CN201352358Y - Titration counter - Google Patents
Titration counter Download PDFInfo
- Publication number
- CN201352358Y CN201352358Y CNU2009200194088U CN200920019408U CN201352358Y CN 201352358 Y CN201352358 Y CN 201352358Y CN U2009200194088 U CNU2009200194088 U CN U2009200194088U CN 200920019408 U CN200920019408 U CN 200920019408U CN 201352358 Y CN201352358 Y CN 201352358Y
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- sensor
- photogate
- signal
- signal receiver
- jack
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Abstract
The utility model discloses a titration counter which comprises a sensor fixer and a photoelectric door sensor. A burette jack is arranged on the sensor fixer; sensor fixing slots are respectively arranged at two sides of the burette jack; the photoelectric door sensor is inserted into the sensor fixing slots; a signal transmitter, a signal receiver, a signal transmission device and a power source are installed on the photoelectric door sensor; and the signal transmitter and the signal receiver are respectively positioned in different sensor fixing slots. The titration counter has the advantages that the titration counter counts automatically through the photoelectric door sensor and is convenient to use and accurate in counting; and the titration counter can accurately limit the positions of the burette and the photoelectric door sensor, avoids the inclination of the burette or the photoelectric door sensor caused by misoperation, and ensures precise counting of the experimental result.
Description
Technical field
The utility model relates to education experiment apparatus field, specifically is a kind of drop counter.
Background technology
In the experiment of acid base neutralization titration counting, adopt the method for the artificial reading of acid-base titration pipe to count mostly at present, but there is the inaccurate problem of counting in this method.Somebody's research, the photoelectric pulse signal that produces when utilizing drop to pass through the photogate sensor, titration experiments is carried out area of computer aided to be counted automatically, but drip several experiments for measuring drop, the position that needs manual positioning buret and photogate, inconsistent phenomenon takes place easily, causes counting inaccurate.
Summary of the invention
The utility model provides a kind of drop counter, and it can solve the deficiency that exists in the known technology, can accurately locate photogate sensor and buret, and counting accurately, and is easy to use.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of drop counter, comprise sensor holder and photogate sensor, the buret jack is set on the sensor holder, buret jack both sides are offered the sensor fixed slot respectively, sensor fixed slot interpolation is gone into the photogate sensor, signal projector, signal receiver, signal transmitting apparatus and power supply are installed on the photoelectric sensor, and signal projector is with in signal receiver lays respectively at different sensor fixed slot.Electrode jack is set on the sensor holder.Form is installed on the sensor holder.The photogate sensor is U type shape, and signal projector and signal receiver lay respectively at photogate sensor U type extension two ends, and signal projector and signal receiver equate to the distance of photogate sensor U type bottom.The sensor holder both sides are provided with anti-skidding ripple.
Advantage of the present utility model is: count automatically by the photogate sensor, easy to use, counting accurately; Can accurately limit the position of buret and photogate sensor, avoid making the problem of buret or the run-off the straight of photogate sensor, guarantee the experimental result counting accurately because of misoperation.The utility model also has following technical characterictic by increasing technical characterictic: be provided with electrode jack, and fixing pH value sensor electrode, convenient fixing, quick reduces the running program in the experimentation; Be provided with form, make things convenient for observation experiment; Simple for structure reasonable, cost is low etc.
Description of drawings
Embodiment
The contrast accompanying drawing is described further the utility model:
Agent structure of the present utility model has sensor holder 5 and photogate sensor 1, buret jack 6 is set on the sensor holder 5, offer sensor fixed slot 8 respectively in buret jack 6 both sides, sensor fixed slot 8 interpolations are gone into photogate sensor 1, signal projector 7, signal receiver 3, signal transmitting apparatus and power supply 9 are installed on the photoelectric sensor 1, and signal projector 7 is with in signal receiver 3 lays respectively at different sensor fixed slot 8.
The utility model is further characterized in that: for convenience of the electrode of fixation measuring PH, reduce experimental implementation, electrode jack 4 is set on sensor holder 5.Form 10 is installed on the sensor holder 5 described in the utility model, and the operator can observe the drip process of liquid of buret from form 10.
Among the utility model embodiment, photogate sensor 1 can have multiple structure, its optimal case is to be U type shape, signal projector 7 and signal receiver 3 lay respectively at photogate sensor 1U type extension two ends, and signal projector 7 is equal to the distance of photogate sensor 1U type bottom with signal receiver 3.This design proposal in use, signal projector 7 and signal receiver 3 accurate positionings, easy to use.Present embodiment is further characterized in that: in sensor holder 5 both sides anti-skidding ripple 2 is set, is used for fixing sensor holder 5.
Photogate sensor 1 is connected to the DIS digital information system experimentation number of chambers according on the collector by DIS data acquisition unit interface, power supply 9 adjusting modules are adjusted to the voltage that is fit to CPU, signal projector 7 and signal receiver 3 with the power supply of collector interface, for CPU, signal projector 7 and signal receiver 3 provide power supply.After photogate sensor 1 connects, signal projector 7 sends the infrared ray of continuous 940nm wavelength always, signal receiver 3 output signal not when not having drop to pass through photogate sensor 1, when drop passes through photogate sensor 1, to produce a pulse signal, and be sent to the data acquisition unit interface.CPU is connected on the collector interface by serial data interface, finishes the digital communication with the DIS data acquisition unit.
In the accompanying drawing 5, photogate sensor 1 circuit connecting relation is as follows: JC is a DIS data acquisition unit interface; U2 is CPU, adopts C8051F330 to be CPU, and J2 is a CPU programming socket; C1, E2, IR and R2 form signal projector 7; C4, E3, PD, U1A and R2 form signal receiver 3; C2, C3, E1 and U3 form the power supply adjusting module.The 1st pin of JC, the 2nd, 4 pin of J2, the 2nd pin of U2, U3, the 7th pin ground connection of U1.The pin of the positive pole of connection E1 and C3 was connected to the 6th pin of JC, another pin of C3 and the minus earth of E1 at last after the 1st, 3 pin of U3 linked to each other.The 5th pin output of U3 is as the VCC power supply of circuit.C1, C2, C4, E2 and E3 are connected between VCC and the ground wire.The plus earth of IR, anode series connection R1 is connected on the VCC later on.The negative electrode of PD meets VCC, ground connection after the anode series connection R2.The anode of PD is connected first pin of U1, and the crus secunda of U1 is the output pin of photoelectricity receiver module, is connected the 5th pin of JC.The 16th pin of U2 connects the 2nd pin of JC, and the 17th pin of U2 connects the 3rd pin of JC, and the 4th pin of U2 connects the 5th pin of J2, and the 5th pin of U2 connects the 3rd pin of J2.The 14th pin of U1 and the 3rd pin of U2 meet power supply VCC.More than the NM pin of all devices is all unsettled does not connect.
When the utility model uses, photogate sensor 1 is contained in the sensor fixed slot 8, with I type support with mould the cap bolt sensor holder 5 is fixed on the iron stand, buret is fixed on the iron stand with butterfly clamp, the buret drip puts in the buret jack 6, under buret jack 6, put a beaker, the PH electrode is placed in the electrode jack 4 blocks, photogate sensor 1 and pH value sensor are inserted outside data acquisition unit.During experiment, keep buret vertically to place, photogate sensor 1 horizontal positioned, position by fine setting photogate sensor 1, realize accurate location to buret, make plane, buret drip place vertical mutually with plane, signal receiver 3 place, the final purpose of counting automatically that realizes accurately with signal projector 7.
Claims (5)
1, a kind of drop counter, it is characterized in that: comprise sensor holder (5) and photogate sensor (1), buret jack (6) is set on the sensor holder (5), buret jack (6) both sides are offered sensor fixed slot (8) respectively, sensor fixed slot (8) interpolation is gone into photogate sensor (1), photoelectric sensor (1) go up to be installed signal projector (7), signal receiver (3), signal transmitting apparatus and power supply (9), and signal projector (7) is with in signal receiver (3) lays respectively at different sensor fixed slot (8).
2, a kind of drop counter according to claim 1 is characterized in that: electrode jack (4) is set on the sensor holder (5).
3, a kind of drop counter according to claim 1 and 2 is characterized in that: sensor holder (5) goes up installs form (10).
4, a kind of drop counter according to claim 1, it is characterized in that: photogate sensor (1) is U type shape, signal projector (7) and signal receiver (3) lay respectively at photogate sensor (1) U type extension two ends, and signal projector (7) and signal receiver (3) equate to the distance of photogate sensor (1) U type bottom.
5, according to claim 1,2 or 4 each described a kind of drop counters, it is characterized in that: sensor holder (5) both sides are provided with anti-skidding ripple (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200194088U CN201352358Y (en) | 2009-02-13 | 2009-02-13 | Titration counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200194088U CN201352358Y (en) | 2009-02-13 | 2009-02-13 | Titration counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201352358Y true CN201352358Y (en) | 2009-11-25 |
Family
ID=41375745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200194088U Expired - Lifetime CN201352358Y (en) | 2009-02-13 | 2009-02-13 | Titration counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201352358Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944618A (en) * | 2017-07-19 | 2020-03-31 | 朴序晙 | Passing device and medication management device |
-
2009
- 2009-02-13 CN CNU2009200194088U patent/CN201352358Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110944618A (en) * | 2017-07-19 | 2020-03-31 | 朴序晙 | Passing device and medication management device |
| US11576842B2 (en) | 2017-07-19 | 2023-02-14 | Coledy Inc. | Passage device and medication dose management device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG YUANDA NET + MULTIMEDIA CO., LTD. Free format text: FORMER OWNER: JING KAI Effective date: 20131010 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 250001 JINAN, SHANDONG PROVINCE TO: 250101 JINAN, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131010 Address after: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 1, Qilu Software Park Building Room 1202 Patentee after: Shandong Yuanda Net & Multimedia Co., Ltd. Address before: 250001 Shandong Province, Ji'nan Province, No. seven, No. 73, Shandong Experimental High School Patentee before: Jing Kai |
|
| CP03 | Change of name, title or address |
Address after: Xinluo Avenue high tech Zone of Ji'nan City, Shandong province 250101 Xinsheng No. 1299 Building 2 building 13-1 Patentee after: Shandong Yuanda Runwe education Polytron Technologies Inc Address before: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 1, Qilu Software Park Building Room 1202 Patentee before: Shandong Yuanda Net & Multimedia Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |
|
| CX01 | Expiry of patent term |