CN2170509Y - Portable energy-saving type turbine flow indicator - Google Patents
Portable energy-saving type turbine flow indicator Download PDFInfo
- Publication number
- CN2170509Y CN2170509Y CN 93236702 CN93236702U CN2170509Y CN 2170509 Y CN2170509 Y CN 2170509Y CN 93236702 CN93236702 CN 93236702 CN 93236702 U CN93236702 U CN 93236702U CN 2170509 Y CN2170509 Y CN 2170509Y
- Authority
- CN
- China
- Prior art keywords
- probe
- indicator
- saving type
- portable energy
- amplifier
- 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
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Abstract
The utility model relates to a portable energy-saving type turbine flow indicator, which is composed of a turbine flowmeter, a probe, an indicator, and a stand, wherein, the probe is composed of a sensor, an amplifier, a frequency convert and output circuit, and power; the sensor adopts an electromagnetic coil, the amplifier can adopt a direct coupled preamplifier, and the frequency convert and output circuit adopts a current switch circuit, a charge transfer charging circuit and a tunable discharging circuit; the turbine flowmeter is connected with the indicator through the probe, and the indicator is fixed on the stand. The utility model has the advantages of simple structure, small size, power consumption saving, portability, convenient use, etc. The utility model makes the turbine flowmeter became a local direct-reading flow meter.
Description
The utility model is a kind of turbo flow meter indicating instrument on the spot that is used for, and belongs to the thermal meter field of measuring technique.
In existing turbo flow meter, must form a system by several instruments, could realize its flow deixis, generally include flowmeter, sensor amplifier, frequency converter or frequency counter and indicating gauge etc.This system can not resemble spinner-type flowmeter that works directly reads flow, thereby makes troubles for many use occasions, as occasions such as test base, no alternating current place and provisional measurements.
The purpose of this utility model is at the deficiencies in the prior art, and a kind of portable energy-saving type turbine flow indicator that various occasions are used that is fit to is provided, and makes turbo flow meter become an incorporate flowmeter of direct-reading on the spot.
The utility model is made up of turbo flow meter, probe, indication gauge outfit and support, its probe is made of sensor, amplifier, frequency inverted and output circuit and power supply, sensor (5) is made of solenoid L, it is connected with frequency inverted and output circuit (7) through amplifier (6), whole probe (2) is powered by a power supply (8), turbo flow meter (1) is connected with indication gauge outfit (4) through probe, and indication gauge outfit (4) is fixed on the support (3).In order to guarantee the precision of supply voltage decline back instrument, power supply can be provided with direct current regulation circuit in the probe.The signal of turbo flow meter (1) is directly coupled to amplifier (6) by sensor (5) with the alternating-current pulse signal, forms pulse after amplifying shaping, delivers to indication gauge outfit (4) by frequency inverted and output circuit (7) again.
The utility model compared with prior art, have simple in structure, volume is little, power consumptive province, advantage such as easy to carry and use, it is integrated sensing, amplification, frequency inverted and flow indication and power supply, make turbo flow meter become direct-reading flowmeter on the spot, other instrument that also can be used for " ", " magnetic " sensing pulsed, only save No. 1 battery as power supply, just can use continuously more than 100 hours, still can guarantee precision when voltage drops to 2.4V with two.
Fig. 1 is a structural representation of the present utility model; Fig. 2 is a structure block diagram of the present utility model; Fig. 3 is a circuit theory synoptic diagram of the present utility model.
The utility model can take scheme shown in the drawings to realize.Turbo flow meter (1) can adopt turbo flow meter Q commonly used.Sensor (5) can adopt electromagnetic type sensing coil L.Amplifier (6) can adopt direct coupling prime amplifier, and it is by transistor T
1, T
2And T
3, resistance R
1, R
2, R
3, capacitor C
1And C
2, diode D
3Constitute, wherein diode D
3The voltage stabilizing of two parts circuit before and after being used for, D
1Be the protection diode.Frequency inverted and output circuit (7) are by transistor T
4～T
8, diode D
2, resistance R
4And R
5, capacitor C
3～C
4, potentiometer W and microampere meter μ A constitute.T
4～T
7Form current switching circuit to C
3Discharge and recharge.D
2And T
8Form charge transfer circuit, to C
4Carry out the integration type charging, form adjustable discharge loop and indication loop by potentiometer W and microampere meter μ A, electric current is directly proportional with incoming frequency in this loop.Power supply E adopts direct supply, No. 1 battery of available two joints, and also available other 3V direct supply, S is a power switch, capacitor C
5Be used to reduce the internal resistance of source.In order to make instrument when power supply drops to 2.4V, still can guarantee precision, mu balanced circuit can be set, it is by transistor T
9And T
10, resistance R
6～R
10, capacitor C
6～C
7, diode D
3With light emitting diode L
EDConstitute, wherein light emitting diode L
EDBoth as voltage stabilizing, again as pilot lamp.D
3Both, be used as the bias voltage voltage-stabilizing device of preamplifier state again as the voltage-stabilizing device of mu balanced circuit.Indication gauge outfit (4) can adopt microampere (μ A) table.
Claims (3)
1, a kind of portable energy-saving type turbine flow indicator that is used for indicating on the spot flow, form by turbo flow meter, probe, indication gauge outfit and support, it is characterized in that probe is made of sensor, amplifier, frequency inverted and output circuit and power supply, the sensor (5) that is made of solenoid L is connected with frequency inverted and output circuit (7) through amplifier (6), turbo flow meter (1) is connected with indication gauge outfit (4) through probe (2), and indication gauge outfit (4) is fixed on the support (3).
2, portable energy-saving type turbine flow indicator according to claim 1 is characterized in that being provided with direct current regulation circuit, and it is by transistor T
9And T
10, resistance R
6～R
10, capacitor C
6～C
7, diode D
3With light emitting diode L
EDConstitute.
3, portable energy-saving type turbo flow meter indicator according to claim 1 and 2 is characterized in that frequency inverted and output circuit are by transistor T
4～T
8, diode D
2, resistance R
4And R
5, capacitor C
3And C
4, potentiometer W and microampere meter μ A constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93236702 CN2170509Y (en) | 1993-04-21 | 1993-04-21 | Portable energy-saving type turbine flow indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93236702 CN2170509Y (en) | 1993-04-21 | 1993-04-21 | Portable energy-saving type turbine flow indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2170509Y true CN2170509Y (en) | 1994-06-29 |
Family
ID=33811822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93236702 Expired - Fee Related CN2170509Y (en) | 1993-04-21 | 1993-04-21 | Portable energy-saving type turbine flow indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2170509Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557891A (en) * | 2013-11-14 | 2014-02-05 | 中环天仪股份有限公司 | High-pressure resistant and corrosion resistant turbine flowmeter |
-
1993
- 1993-04-21 CN CN 93236702 patent/CN2170509Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557891A (en) * | 2013-11-14 | 2014-02-05 | 中环天仪股份有限公司 | High-pressure resistant and corrosion resistant turbine flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |