الوصف
Background Introduction:
Oil and gas pressure sensor is important sensor component which is
mainly used in automobile and engineering machinery for measurement
and control of engine oil
pressure and gas brake, it is one of the sensors in dosage.
Currently it is widely used as slide wire type or bimetallic strip
structured oil pressure gauge. The sensor consists
of a corrugated diaphragm and a slip line potentiometer. When the
pipeline hydraulic or air pressure changes, corrugated diaphragm
produces displacement, drives the
touching spot on the potentiometer sliding, changes its resistance
value, so as to realize the dial pressure indicator.
But this kind of pressure sensor has a mechanical touching spot,
the touching spot passes the largest l*0mA current, when the
automobile runs with high speed or
equipment operates with high power, the actual working condition of
the pressure sensor is very bad, more than ***0 ℃ high
temperature, below **0 ℃ low temperature,
and frequent shock, vibration, overload, etc., this makes the
sensor's mechanical and electrical life are severely affected, this
is the main factor why the reliability and life
expectancy of current domestic product is low, and this is a htac
technology bottleneck pressing for solution of automobile and
engineering machinery pressure control
instrumentation.
In view of this,our company cooperates with the international
well-known micro sensor experts, have developed "oil and gas
pressure sensor", it adopts the international
latest generation of "pressure sensor", and developed mating ASIC
special high integrated circuit, having solved the problems of
mechanical structural oil pressure gauge's
low precision and production quality bad stability, short lifespan,
poor sealing, the output signal can not match with the digital
instrument, with the characteristics of high
temperature resistance, corrosion resistance, no touching spot, can
match the digital instrument, long life, high cost performance,
etc, becomes a oil and gas pressure
measurement and control sensor product of the new generation.
This oil and gas pressure sensor module is mainly composed of a
pressure sensor component, application-specific integrated circuit,
MCU, PWM output, it can accurately
measure the medium pressure.
Characteristics:
Small output error. ±2% FS (including nonlinear, return difference
and repeatability, the whole temperature range)
Light weight, small volume, easy to install and operate
No wear, stable performance and long-term small drift, long service
life
Fully compatible, can replace the mechanical sensor directly
Perfect surge voltage protection
Introduction:
This series automobile pressure sensor is the electronic new
products lauched by us on the basis of many years' research on
pressure measurement. The products have
improved completely in view of the traditional mechanical
automotive pressure sensors, have eliminated the mechanical wear
inherent problem, while maintaining the good
performance at the same time provide a very low price. The main
function of the product is for measuring the pressure of gas and
liquid, can be used in motorcycles,
engines and other poor working environment.
Products with special medium layer of full digital silicon sensing
element, can be long-term under high temperature oil media. Due to
silicon sensor has the advantage of
flexible performance, no mechanical moving parts, it can ensure
long-term reliable operation at any auto parts.
Product weight is light, so it can be directly installed on the
flow pipe or container, the guiding mouth of pressure sensor can be
customized according to users' need,
directly screwing into process pipelines, about electrical
fittings, we can supply line pressing nut, standard insert or all
kinds of splices according to users' needs.
Working principle:
This product adopts full digital silicon sensing component with
special medium layer, can be long-term under high temperature oil
media. Because the silicon sensor has
excellent elastic performance, no mechanical moving parts, it can
ensure long-term reliable operation at any auto parts. Driven by
PWM mode header, fully compatible with
the original moving-coil pointer table and various types of lamp,
and completely overcome the mechanical sensors' contact erosion,
disconnection, leakage fault caused by
the mechanical wear.
Because this product is very light in weight, it can be directly
installed on the flow pipe or container, the guiding mouth of
pressure sensor can be customized according to
users' need, directly screwing into process pipelines, about
electrical fittings, we can supply line pressing nut, standard
insert or all kinds of splices according to users'
needs.
Instructions
Using objects: compressed air, engine oil, diesel oil
Range: 0 MPa to 1.0 MPa
Power supply: header signal line, no stabilivolt
Output signal: header output, equivalent to mechanical sensor
resistance (by PWM regulating) is suitable for matching with any
moving coil pointer table
Bus-out output, LIN2.0, ***0 kbps
Pressure overload: 5 MPa
The atmospheric pressure: *6 ~ **8 kPa
Environmental humidity: 0 ~ *8%
Compensation temperature: - *0 ~ + **5 ℃
The limit temperature: - *0 ~ + **0 ℃
Response time: not more than *0 ms
Precision level: not more than ± 0.*5 ~ 5% FS
Vibration influence: *0 ~ ***0 Hz frequency in any direction,
acceleration of the *5 g error caused by the vibration is less than
the error range of sensors
Power transient and surge protection: according to ISO *****2 test,
confirmed with the functional status of class B requirements
specified in the appendix A.
Power influence: power supply voltage changes between *6 ~ *2 VDC
range, error is within range of ± 0.5%.
Installation: tilt at any angle in front and at back of the
normal installation location, zero and range error are not
beyond the error range of sensor.
Structure: waterproof and dustproof
Service life: **7 times pressure loop
Installation: installed directly on the process pipe or container
Electrical interface: wire nut, standard insert or connector lead
G - meter output (direct moving-coil pointer table)
WK - a alarm output (direct drive alarm lamp)
The main technical data
Name
Data
Working temperature
- *0 ~ + **5
℃
Working humidity
Less
than *8%
Working voltage range
Header line
supplied, no stabilivolt
Pressure measurement range
0 ~ 1.0 MPa
Pressure measurement accuracy
Within scale limit pressure value ± 5%
Overload
5 times
Durability
1 million times through
alternating pressure cycling test
External dimension
Consistent
with the existing YG***1G, can be replaced
Alarm pressure
When measuring hydraulic/oil pressure < 0.*8 MPa,
When measuring air pressure < 0.4 MPa
| بلد: |
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