CN203758657U - Dynamometer - Google Patents
Dynamometer Download PDFInfo
- Publication number
- CN203758657U CN203758657U CN201420090644.XU CN201420090644U CN203758657U CN 203758657 U CN203758657 U CN 203758657U CN 201420090644 U CN201420090644 U CN 201420090644U CN 203758657 U CN203758657 U CN 203758657U
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- CN
- China
- Prior art keywords
- sensor
- output terminal
- chip
- input end
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000003321 amplification Effects 0.000 claims abstract description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 2
- 230000003068 static effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Disclosed in the utility model is a dynamometer comprising a sensing device and a hand-held device. The sensing device consists of a sensor pedestal, a sensor, a sensor force-measuring head and a sensor limiting sheet; one side of the sensor is fixed at the sensor pedestal; the sensor force-measuring head and the sensor limiting sheet are fixed at the other side of the sensor; and the sensor limiting sheet is arranged between the sensor force-measuring head and the sensor. In addition, the hand-held device includes a display, a signal amplifier, and a power supply for providing electric energy; the input terminal of the signal amplification circuit is connected with the output terminal of the sensor; and the output terminal of the signal amplifier is connected with the input terminal of the display. With the dynamometer, the pressure between two pressing sheets of the static contact can be detected precisely.
Description
Technical field
The utility model belongs to measuring instrument field, is specifically related to a kind of dynamometer.
Background technology
Dynamometer is a kind of instrument that detects object receiving force, traditional dynamometer does not have the equipment of pressure between two compressing tablets of special detection break, but while adopting existing dynamometer to detect the pressure between two compressing tablets of break, the precision of measuring is low, and measuring position can not determine it is same position, thereby can not accurately measure the force value of same point.
Utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, and a kind of dynamometer is provided, and this dynamometer can accurately detect the pressure between two compressing tablets of break.
For achieving the above object, dynamometer described in the utility model comprises sensing device and hand-held device;
Described sensing device comprises sensor base, sensor, sensor dynamometry head and sensor banking stop, one side of sensor is fixed in sensor base, sensor dynamometry head and sensor banking stop are fixed on the opposite side of sensor, and sensor banking stop is between sensor dynamometry head and sensor;
Described hand-held device comprises display, signal amplifier and for the power supply of electric energy is provided, the input end of signal amplification circuit is connected with the output terminal of sensor, and the output terminal of signal amplifier is connected with the input end of display.
One side of described sensor is connected by the first screw with sensor base, and the second screw is socketed in sensor dynamometry head and sensor, sensor banking stop and sensor dynamometry head are fixedly connected with after through the opposite side of sensor and sensor banking stop;
One side of described sensor base is stepped ramp type structure.
The output terminal of described sensor is connected by cable with the input end of signal amplifier.
Described hand-held device also comprises current foldback circuit, anti-current break holding circuit and for preventing that power positive cathode from connecing anti-anti-reverse power connection circuit; the input end of the input end of current foldback circuit, the input end of anti-current break holding circuit and anti-reverse power connection circuit is all connected with the output terminal of power supply, and the output terminal of the output terminal of current foldback circuit, the output terminal of anti-current break holding circuit and anti-reverse power connection circuit is all connected with the control end of power supply.
Described signal amplifier is AD623 chip;
Described power supply comprises chargeable lithium cell, TPS78950 chip and ICL7660 chip, chargeable lithium cell is connected with the input end of TPS78950 chip, the output terminal of TPS78950 chip is divided into two-way, wherein a road is connected with the positive source of AD623 chip, and another road is connected with the power cathode of AD623 chip through ICL7660 chip.
Described sensor is resistance strain type sensor, and the model of sensor is microsensor 2C1.
The utlity model has following beneficial effect:
Dynamometer described in the utility model comprises sensing device and hand-held device, sensing device comprises sensor base, sensor, sensor dynamometry head and sensor banking stop, hand-held device comprises display, signal amplifier and power supply, in measuring process, sensor is inserted between two piezoelectric patches, and undertaken spacing by sensor banking stop, when sensor is subject to used time of doing of power, produce electric signal, and described electric signal is input in signal amplifier, described electric signal is input in display after signal amplifier amplifies, display can accurately show the pressure between two compressing tablets of break, easy to operate, simply.
Brief description of the drawings
Fig. 1 is the structural representation of sensing device in the utility model;
Fig. 2 is the vertical view of sensing device in the utility model.
Wherein, 1 is that the first screw, 2 is that sensor banking stop, 3 is that sensor dynamometry head, 4 is that the second screw, 5 is that sensor, 6 is sensor base.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to figure 1 and Fig. 2, dynamometer described in the utility model comprises sensing device and hand-held device; Described sensing device comprises sensor base 6, sensor 5, sensor dynamometry 3 and sensor banking stop 2, one side of sensor 5 is fixed in sensor base 6, sensor dynamometry 3 and sensor banking stop 2 are fixed on the opposite side of sensor 5, and sensor banking stop 2 is between sensor dynamometry 3 and sensor 5; Described hand-held device comprises display, signal amplifier and for the power supply of electric energy is provided, the input end of signal amplification circuit is connected with the output terminal of sensor 5, and the output terminal of signal amplifier is connected with the input end of display.Described hand-held device also comprises current foldback circuit, anti-current break holding circuit and for preventing that power positive cathode from connecing anti-anti-reverse power connection circuit; the input end of the input end of current foldback circuit, the input end of anti-current break holding circuit and anti-reverse power connection circuit is all connected with the output terminal of power supply; the output terminal of the output terminal of current foldback circuit, the output terminal of anti-current break holding circuit and anti-reverse power connection circuit is all connected with the control end of power supply; sensor 5 is resistance strain type sensor, and the model of sensor 5 is microsensor 2C1.
It should be noted that, one side of described sensor 5 is connected by the first screw 1 with sensor base 6, and the second screw 4 is socketed on after through the opposite side of sensor 5 and sensor banking stop 2 in sensor dynamometry 3 and sensor 5, sensor banking stop 2 and sensor dynamometry 3 is fixedly connected with; One side of described sensor base 6 is stepped ramp type structure, and the output terminal of sensor 5 is connected by cable with the input end of signal amplifier.In addition, described signal amplifier is AD623 chip, power supply comprises chargeable lithium cell, TPS78950 chip and ICL7660 chip, chargeable lithium cell is connected with the input end of TPS78950 chip, the output terminal of TPS789500 chip is divided into two-way, wherein a road is connected with the positive source of AD623 chip, and another road is connected with the power cathode of AD623 chip through ICL7660 chip.
Specific works process of the present utility model is:
In measuring process, sensor 5 is inserted between two piezoelectric patches, and undertaken spacing by sensor banking stop 2, sensor dynamometry 3 senses extraneous acting force, and by described force transmission in sensor 5, described acting force is converted into electric signal by sensor 5, and described electric signal is delivered in signal amplification appliance, signal amplifier amplifies described electric signal, signal after amplification finally shows by display, user can check the pressure between two compressing tablets of break by display, in addition in the time that the output current of power supply is excessive, current protecting circuit automatic cut-off power, in the time that the output current of power supply is undergone mutation, anti-current break holding circuit automatic cut-off power, when the both positive and negative polarity of power supply connects inverse time, anti-reverse power connection circuit automatic cut-off power, thus realize the protection of omnibearing dynamometer described in the utility model.
In addition, the output voltage of chargeable storage is 9V, the 9V voltage transitions of TPS78950 chip chargeable storage output is 5V voltage, ICL7660 chip by the 5V voltage transitions of TPS78950 chip output is-5V voltage, thereby employing ± 5V dual power supply, for signal amplification chip AD623 chip provides power supply, so just can amplify the multiple needing by faint electric signal.
Claims (6)
1. a dynamometer, is characterized in that, comprises sensing device and hand-held device;
Described sensing device comprises sensor base (6), sensor (5), sensor dynamometry head (3) and sensor banking stop (2), one side of sensor (5) is fixed in sensor base (6), sensor dynamometry head (3) and sensor banking stop (2) are fixed on the opposite side of sensor (5), and sensor banking stop (2) is positioned between sensor dynamometry head (3) and sensor (5);
Described hand-held device comprises display, signal amplifier and for the power supply of electric energy is provided, the input end of signal amplification circuit is connected with the output terminal of sensor (5), and the output terminal of signal amplifier is connected with the input end of display.
2. dynamometer according to claim 1, is characterized in that,
One side of described sensor (5) is connected by the first screw (1) with sensor base (6), and the second screw (4) is socketed in sensor dynamometry head (3) and sensor (5), sensor banking stop (2) and sensor dynamometry head (3) are fixedly connected with after through the opposite side of sensor (5) and sensor banking stop (2);
One side of described sensor base (6) is stepped ramp type structure.
3. dynamometer according to claim 1, is characterized in that, the output terminal of described sensor (5) is connected by cable with the input end of signal amplifier.
4. dynamometer according to claim 1; it is characterized in that; described hand-held device also comprises current foldback circuit, anti-current break holding circuit and for preventing that power positive cathode from connecing anti-anti-reverse power connection circuit; the input end of the input end of current foldback circuit, the input end of anti-current break holding circuit and anti-reverse power connection circuit is all connected with the output terminal of power supply, and the output terminal of the output terminal of current foldback circuit, the output terminal of anti-current break holding circuit and anti-reverse power connection circuit is all connected with the control end of power supply.
5. dynamometer according to claim 1, is characterized in that,
Described signal amplifier is AD623 chip;
Described power supply comprises chargeable lithium cell, TPS78950 chip and ICL7660 chip, chargeable lithium cell is connected with the input end of TPS78950 chip, the output terminal of TPS78950 chip is divided into two-way, wherein a road is connected with the positive source of AD623 chip, and another road is connected with the power cathode of AD623 chip through ICL7660 chip.
6. dynamometer according to claim 1, is characterized in that, described sensor (5) is resistance strain type sensor, and the model of sensor (5) is microsensor 2C1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090644.XU CN203758657U (en) | 2014-02-28 | 2014-02-28 | Dynamometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090644.XU CN203758657U (en) | 2014-02-28 | 2014-02-28 | Dynamometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203758657U true CN203758657U (en) | 2014-08-06 |
Family
ID=51253913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090644.XU Expired - Fee Related CN203758657U (en) | 2014-02-28 | 2014-02-28 | Dynamometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203758657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136345A (en) * | 2015-08-21 | 2015-12-09 | 河海大学 | Hand-held stress detector and detection method |
-
2014
- 2014-02-28 CN CN201420090644.XU patent/CN203758657U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105136345A (en) * | 2015-08-21 | 2015-12-09 | 河海大学 | Hand-held stress detector and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20180228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |