CN216351262U - Detector with resistance-capacitance circuit network - Google Patents
Detector with resistance-capacitance circuit network Download PDFInfo
- Publication number
- CN216351262U CN216351262U CN202123057948.5U CN202123057948U CN216351262U CN 216351262 U CN216351262 U CN 216351262U CN 202123057948 U CN202123057948 U CN 202123057948U CN 216351262 U CN216351262 U CN 216351262U
- Authority
- CN
- China
- Prior art keywords
- detector
- signal output
- output terminal
- resistance
- resistor
- 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.)
- Active
Links
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a detector with a resistance-capacitance circuit network, which solves the technical problem of low frequency of the existing detector and comprises a detector, a capacitor, a first resistor and a second resistor, wherein the detector is provided with a first signal output terminal and a second signal output terminal, the capacitor is connected with the first resistor in series, one end of the capacitor is connected with the first signal output terminal of the detector through a lead, one end of the first resistor is connected with the second signal output terminal of the detector through a lead, one end of the second resistor is connected with the first signal output terminal of the detector through a lead, and the other end of the second resistor is connected with the second signal output terminal of the detector through a lead. The utility model can be used in the technical field of detectors.
Description
Technical Field
The utility model relates to a seismic detector, in particular to a detector with a resistance-capacitance circuit network.
Background
Regardless of the development of seismic exploration technology, receivers are always the first to be needed and focused as the most front-end acquisition component in a seismic exploration system configuration. In the prior art, a detector mainly comprises a shell system, a magnetic system and an elastic mass system. The magnetic system enclosed in the shell system provides a relatively uniform and closed magnetic field for the coil in the elastic mass system, when the detector receives a vibration signal, the shell system part can vibrate along with the vibration signal, and because the inertia effect of the coil and the shell system generate relative displacement, according to the electromagnetic induction principle, the coil cuts magnetic lines of force in the magnetic field, and two connecting terminals on the shell of the movement can output voltage signals changing along with the displacement, and the voltage signals can be recorded by an instrument as seismic signal data. In the seismic exploration project, thousands of seismic signal data are processed and analyzed, so that useful seismic data are obtained, and a basis is provided for later drilling or mining analysis.
Referring to the utility model patent No. 2016211861371, in the prior art, the detector core has two signal output terminals, which are generally on the top cover and designed to be arranged in bilateral symmetry.
However, in terms of performance of the conventional detector, the minimum detection frequency is 4.5Hz, and more application scenarios require lower frequency, so how to reduce the frequency is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The utility model aims to solve the technical problem of low frequency of the existing detector and provides a low-frequency detector with a resistance-capacitance circuit network.
The utility model provides a detector with a resistance-capacitance circuit network, which comprises a detector, a capacitor, a first resistor and a second resistor, wherein the detector is provided with a first signal output terminal and a second signal output terminal, the capacitor is connected with the first resistor in series, one end of the capacitor is connected with the first signal output terminal of the detector through a lead, one end of the first resistor is connected with the second signal output terminal of the detector through a lead, one end of the second resistor is connected with the first signal output terminal of the detector through a lead, and the other end of the second resistor is connected with the second signal output terminal of the detector through a lead.
The utility model has the beneficial effects that after the resistance-capacitance circuit network is added, the passive compensation is carried out, so that the lowest detection frequency of the detector product is widened to 2.2 Hz.
Drawings
FIG. 1 is a circuit schematic of the present invention;
FIG. 2 is a graph comparing test data of a raw product and an improved product.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments thereof with reference to the attached drawings.
As shown in fig. 1. The utility model adds a resistance-capacitance circuit network on the basis of the existing detector structure. The resistance-capacitance circuit network consists of a capacitor C, a first resistor R1 and a second resistor R2, the detector is provided with a first signal output terminal and a second signal output terminal, the capacitor C is connected with the first resistor R1 in series, one end of the capacitor C is connected with the first signal output terminal of the detector through a lead, one end of the first resistor R1 is connected with the second signal output terminal of the detector through a lead, the second resistor R2 is connected with the capacitor C and the first resistor R1 which are connected in series in parallel, one end of the second resistor R2 is connected with the first signal output terminal of the detector through a lead, and the other end of the second resistor R2 is connected with the second signal output terminal of the detector through a lead.
The detector product with the added capacitor C, the first resistor R1 and the second resistor R2 is tested and compared with the performance of the existing detector, and the test method comprises the following steps:
(1) preparing one geophone with the turning frequency of 4.0Hz in the prior art, and calling the geophone as an original geophone;
(2) a resistance-capacitance network is built, a capacitance-adjustable box and a standard resistance box are respectively adopted for related resistors and capacitors, the resistors and the capacitors are adjusted to be in an optimal state (when the output sensitivity is highest, C is 3.67 mu F, R1 is 891.3 omega, and R2 is 47k omega), and the geophone added with the resistance-capacitance network is called an improved geophone.
(3) And placing the original product and the improved product on a vibration test bench, changing the working frequency f, respectively testing the output values of the original product and the improved product, and calculating the respective sensitivities.
(4) The data is collated and filtered to form the data table of table 1 and the graph of fig. 2.
(5) According to the 3dB principle
The working frequency takes one digit after a decimal point, the output voltage takes three digits after the decimal point, the passband frequency fp of the original product is 4.5Hz, the passband cut-off frequency fc is 4.0Hz, and the signal attenuation is-2.49 dB at the moment; the passband frequency fp of the improved product is 3.0Hz, the passband cut-off frequency fc is 2.2Hz, and the signal attenuation is-2.36 dB at the moment.
TABLE 1 test data of original and improved products
The curves of fig. 2 are plotted by the test data in table 1. In fig. 2, fp represents a passband frequency, fc represents a passband cutoff frequency, in fig. 2, an original product represents a conventional detector product, and an improved product represents an improved product according to the present invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, since various modifications and changes will occur to those skilled in the art.
Claims (1)
1. The utility model provides a wave detector with resistance-capacitance circuit network, its characterized in that, includes wave detector, electric capacity, first resistance and second resistance, the wave detector is equipped with first signal output terminal and second signal output terminal, electric capacity and first resistance are established ties, the one end of electric capacity passes through the wire with the first signal output terminal of wave detector and is connected, the one end of first resistance passes through the wire with the second signal output terminal of wave detector and is connected, the one end of second resistance passes through the wire and is connected with the first signal output terminal of wave detector, the other end of second resistance passes through the wire and is connected with the second signal output terminal of wave detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123057948.5U CN216351262U (en) | 2021-12-07 | 2021-12-07 | Detector with resistance-capacitance circuit network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123057948.5U CN216351262U (en) | 2021-12-07 | 2021-12-07 | Detector with resistance-capacitance circuit network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216351262U true CN216351262U (en) | 2022-04-19 |
Family
ID=81161085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123057948.5U Active CN216351262U (en) | 2021-12-07 | 2021-12-07 | Detector with resistance-capacitance circuit network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216351262U (en) |
-
2021
- 2021-12-07 CN CN202123057948.5U patent/CN216351262U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mendecki | Seismic monitoring in mines | |
| US5172345A (en) | Geophone system | |
| CN104237934A (en) | Differential piezoelectric digital geophone | |
| CN103513273B (en) | The land digital seismoreceivers of four components | |
| CN216351262U (en) | Detector with resistance-capacitance circuit network | |
| CN107247288A (en) | A kind of seismic observation system and the method for generating earthquake transmission function | |
| CN106199687A (en) | Simple component geophone | |
| CN109471026B (en) | Method for identifying dynamic parameters of multiple damping loops of large solid rotor phase modulator | |
| CN114167491A (en) | Detector with source compensation circuit | |
| CN106019361A (en) | Moving coil type dual-parameter geophone and detection system | |
| CN202204934U (en) | Bridge type double differential capacitance device for weak vibration signal detection | |
| CN106019362B (en) | Moving coil type low-frequency expanded geophone | |
| CN102279414A (en) | Machine core of MEMS (Micro Electro Mechanical System) simulation detector | |
| US3015086A (en) | Continuous-wave seismic prospecting | |
| CN213042007U (en) | Coil skeleton improved detector | |
| Liguori et al. | Real-time detection of low-frequency components | |
| CN102955171A (en) | Geophone with magnetic-liquid sealed gas spring | |
| US2180949A (en) | Feedover device | |
| CN106768282B (en) | On-site calibration system for magneto-electric sensor | |
| CN202403792U (en) | Transformer vibration detecting sensor | |
| CN106656080B (en) | Front-end circuit system of elastic wave CT instrument | |
| CN206638741U (en) | A kind of tangential piezoelectric constant d15 measurement apparatus | |
| CN2766252Y (en) | Piezo-electric acceleration detector machine core | |
| CN202720048U (en) | Low frequency multiple output passive servo vibration sensor capable of simultaneously measuring acceleration and velocity | |
| US2588291A (en) | Distortionless seismic wave filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |