CN201628542U

CN201628542U - Height measuring gauge

Info

Publication number: CN201628542U
Application number: CN200920289768XU
Authority: CN
Inventors: 张琪奕
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-31
Filing date: 2009-12-31
Publication date: 2010-11-10
Anticipated expiration: 2019-12-31

Abstract

The utility model relates to a height measuring gauge, which comprises a liquid communicating hose and two pressure sensors. The height measuring gauge is characterized in that the two pressure sensors are respectively fixed at two ends of the liquid communicating hose through two sealing devices in a sealed manner, and output ends of the two pressure sensors are connected with a data display device through conductors. The height measuring gauge adopts liquid as a medium and Pascal's law to measure height, and has the advantages of capability of realizing height measurement in any occasions, and high interference resistant capacity.

Description

Height measuring gauge

Technical field

The utility model belongs to a kind of measurement mechanism, is a kind of height measuring gauge specifically.

Background technology

The instrument of family's measuring height commonly used is a tape measure at present, when adopting the tape measure height, because the fixed error of tape measure starting point and people's the collimation error make that measured height-precision is not enough, so need a kind of measuring accuracy height, convenient and practical again height measuring gauge.

Summary of the invention

The purpose of this utility model provides a kind of measuring accuracy height, and convenient and practical again height measuring gauge is to overcome the deficiencies in the prior art.

To achieve these goals, the utility model comprises a fluid connection flexible pipe, two pressure transducers, be characterized in: sealing and fixing is at the two ends of fluid connection flexible pipe respectively by two packoffs for two pressure transducers, and two pressure transducer output terminals are connected with a data presentation device by lead.

Aforesaid liquid is communicated with flexible pipe and lead is arranged in the protection flexible pipe, and the two ends of protection flexible pipe are fixed with two packoffs respectively.

Also be provided with a tension steel cable in the above-mentioned protection flexible pipe, the two ends of tension steel cable are fixed with two packoffs respectively.

The utility model is medium with liquid, detects height with pascal's principle, has the height detection that realizes any occasion, and the strong characteristics of antijamming capability.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Among the figure: 1-fluid connection flexible pipe, 2-first packoff, 3-first pressure transducer, 4-data presentation device, 5-lead, 6-tension steel cable, 7-protection flexible pipe, 8-second packoff, 9-second pressure transducer, H-measuring height.

Embodiment

Be described in further detail below in conjunction with accompanying drawing team the utility model.

The utility model is by the device that has proposed a kind of novel difference of elevation sensor based on the differential pressure theory; by the fluid connection flexible pipe; packoff; pressure transducer and altitude information display device are formed the measurement display circuit; form protective device by tension steel cable and protection flexible pipe; the tension steel cable prevents the distortion of fluid connection flexible pipe, and the protection flexible pipe prevents that the fluid connection flexible pipe is impaired.

The utility model can be expressed as a tubule simply and connect two pressure transducers compositions, full of liquid in the pipe at its two ends.According to the different principle of the different pressure of communicating pipe liquid level, respectively adorn a pressure transducer as sensor at packoff.The pressure at two ends sensor connects by differential mode.When two pressure transducers were in same level, the pressure at pressure at both sides measuring point place was identical, because the characteristic of 2 pressure transducers is identical, the difference of its output voltage is zero.

When the utility model one end is fixed, when an end moves, according to Pascal law, opposite variation will appear in the pressure at both sides pressure tap place, and a wall pressure strengthens, and opposite side reduces.The pressure differential of both sides is: Δ P=ρ gH.And then can be in the hope of height difference H=Δ P/ ρ g.

Data presentation device is 2 passages, cooperates with pressure transducer, needs to subtract computing between the passage, finishes measurement, conversion and the demonstration of liquid level difference.

The utility model needs under the occasion of measuring height at some, distance between two pressure transducers can design according to the occasion of using, the yardstick of sensor can have series of advantages such as the linearity is good, cost is low as much as possible near the length of measurand.

The content that is not described in detail in this instructions belongs to this area professional and technical personnel's known prior art.

Claims

1. height measuring gauge, comprise a fluid connection flexible pipe, two pressure transducers, it is characterized in that: sealing and fixing is at the two ends of fluid connection flexible pipe respectively by two packoffs for two pressure transducers, and two pressure transducer output terminals are connected with a data presentation device by lead.

2. height measuring gauge as claimed in claim 1 is characterized in that: fluid connection flexible pipe and lead are arranged in the protection flexible pipe, and the two ends of protection flexible pipe are fixed with two packoffs respectively.

3. height measuring gauge as claimed in claim 1 or 2 is characterized in that: also be provided with a tension steel cable in the protection flexible pipe, the two ends of tension steel cable are fixed with two packoffs respectively.