Electromagnetic flowmeter powered by battery
Technical field
The utility model relates to the electromagnetic flowmeter powered by battery of a kind of remote reading, direct reading and control.
Background technology
The electromagnetic flowmeter that is used for liquid flow measurement at present is to realize by the electromagnetic flowmeter of external power supply power supply, because the many liquid flow measurements of restriction of measuring condition can not realize by external power supply; And the flowmeter survey signal transmits to connect with data line realizes that transmission range is short; Can not adopt battery powered main cause is that the power of display and sensor is big; Direct reading in the environment of and inconvenient reading abominable at some environment, the short reason of transmission range is no wireless signal transmission.
The utility model content
Also can realize fluid flow mensuration badly must make things convenient for direct reading in order to overcome to environment in the non-transformer area.The utility model provides a kind of electromagnetic flowmeter powered by battery, also can realize mensuration to fluid flow in the non-transformer area by being built in battery in the display; With the abominable and inconvenient reading of environment, can signal be transmitted out by the signal wireless transmission device that is built in the display, realize remote reading and control.
The purpose of this utility model is achieved through the following technical solutions.
Electromagnetic flowmeter powered by battery comprises sensor and converter,
Twine field coil on the centre pipe of described sensor, and on the conduit of the two ends of sensor mounting flange, the joint face place of flange is provided with the insulation lining, is electrode at the center of center sensor conduit, radio transmitting device is connected on the signal transmission line, is built in the display;
The housing of described converter is built-in with battery, battery is connected with display, wireless signal transmission, described display places the visible surface of converter, battery goes out circuit by umber of pulse and lead-in wire is connected with display, wireless signal transmission, be provided with surface-mounted integrated circuit in converter, surface-mounted integrated circuit is connected on display and the signal generation transmission line.
Adopting three strong value low frequency rectangle square waves of good, the anti-power frequency interference performance of zero stability in sensor, is cyclical intermission work, greatly reduces excitatory power consumption; In display, adopt integrated circuit and double integrator analog to digital conversion to have to eliminate on the amplifying circuit and disturb and the low effect of power, make powered battery also can satisfy flow measurement and request signal transmission.And battery and signal wireless transmission device be built in show in the device, be able to realize the purpose of powered battery and remote reading, control.
Sensor is connected on the pipeline by flange, and by having internal battery and signal wireless transmission device, display data to be read or are transferred to mensuration fluid flow device, by adopt three strong value low frequency rectangle square waves of good, the anti-power frequency interference performance of zero stability at sensor, be cyclical intermission work, greatly reduce excitatory power consumption; Display adopts integrated circuit and double integrator analog to digital conversion to have the interference of elimination and the low effect of power on amplifying circuit.Make no external power supply,, also can satisfy the flow measurement requirement with being built in powered battery in the display; And can signal be transmitted out by the signal wireless transmission device that is built in the display, realize remote reading, directly reading and control.
The beneficial effects of the utility model are to realize flow measurement by the powered battery in built-in and the display in no external power supply area; And can transmit out by signal by built-in signal wireless transmission device that environment is abominable and inconvenient reading, realize remote reading and control.It is wide to have usable range, and adaptability is strong.
Description of drawings
With embodiment the utility model is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the structural drawing of electromagnetic flowmeter powered by battery.
Embodiment
As shown in Figure 1, electromagnetic flowmeter powered by battery comprises sensor 2 and converter 1,
Twine field coil 12 on the centre pipe of described sensor 2, and on the conduit 11 of the two ends of sensor 2 mounting flange 8, the joint face place of flange 8 is provided with insulation lining 10, is electrode 9 at the center of center sensor conduit 11;
The housing of described converter 1 is built-in with battery 6, battery 6 is connected with display 3, wireless signal transmission 7, described display 3 places the visible surface of converter 1, battery 6 goes out circuit by umber of pulse and goes between 5 to be connected with display 3, wireless signal transmission 7, is provided with surface-mounted integrated circuit 4 in converter 1.
Adopting three strong value low frequency rectangle square waves of good, the anti-power frequency interference performance of zero stability in sensor, is cyclical intermission work, greatly reduces excitatory power consumption; In display, adopt integrated circuit and double integrator analog to digital conversion to have to eliminate on the amplifying circuit and disturb and the low effect of power, make powered battery also can satisfy flow measurement and request signal transmission.And battery and signal wireless transmission device be built in show in the device, be able to realize the purpose of powered battery and remote reading, control.
Sensor is connected on the pipeline by flange, and by having internal battery and signal wireless transmission device, display data to be read or are transferred to mensuration fluid flow device, by adopt three strong value low frequency rectangle square waves of good, the anti-power frequency interference performance of zero stability at sensor, be cyclical intermission work, greatly reduce excitatory power consumption; Display adopts integrated circuit and double integrator analog to digital conversion to have the interference of elimination and the low effect of power on amplifying circuit.Make no external power supply,, also can satisfy the flow measurement requirement with being built in powered battery in the display; And can signal be transmitted out by the signal wireless transmission device that is built in the display, realize remote reading, directly reading and control.
The beneficial effects of the utility model are to realize flow measurement by the powered battery in built-in and the display in no external power supply area; And can transmit out by signal by built-in signal wireless transmission device that environment is abominable and inconvenient reading, realize remote reading and control. It is wide to have the scope of application, strong adaptability.