CN105716652B - A kind of detector circuit - Google Patents
A kind of detector circuit Download PDFInfo
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- CN105716652B CN105716652B CN201410727312.2A CN201410727312A CN105716652B CN 105716652 B CN105716652 B CN 105716652B CN 201410727312 A CN201410727312 A CN 201410727312A CN 105716652 B CN105716652 B CN 105716652B
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- reversing switch
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Abstract
The invention provides a kind of detector circuit, it is characterised in that including 6 spring hole scokets (1), reversing switch (2), AL808 adjusters (3), the first battery module (4), current-limiting resistance (5), selecting switch (6), potentiometer (7), the second battery module (9), power switch (10), battery (11), charge port (12).
Description
Technical field
The present invention relates to a kind of detector circuit, suitable for detection force value, strain, temperature, voltage (millivolt level), electric current
(milliampere level) etc..
Background technology
At present during my institute's aircraft structure strength experiment, in experiment of weighing part, hanging experiment (need not load), prison
Control inner gas pressure value of feedback, simple strain/displacement measurement and detection electric thermo-couple temperature will also be set using large-scale control system
Standby, measuring apparatus and other related equipment, in order to cost-effective, efficiency is improved so as to develop a kind of detector.The detector
The data of the multinomial types such as voltage (millivolt level), electric current (milliampere level) can also be measured.Digital multimeter used in the market is surveyed
It is easy to use to measure voltage, electric current, but because it is without amplifying circuit, for measurement voltage (millivolt level), electric current (milliampere level), essence
Spend it is relatively low, if increase figure place showing Agilent (Agilent), fluke (Fluke) instrument, price more than ten thousand yuan, and
And digital multimeter is unable to the other types data such as measurement temperature, strain, therefore, it is necessary to develop a kind of and ordinary numbers general-purpose
Table is close, small volume, easy to carry, and with a kind of detection more accurately detector.
The content of the invention
(1) goal of the invention
It is an object of the invention to provide a kind of portable type measuring instrument, for measure force value, strain, voltage (millivolt level),
The polymorphic type numerical value such as electric current (milliampere level).
A kind of detector circuit, it is characterised in that including 6 spring hole scokets (1), reversing switch (2), AL808 adjusters (3),
First battery module (4), current-limiting resistance (5), selecting switch (6), potentiometer (7), the second battery module (9), power switch
(10), battery (11), charge port (12)；
Charge port connection is connected with the input of battery；
Battery output is connected to the defeated of the first battery module and the second battery module by two power switches of parallel connection
Enter on end；
In the both positive and negative polarity for the input that the both positive and negative polarity of second battery module output end is respectively connected to AL808 adjusters；
The positive output end of first battery module is linked on potentiometer 7-2 contacts by current-limiting resistance all the way, another
Road is accessed in 6 spring hole scoket 1-1 holes, and its negative sense is accessed in 6 spring hole scoket 1-4 holes；
7-1 and 7-3 contacts in potentiometer pass through 2-2 the and 2-5 contacts in access reversing switch in selecting switch respectively；
The 2-1 positions of reversing switch are accessed in 6 spring hole scoket 1-2 holes, and the 2-1 positions of reversing switch turn on 2-6 positions；1-
The 17th of No. 3 hole access AL808 adjusters；In 2-3,2-4 position of 1-5 holes access reversing switch；1-6 holes are accessed
On the 20th of AL808 adjusters；
The 19th of the 2-2 positions access AL808 adjusters of reversing switch；The 18th of 2-5 positions access AL808 adjusters
Position.
Further, in addition to detection hole (8), detection hole is respectively connected on the 2-2 positions and 2-5 positions of reversing switch,
Primarily to detect numerical value provider just using digital multimeter.
Further, the first battery module uses DF512S5 battery modules, and the first battery module uses DF512S24 batteries
Module.DF512S5 battery modules, mainly provide 5V bridge pressures to measurement force value or when straining.DF512S24 battery modules, mainly
It is to provide 24V DC voltages to AL808 adjusters.
Have the advantage that compared with prior art or good effect
In actual applications, the equipment that the invention solves the numerical value that can measure polymorphic type using an equipment at present, property
Valency solves the problems, such as that digital voltmeter can not measure voltage (millivolt level) and electric current (milliampere level) than high.Can be with a variety of biographies
Sensor adapted, composition special detection device simple in construction, easy to operate, internal battery enable detector under the conditions of without civil power
Work, strong antijamming capability, the occasion particularly suitable for inclement condition use, and have preferable economic benefit.
Brief description of the drawings
Fig. 1 is detector circuit connection diagram.Wherein, 1-6 spring hole scoket, 2-reversing switch (K3), 3-AL808 are adjusted
Section device, 4-DF512S5 battery modules, 5-current-limiting resistance (R), 6-selecting switch (K2), 7-potentiometer, 8-detection hole,
9-DF512S24 battery modules, 10-power switch (K1), 11-battery (16.8V, 3200mAh), 12-charge port.
Embodiment
Wherein：
1-6 spring hole scokets, different types of numerical value (force value, strain, thermocouple, voltage, electric current etc.) is being measured, selection is not
Same jack carries out signal input/output use；
2-reversing switch K3, expand instrument indication range ,-1999 to 9999 can be shown under normal circumstances, increase commutation
After switch, displayable range is：±9999；If input signal is timing, 2, which connect 1,5, connects 4 and measures；If input signal is
When negative, 2, which connect 3,5, connects 6 and measures.
3-AL808 adjusters, by the object of test different types, input the parameter of setting, show the number of testee
Value, and the numerical value of increase/reduction flicker charactron, refer to the device description book；
4-DF512S5 battery modules, 5V voltages are provided to potentiometer；
5-current-limiting resistance R, resistance is 20k Ω, by current control in the range of 0-20mA；
6-selecting switch K2, when measurement force snesor, foil gauge, magnetic field strength transducer are returned to zero, need to close；
When measuring electric current, voltage, temperature, during without returning to zero, then disconnect；
7-potentiometer, play a part of to adjust the size of voltage (containing DC voltage and signal voltage) and electric current；
8-detection hole, for whether detecting input signal more than the range of signal for having inputted setting, it can be carried out with universal meter
Whether tracing detection goes beyond the scope.When sensor returns to zero, it is also possible to which universal meter detection, tracking zeroing are (with the rotation on potentiometer
Button is returned to zero), before zeroing, if sensor feedback exceeds adjuster indication range, first it can pass through detection hole with universal meter
It has been shown that, wait after being transferred in adjuster indication range, be then not required to universal meter and show, main rise provides work easy to detect
With.
9-DF512S24 battery modules, 24V DC voltages are provided to AL808 adjusters；
10-power switch K1, the effect power on/off for control circuit；
11-rechargeable battery (14.4V, 3500mA), powered to circuit.
12-charge port, the effect that external power supply charges the battery.
The inventive method is divided into following steps when being embodied：
As shown in figure 1, charge port is connected on battery, to be charged to rechargeable battery；
A) battery output is connected on two battery modules by power switch K1；
B) both positive and negative polarity of DF512S24 battery modules is respectively connected in the both positive and negative polarity of the input of AL808 adjusters；
C) battery module DF512S5 positive output is linked on potentiometer 7-2 by current-limiting resistance R all the way, is connect all the way
Enter in 6 spring hole scoket 1-1 holes, its negative sense is accessed in 6 spring hole scoket 1-4 holes；
D) on 7-1 the and 7-3 contacts access selecting switch K2 in potentiometer, remaining two contacts access commutation and opened in its K2
Close the 2-2 and 2-5 in K3；
E) detection hole is respectively connected on reversing switch K3 2-2 positions and 2-5 positions；
F) 6 spring hole scoket 1-2 holes access reversing switch K3 2-1 positions (are led reversing switch K3 2-1 positions with 2-6 positions
It is logical)；The 17th of 1-3 holes access AL808 adjusters；In 1-5 holes access reversing switch K3 2-3,2-4 position；1-6 hole positions connect
Enter on the 20th of AL808 adjusters；
G) the 19th of reversing switch K3 2-2 positions access AL808 adjusters；2-5 positions access AL808 adjusters
18th；
H) according to different sensors, it is necessary to set corresponding parameter, detector directly displays corresponding physical quantity, intelligence
Digital display major parameter has：Input signal types, input reference signal, input signal up/down limit, primary input translation amendment
Value, scaling position and filter factor etc.；
I) thermocouple detection temperature
Thermocouple is inserted to 1-2,1-5 position of 6 spring hole scokets.1-2 positions are linked into by reversing switch 2-1 to 2-2
The 19th in AL808 adjusters, 1-5 positions are linked into the 18th in AL808 adjusters by reversing switch 2-4 to 2-5
On, its dut temperature is shown on AL808 adjusters；- 100.0 DEG C of indication range --- 800.0 DEG C, measurement accuracy ±
0.2%；
J) thermal resistance detection temperature
From 1-2,1-5,1-6 position of 6 spring hole scokets, 1-2 positions are linked into AL808 by reversing switch 2-1 to 2-2 and adjusted
Save the 19th in device, on the 18th that 1-5 positions are linked into AL808 adjusters by reversing switch 2-4 to 2-5,1-6
Position is directly connected on the 20th in AL808 adjusters, -199.9 DEG C of indication range -- and 600 DEG C, measurement accuracy ± 0.2%；
K) magnetic probe detection magnetic field intensity is surveyed
From 1-1,1-3,1-4 position of 6 spring hole scokets,
1) S poles are measured
Reversing switch K3 2-1 and 2-2 conducting, 2-4 turn on 2-5；
2) N poles are measured
Reversing switch K3 2-2 and 2-3 conducting, 2-5 turn on 2-6；
Selecting switch K2 is closed, sensor is returned to zero by the knob on potentiometer, then measures pole again
It is worth size.With this meter demarcation indication range 0---50.00MT (S, N) of high accuracy；
L) force value sensor measurement force value
Sensor is accessed to 1-1,1-2,1-4,1-5 position of 6 spring hole scokets.Wherein 1-1 (+), 1-4 (-) connect sensor
Positive and negative bridge line ball, 1-2 (+), 1-5 (-) position connect the positive and negative feedback signal wire of sensor.
1) pulling force is measured
Reversing switch K3 2-1 and 2-2 conducting, 2-4 are turned on 2-5, and the feedback signal of sensor is arrived by reversing switch
On AL808 adjusters, and selecting switch K2 is closed, then 7-1,7-3 position of potentiometer are linked into by selecting switch
On AL808 adjusters on the 19th, 18；
2) measurement pressure reversing switch K3 2-2 and 2-3 conducting, 2-5 turn on 2-6, and the feedback signal of sensor passes through
Reversing switch closes selecting switch K2 on AL808 adjusters, then is opened by selection 7-1,7-3 position of potentiometer
Pass is linked on AL808 adjusters on the 19th, 18；
Sensor is returned to zero by the knob on potentiometer first, then measures force value size again.If adjusting
Before zero, its adjuster shows overproof scope, and available digital universal meter is first shown by detection hole, until being adjusted to AL808
When in adjuster indication range, indication range ± 99.99kN, measurement accuracy ± 0.2%；
M) arch extensometer measurement displacement
It is consistent with measurement force value connection.Gauge length 100mm, deflection ± 20mm, measurement accuracy ± 0.5%；
N) resistance-type displacement meter measurement displacement
From 1-1,1-2,1-4,1-6 position of 6 spring hole scokets, 0-10mm of stroke, measurement accuracy 0.5%；
O) voltage (millivolt level) is measured
1-2 (+), 1-5 (-) position from 6 spring hole scokets, measurement 0-5V then select 1-2 (+), the 1-6 (-) of 6 spring hole scokets
Position；
P) DC current (milliampere level) is measured
From 1-2,1-5 position of 6 spring hole scokets, and in 1-2 positions and 1-5 positions resistance in parallel one 500 ohm.
Claims (3)
- A kind of 1. detector circuit, it is characterised in that including 6 spring hole scokets (1), reversing switch (2), AL808 adjusters (3), One battery module (4), current-limiting resistance (5), selecting switch (6), potentiometer (7), the second battery module (9), power switch (10), Battery (11), charge port (12)；Charge port connection is connected with the input of battery；Battery output is connected to the input of the first battery module and the second battery module by two power switches of parallel connection On；In the both positive and negative polarity for the input that the both positive and negative polarity of second battery module output end is respectively connected to AL808 adjusters；The positive output end of first battery module is linked on potentiometer 7-2 contacts by current-limiting resistance all the way, and another way connects Enter in 6 spring hole scoket 1-1 holes, its negative sense is accessed in 6 spring hole scoket 1-4 holes；7-1 and 7-3 contacts in potentiometer pass through 2-2 the and 2-5 contacts in access reversing switch in selecting switch respectively；The 2-1 positions of reversing switch are accessed in 6 spring hole scoket 1-2 holes, and the 2-1 positions of reversing switch turn on 2-6 positions；No. 1-3 The 17th of hole access AL808 adjusters；In 2-3,2-4 position of 1-5 holes access reversing switch；AL808 is accessed in 1-6 holes On the 20th of adjuster；The 19th of the 2-2 positions access AL808 adjusters of reversing switch；The 18th of 2-5 positions access AL808 adjusters.
- 2. detector circuit according to claim 1, it is characterised in that also including detection hole (8), detection hole is respectively connected to On the 2-2 positions of reversing switch and 2-5 positions.
- 3. detector circuit according to claim 1, it is characterised in that the first battery module (4) uses DF512S5 batteries Module, the second battery module (9) use DF512S24 battery modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727312.2A CN105716652B (en) | 2014-12-03 | 2014-12-03 | A kind of detector circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727312.2A CN105716652B (en) | 2014-12-03 | 2014-12-03 | A kind of detector circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105716652A CN105716652A (en) | 2016-06-29 |
| CN105716652B true CN105716652B (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410727312.2A Active CN105716652B (en) | 2014-12-03 | 2014-12-03 | A kind of detector circuit |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253712B (en) * | 2021-07-06 | 2021-12-07 | 成都飞机工业（集团）有限责任公司 | Test loading control system and calibration method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205863U (en) * | 1987-03-28 | 1988-02-17 | 国营南京尧辰机械厂 | Digital temperature range measurer |
| CN1093048A (en) * | 1994-03-18 | 1994-10-05 | 北京交通大学 | Monitoring and discriminating system for shaft temperature |
| CN202255275U (en) * | 2011-10-17 | 2012-05-30 | 北京铁科工程检测中心 | Portable strain measurement instrument |
| CN202339403U (en) * | 2011-11-09 | 2012-07-18 | 四川海天仪表电器开发有限公司 | Universal electric instrument detector for vehicle chassis |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090171170A1 (en) * | 2007-12-28 | 2009-07-02 | Nellcor Puritan Bennett Llc | Medical Monitoring With Portable Electronic Device System And Method |
-
2014
- 2014-12-03 CN CN201410727312.2A patent/CN105716652B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205863U (en) * | 1987-03-28 | 1988-02-17 | 国营南京尧辰机械厂 | Digital temperature range measurer |
| CN1093048A (en) * | 1994-03-18 | 1994-10-05 | 北京交通大学 | Monitoring and discriminating system for shaft temperature |
| CN202255275U (en) * | 2011-10-17 | 2012-05-30 | 北京铁科工程检测中心 | Portable strain measurement instrument |
| CN202339403U (en) * | 2011-11-09 | 2012-07-18 | 四川海天仪表电器开发有限公司 | Universal electric instrument detector for vehicle chassis |
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| Publication number | Publication date |
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| CN105716652A (en) | 2016-06-29 |
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