home and abroad, but there is very formidable principle zero point drift defective in this technology, obviously affects measuring accuracy and efficient.Although developed the electronic integrator of multiple lower drift both at home and abroad at present, but still be difficult to satisfy fully request for utilization.People in the process of using the electronic accumulation fluxmeter, in order to reduce zero point drift to the impact of measuring accuracy as far as possible, hand reset and manual zero clearing frequently that must be frequently.
The purpose of this utility model is to provide a kind of automatic clear without drift electronic accumulation numeral fluxmeter, has overcome present electronic accumulation fluxmeter because existing principle zero point drift defective obviously to affect the deficiency of measuring accuracy and efficient.
Realize that the technical solution of the utility model is:
A kind of automatic clear is without drift electronic accumulation numeral fluxmeter, it is comprised of casing, power supply, inductive coil, electronic integrator, zeroing circuit, isolation adaptation, digital indicator and the complete recognizer of measurement, automatically controlled reset switch, its principal character is: form automatic reset circuit by measuring complete recognizer and automatically controlled reset switch, isolation adaptation output terminal connects measures complete recognizer input end, measure complete recognizer output terminal and connect automatically controlled reset switch input end, automatically controlled reset switch is often opened and is controlled contact connecting electronic integrator clear terminal.
The principle of work of automatic reset circuit is: measure each time when complete, measure complete recognizer and identify the complete moment of measurement from isolation adaptation output signal, and produce a pulse signal and remove to trigger automatically controlled reset switch, automatically controlled reset switch action makes the electronic integrator zero clearing.
The annexation of other circuit and principle of work in technical scheme know that on business reason will not illustrate.
The beneficial effects of the utility model are:
Through contrasting with several domestic brand numeral fluxmeters of the same type, zero point drift of the present utility model and efficient outclass brand product, and concrete data are as shown in table 1.
Table 1
Description of drawings
Fig. 1 is the utility model the first embodiment electricity theory diagram.
Fig. 2 is the utility model the second embodiment electricity theory diagram.
Fig. 3 is the third embodiment electricity theory diagram of the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
the first embodiment as shown in Figure 1, by casing, power supply, inductive coil, electronic integrator, zeroing circuit, the isolation adaptation, digital indicator and the complete recognizer of measurement, automatically controlled reset switch forms, inductive coil connecting electronic integrator input end, zeroing circuit output terminal connecting electronic integrator zeroing end, the electronic integrator output terminal connects isolation adaptation input end, isolation adaptation output terminal connects the digital indicator input end and measures complete recognizer input end, measure complete recognizer output terminal and connect automatically controlled reset switch input end, automatically controlled reset switch is often opened and is controlled contact connecting electronic integrator clear terminal.Measure each time when complete, measure complete recognizer and identify from isolation adaptation output signal and measure the complete moment, and produce a pulse signal and remove to trigger automatically controlled reset switch, automatically controlled reset switch action, often open and control junction closure once, make the electronic integrator zero clearing once.The zero clearing retention time is adjustable, facts have proved, when carrying out continuously and quickly measuring, the zero clearing retention time is set as 1 second for good.
the second embodiment as shown in Figure 2, by casing, power supply, inductive coil, electronic integrator, zeroing circuit, the isolation adaptation, digital indicator and the initial recognizer of measurement, measure complete recognizer, latch, automatically controlled reset switch forms, inductive coil connecting electronic integrator input end, zeroing circuit output terminal connecting electronic integrator zeroing end, the electronic integrator output terminal connects isolation adaptation input end, isolation adaptation output terminal connects the digital indicator input end and measures complete recognizer input end, measure complete recognizer output terminal connection latch and set to 0 end, measure initial recognizer output terminal connection latch and put 1 end, the latch output terminal connects automatically controlled reset switch input end, the normally closed control contact of automatically controlled reset switch connecting electronic integrator clear terminal.When not measuring, the latch output terminal keeps low level, and automatically controlled reset switch is not worked, and normally closed control contact remains closed, and electronic integrator keeps cleared condition always.When measuring, to measure initial recognizer and at first produce an initial identification signal and send latch to put 1 end, the latch output terminal is high level by low transition, automatically controlled reset switch work, normally closed control contact disconnects, and electronic integrator is removed cleared condition, and is in running order.Measure when complete, measure complete recognizer and identify the complete moment of measurement from isolation adaptation output signal, and produce a pulse signal and send latch to set to 0 end, the latch output terminal is converted to low level by high level, automatically controlled reset switch quits work, normally closed control contact resets, and electronic integrator is got back to cleared condition.
the third embodiment as shown in Figure 3, by casing, power supply, inductive coil, electronic integrator, zeroing circuit, the isolation adaptation, digital indicator and the initial recognizer of measurement, measure complete recognizer, latch, automatically controlled reset switch and mode selection switch K form, inductive coil connecting electronic integrator input end, zeroing circuit output terminal connecting electronic integrator zeroing end, the electronic integrator output terminal connects isolation adaptation input end, isolation adaptation output terminal connects the digital indicator input end and measures complete recognizer input end, measure complete recognizer output terminal and connect 5 ends that latch sets to 0 end and K, the latch output terminal connects 4 ends of K, 6 ends of K connect automatically controlled reset switch input end, automatically controlled reset switch is controlled a wherein end of contact common port connecting electronic integrator clear terminal, normally closed control contact connects 1 end of K, often open and control 2 ends that contact connects K, the 3 end connecting electronic integrator clear terminals of K are the other end wherein.Two kinds of automatic clear pattern enabled mode selector switch K select wherein a kind of, when K is placed in 5 and 6 logical, 2 and 3 logical position, are equal to the first embodiment, during, 1 and 3 logical position 4 and 6 logical when K is placed in, are equal to the second embodiment.
Claims (1)
1. an automatic clear is without drift electronic accumulation numeral fluxmeter, it is comprised of casing, power supply, inductive coil, electronic integrator, zeroing circuit, isolation adaptation, digital indicator and the complete recognizer of measurement, automatically controlled reset switch, its principal character is: form automatic reset circuit by measuring complete recognizer and automatically controlled reset switch, isolation adaptation output terminal connects measures complete recognizer input end, measure complete recognizer output terminal and connect automatically controlled reset switch input end, automatically controlled reset switch is often opened and is controlled contact connecting electronic integrator clear terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092358 CN203275620U (en) | 2013-02-28 | 2013-02-28 | Automatic zero-clearing and no zero-drift electronic integration digit fluxmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320092358 CN203275620U (en) | 2013-02-28 | 2013-02-28 | Automatic zero-clearing and no zero-drift electronic integration digit fluxmeter |
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| Publication Number | Publication Date |
|---|---|
| CN203275620U true CN203275620U (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320092358 Expired - Fee Related CN203275620U (en) | 2013-02-28 | 2013-02-28 | Automatic zero-clearing and no zero-drift electronic integration digit fluxmeter |
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| CN (1) | CN203275620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981849A (en) * | 2018-07-26 | 2018-12-11 | 宁波海壹生物科技有限公司 | A kind of fluid level detection system and method for Medical Instruments |
| CN110138341A (en) * | 2018-02-02 | 2019-08-16 | 上海复旦微电子集团股份有限公司 | A kind of signal demodulating circuit |
-
2013
- 2013-02-28 CN CN 201320092358 patent/CN203275620U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138341A (en) * | 2018-02-02 | 2019-08-16 | 上海复旦微电子集团股份有限公司 | A kind of signal demodulating circuit |
| CN110138341B (en) * | 2018-02-02 | 2023-11-14 | 上海复旦微电子集团股份有限公司 | Signal demodulation circuit |
| CN108981849A (en) * | 2018-07-26 | 2018-12-11 | 宁波海壹生物科技有限公司 | A kind of fluid level detection system and method for Medical Instruments |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xie Binglian Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20200228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |